HFTrading

Introduction

The high-frequency account is now officially launched. This account is an account parallel to main, trade, margin, and future. The type is: trade_hf (the WEB side is called Pro Account).

At present, high-frequency accounts only support spot, and do not support margin or future for the time being.

Compared with ordinary trade accounts, trading with trade_hf account has lower latency and has a looser frequency limit.

If you are a spot high-frequency trader, it is strongly recommended to update the spot api code to the high-frequency account.

Tutorial

The current signature method of the high-frequency account is exactly the same as that of the trade account. Interfaces such as order placement and cancellation have been added, and other data still use the existing medium interface of the api document.

The following is a tutorial on the use of high-frequency accounts:

High frequency API document: https://docs.kucoin.com/spot-hf/#quick-start

Quick start:

Use POST /api/v2/accounts/inner-transfer to transfer funds to the high-frequency account, and the high-frequency account will be automatically created after the transfer is completed

Use POST /api/v1/hf/orders to place orders for high-frequency accounts

Note: At present, high-frequency accounts can only be activated through api transfers, and cannot be activated through web transfers. Only after api transfers can web transfers be supported

For more API communication or feedback, please join our official API telegram group: https://t.me/KuCoin_API or send an email to [email protected]

General

Introduction

Welcome to KuCoin’s trader and developer documentation. These documents outline the exchange functionality, market details, and APIs.

The whole documentation is divided into two parts: REST API and Websocket feed.

The REST API contains four sections: User(private) , Trade(private), Market Data(public), Margin Trade and Others(public).

The WebSocket contains two sections: Public Channels and Private Channels

Upcoming Changes

To get the latest updates in API, you can click ‘Watch’ on our KuCoin Docs Github.

To reinforce the security of the API, KuCoin upgraded the API key to version 2.0, the validation logic has also been changed. It is recommended to create and update your API key to version 2.0. The API key of version 1.0 is invalid. Check new signing method

29/05/23:

[New] Launched a series of endpoint for margin V3

08/04/23:

[New] For creating sub-accounts, please use the new endpoint POST /api/v2/sub/user/created to replace the old endpoint POST /api/v1/sub/user.
[New] For obtaining account summary information, please use the new endpoint GET /api/v2/user-info to replace the old endpoint GET /api/v1/user-info.

02/03/23:

[Add] the trade_hf type, and launched a series of endpoint for high-frequency accounts
[Modify] GET /api/v1/margin/lend/active and other four endpoint are changed from trade authority to general authority

17/02/23:

[Add] the uid、access field to the Topic of GET /api/v1/sub/user.

11/08/22:

[Deprecate] POST /api/v1/accounts interface

11/01/22:

[Add] chain response field to GET /api/v1/withdrawals interface and GET /api/v1/deposits interface
[Add] generalSubQuantity, marginSubQuantity, futuresSubQuantity, maxDefaultSubQuantity, maxGeneralSubQuantity, maxMarginSubQuantity and maxFuturesSubQuantity fields to POST /api/v1/sub/user interface response
[Add] GET /api/v2/sub/user and GET /api/v2/sub-accounts pagination interface

10/20/22:

[Deprecate] GET /api/v1/symbols interface, please use GET /api/v2/symbols new interface instead

09/22/22:

[Add] the DELETE /api/v1/sub/api-key interface related to sub-account
[Add] the time field (milliseconds) to the Topic of /market/level2.

08/24/22:

[Add] the following interfaces related to sub-account: GET /api/v1/user-info、POST /api/v1/sub/user、GET /api/v1/sub/api-key、POST /api/v1/sub/api-key、POST /api/v1/sub/api-key/update

08/03/22:

[Add] currencyType request parameter to GET /api/v1/base-fee interface
[Add] feeDeductType request parameter to POST /api/v1/withdrawals interface
[Add] chain response parameter to GET /api/v2/currencies/{currency} interface

07/05/22:

[Add] the following interfaces related to isolated margin: GET /api/v1/isolated/symbols、GET /api/v1/isolated/accounts、GET /api/v1/isolated/account/{symbol}、POST /api/v1/isolated/borrow、GET /api/v1/isolated/borrow/outstanding、GET /api/v1/isolated/borrow/repaid、POST /api/v1/isolated/repay/all、POST /api/v1/isolated/repay/single
[Modify] the following interface to support isolated margin: POST /api/v2/accounts/inner-transfer、GET /api/v1/accounts/transferable、POST /api/v1/margin/order
Check and revise the document description to improve the readability of the document

01/25/22:

[Add] Query the cross/isolated margin risk limit endpoint
[Deprecate] GET /api/v1/hist-orders endpoint

Reading Guide

Read Sandbox to learn how to debug API in a test environment.
Read REST API to learn how to build a request.
Read Time if you want to make a test request (and receive a sample response) without having to authorize.
Read Service Status to maintain your trading strategy based on service status
Read Authentication to learn how to make an authorized request.
Read Inner Transfer to see how to transfer assets.
Read List Accounts to learn how to get the data of your account balance.
Read Place a new order to see how to place an order.
Read Order Book to get a snapshot of the order book.
Read Websocket Feed to learn how to establish a websocket connection.
Read Level-2 Market Data to see how to build a local real-time order book with websocket.
Read Account balance notice to see how to get a private websocket feed and get real time notice of balance changes.

Sub-account

You can create a sub-account and its API key on the web end.

A sub-account can be used to separate the funds for crypto tradings and the funds can be transferred between the master account and the sub-account. Please note that the funds in sub-account is limited for sub-account crypto trading only and the funds cannot be withdrawn directly from the sub-account.

The API of a sub-account is available to access all the public endpoints. Besides this, traders can access the following private endpoints via the API key of a sub-account:

Endpoints	Description
List Accounts	Get the status of an account.
Get an Account	Get the info of an account.
Create an Account	Create an Account.
Get Account Ledgers	Get the funds details of an account.
Get Holds	Get the hold details of an account.
Inner Transfer	Transferring assets between the accounts of main and trade.
Place a new order	Place an order.
Cancel an order	Request to cancel an order.
Cancel all orders	Request to cancel all orders.
List Orders	Get orders details.
Recent Orders	Get order details of the last 24 hours(up to 1000).
Get an order	Get the details of a single order.
List Fills	Get the order execution details.
Recent Fills	Get order execution details of the last 24 hours(up to 1000).
Cancel Single Order by clientOid	Cancel Single Order by clientOid.
Get Single Active Order by clientOid	Get Single Active Order by clientOid.

A sub-account shares the same fee level as its master-account. (The fee level will be calculated based on the total transaction amount of the sub-account and the master account or the holding amount of KCS.)

The sub-account needs to transfer funds from the main account to the trade account before trading.

Matching Engine

Order Lifecycle

Valid orders sent to the matching engine are confirmed immediately and are in the received state. If an order executes against another order immediately, the order is considered done. An order can execute in part or whole. Any part of the order not filled immediately, will be considered open. Orders will stay in the open state until canceled or subsequently filled by new orders. Orders that are no longer eligible for matching (filled or canceled) are in the done state.

Self-Trade Prevention

Self-Trade Prevention is an option in advanced settings.It is not selected by default. If you specify STP when placing orders, your order won't be matched by another one which is also yours. On the contrary, if STP is not specified in advanced, your order can be matched by another one of your own orders. It should be noted that only the taker's protection strategy is effective.

DECREMENT AND CANCEL(DC)

Market orders are currently not supported for DC. When two orders from the same user cross, the smaller order will be canceled and the larger order will be decremented by the size of the smaller order. If the two orders are the same size, both will be canceled.

CANCEL OLDEST(CO)

Cancel the older (resting) order in full. The new order continues to execute.

CANCEL NEWEST(CN)

Cancel the newer (taking) order in full. The old resting order remains on the order book.

CANCEL BOTH(CB)

Immediately cancel both orders.

Client Libraries

Client libraries can help you integrate with our API quickly.

Official SDK of KuCoin

CCXT is our authorized SDK provider and you may access the KuCoin API through CCXT. For more information, please visit: https://ccxt.trade.

Examples

PHP File Example (GET & POST & DELETE) Github Link

Sandbox

Sandbox is the test environment, used for testing an API connection or web trading. It provides all the functionalities of the live exchange. All funds and transactions there are simulated for testing purposes.

The login session and the API key in the sandbox environment are completely separated from the production environment. You may use the web interface in the sandbox environment to create an API key.

Notice: After registering in the sandbox environment, you will receive a nummber amount of fake funds (BTC, ETH or KCS) automatically released by the system in your account. If you want to trade, please transfer assets from the main account to the trade account. The funds are only for test purposes and cannot be withdrawn.

Sandbox URLs for API test:

Website: https://sandbox.kucoin.com

REST API: https://openapi-sandbox.kucoin.com

Request Rate Limit

REST API

The limit strategy of private endpoints will restrict account by userid. The limit strategy of public endpoints will restrict IP. Currently Kucoin has three rate limits, which are as follows:

1、 error code: 1015, according to the IP rate limit, Cloudflare is based on the IP limit, all endpoint share the rate limit, currently 500/10s, the background may be fine-tuned, block 30s. Cloudflare does not have the configuration of the ip whitelist, so it cannot be specially adjusted, but this problem can be avoided, such as using the Websocket instead of the Rest(if the interface supports it). You can also use one server to bind multiple ip addresses (ipv4 or ipv6), and then use different ip for different sub-accounts.

2、 error code: 200002, rate limit of each private endpoint of kucoin, based on user uid+endpoint mode limit, block10s. For example, if a certain endpoint is called too frequently, you may encounter this problem. It is recommended to reduce the rate of use of that interface.

3、 error code: 429000, kucoin stand-alone capacity limit. It can be understood that the server is overloaded. If it is in spot, it is recommended to use a high-frequency account, which can reduce 429000 errors and reduce delays. The following is a tutorial on the use of high-frequency accounts: High frequency API documentation: https://docs.kucoin.com/spot-hf/#quick-start

Quick start:

1、 Use POST /api/v2/accounts/inner-transfer to transfer funds to the high-frequency account

2、 Use POST /api/v1/hf/orders to place high-frequency orders

At present, high-frequency accounts can only be activated through api transfers, and cannot be activated through web transfers. Only after api transfers can web transfers be supported

WEBSOCKET

Number of Connections

Number of connections per user ID: ≤ 50

Connection Times

Connection Limit: 30 per minute

Number of Uplink Messages

Message limit sent to the server: 100 per 10 seconds

Topic Subscription Limit

Maximum number of batch subscriptions at a time: 100 topics

Subscription limit for each connection: 300 topics

Apply for Higher Request Rate Limit

If you are a professional trader or market maker and need a higher limit, please send your KuCoin account, reason and approximate trading volume to [email protected].

Market Making Incentive Scheme

KuCoin offers a Market Making Incentive Scheme for professional liquidity providers. Key benefits of this program include:

Market Maker rebate.
Monthly rewards up to 30,000 KCS for the market maker with the best performance.
Direct Market Access and Co-location service.

Users with good maker strategies and huge trading volume are welcome to participate in this long-term program. If your account has a trading volume of more than 5000 BTC in the last 30 days on any exchange, please send the following information via email to [email protected], with subject "Spot Market Maker Application":

One KuCoin account ID (a non-referred account is required).
Proof of volume traded on any exchange within the past 30 days. Proof of a VIP level is also acceptable.
A brief explanation of your market making method (NO detail is needed), as well as estimation of maker orders’ percentage.

VIP Fast Track

KuCoin now provides a VIP fast track to users with a large trading volume in crypto. If your accounts on different platforms have a total trading volume of more than 1000 BTC in the last 30 days, please send the following information via email to [email protected], with subject "VIP Fast Track Application":

KuCoin account ID. Proof of trading volume on other platforms within the past 30 days. Proof of a VIP level is also acceptable.

We will offer you a jumpstart (e.g. a VIP level which matches your volume on other exchanges even though you are not trading as much on KuCoin) for 30 days. After 30 days, your VIP level will be calculated based on your actual trading volume on KuCoin.

FAQ

Invalid Signature

Check if your API-KEY, API-SECRET and API-PASSPHRASE are correct
Check if the string sequence is correct: timestamp + method + requestEndpoint + body
Check whether the timestamp in header is the same with the content above
Check whether you are using the correct encoding in your signature, e.g. base64
Check whether the GET request is submitted as a form
Check whether the content-type of your POST request is in application/json form and is encoded by charset=utf-8

Apply Withdraw

memo

For currencies without memo, the memo field is not required. Please do not pass the parameter when you are applying to withdraw via API, or the system will return: kucoin incorrect withdrawal address.

amount

The precision of the amount field shall satisfy the withdrawal precision requirements of the currency. The precision requirements for the currencies can be obtained by Withdrawals Quotas. The withdrawal amount must be an integer multiple of the withdrawal accuracy. If the withdrawal accuracy is 0, the withdrawal amount it can only be an integer.

.net SDK

Invalid Signature on POST Request

{"code":"400005", "msg":"Invalid KC-API-SIGN"}
There is a bug in the code:
var response = body == null ? await _restRepo.PostApi, SortedDictionary>(url, body, headers) : await _restRepo.PostApi>(url, headers);
After fixing:
var response = body != null ? await _restRepo.PostApi, SortedDictionary>(url, body, headers) : await _restRepo.PostApi>(url, headers);

WebSocket

Subscription limit for each connection: 300 topics;
Validity period for token: 24 hours;
Number of connections per user: ≤ 50
Number of Messages of the client side: 100 per 10 seconds;
Subscribing one symbol means subscribing a topic; (e.g.Topic: /market/level2:{symbol},{symbol}...)

403 Error

If an error occurs as follows: 403 "The request could not be satisfied. Bad Request" from Amazon CloudFront

Check whether the request is HTTPS
Remove the RequestBody from the GET request

REST API

Base URL

The REST API has endpoints for account and order management as well as public market data.

The base url is https://api.kucoin.com.

The request URL needs to be determined by BASE and specific endpoint combination.

Endpoint of the Interface

Each interface has its own endpoint, described by field HTTP REQUEST in the docs.

For the GET METHOD API, the endpoint needs to contain the query parameters string.

E.G. For "List Accounts", the default endpoint of this API is /api/v1/accounts. If you pass the "currency" parameter(BTC), the endpoint will become /api/v1/accounts?currency=BTC and the final request URL will be https://api.kucoin.com/api/v1/accounts?currency=BTC.

Request

All requests and responses are application/json content type.

Unless otherwise stated, all timestamp parameters should in milliseconds. e.g. 1544657947759

PARAMETERS

For the GET, DELETE request, all query parameters need to be included in the request url. (e.g. /api/v1/accounts?currency=BTC)

For the POST request, all query parameters need to be included in the request body with JSON. (e.g. {"currency":"BTC"}). Do not include extra spaces in JSON strings.

Errors

When errors occur, the HTTP error code or system error code will be returned. The body will also contain a message parameter indicating the cause.

HTTP error status codes

{
  "code": "400100",
  "msg": "Invalid Parameter."
}

Code	Meaning
400	Bad Request -- Invalid request format.
401	Unauthorized -- Invalid API Key.
403	Forbidden or Too Many Requests -- The request is forbidden or Access limit breached.
404	Not Found -- The specified resource could not be found.
405	Method Not Allowed -- You tried to access the resource with an invalid method.
415	Unsupported Media Type. You need to use: application/json.
500	Internal Server Error -- We had a problem with our server. Try again later.
503	Service Unavailable -- We're temporarily offline for maintenance. Please try again later.

System error codes

Code	Meaning
200001	Order creation for this pair suspended
200002	Order cancel for this pair suspended
200003	Number of orders breached the limit
200009	Please complete the KYC verification before you trade XX
200004	Balance insufficient
260210	withdraw.disabled -- Currency/Chain withdraw is closed, or user is frozen to withdraw
400001	Any of KC-API-KEY, KC-API-SIGN, KC-API-TIMESTAMP, KC-API-PASSPHRASE is missing in your request header
400002	KC-API-TIMESTAMP Invalid
400003	KC-API-KEY not exists
400004	KC-API-PASSPHRASE error
400005	Signature error
400006	The requested ip address is not in the api whitelist
400007	Access Denied
404000	Url Not Found
400100	Parameter Error
400200	Forbidden to place an order
400500	Your located country/region is currently not supported for the trading of this token
400600	validation.createOrder.symbolNotAvailable -- The trading pair has not yet started trading
400700	Transaction restricted, there's a risk problem in your account
400800	Leverage order failed
411100	User are frozen
415000	Unsupported Media Type -- The Content-Type of the request header needs to be set to application/json
500000	Internal Server Error
900001	symbol not exists

If the returned HTTP status code is 200, whereas the operation failed, an error will occur. You can check the above error code for details.

Success

A successful response is indicated by an HTTP status code 200 and system code 200000. The success response is as follows:

{
  "code": "200000",
  "data": "1544657947759"
}

Pagination

Pagination allows for fetching results with the current page and is well suited for real time data. Endpoints like /api/v1/deposits, /api/v1/orders, /api/v1/fills, will return the latest items by default (50 pages in total). To retrieve more results, users should specify the currentPage number in the subsequent requests to turn the page based on the data previously returned.

PARAMETERS

Parameter	Default	Description
currentPage	1	Current request page.
pageSize	50	Number of results per request. Minimum is 10, maximum is 500.

Example

GET /api/v1/orders?currentPage=1&pageSize=50

Types

Timestamps

Unless otherwise specified, all timestamps from API are returned in milliseconds(e.g. 1546658861000). Most modern languages and libraries will handle this without issues.

But please note that the timestamps between the matching engine and the order system are in nanoseconds.

Numbers

Decimal numbers are returned as strings in order to preserve the full precision across platforms. When making a request, it is recommended that you also convert your numbers to strings to avoid truncation and precision errors.

Authentication

Generating an API Key

Before being able to sign any requests, you must create an API key via the KuCoin website. Upon creating a key you need to write down 3 pieces of information:

Key
Secret
Passphrase

The Key and Secret are generated and provided by KuCoin and the Passphrase refers to the one you used to create the KuCoin API. Please note that these three pieces of information can not be recovered once lost. If you lost this information, please create a new API KEY.

API KEY PERMISSIONS

You can manage the API permission on KuCoin’s official website. The permissions are:

General - General - Allows a key general permissions. This includes most of the GET endpoints.
Trade - Allows a key to create orders.
Transfer - Allows a key to transfer funds (including deposit and withdrawal). Please note a sub-account is not authorized this permission. Enable with caution - API key transfers WILL BYPASS two-factor authentication.

Please refer to the documentation below to see what API key permissions are required for a specific route.

Creating a Request

All private REST requests must contain the following headers:

KC-API-KEY The API key as a string.
KC-API-SIGN The base64-encoded signature (see Signing a Message).
KC-API-TIMESTAMP A timestamp for your request.
KC-API-PASSPHRASE The passphrase you specified when creating the API key.
KC-API-KEY-VERSION You can check the version of API key on the page of API Management

Signing a Message

    <?php
    class API {
        public function __construct($key, $secret, $passphrase) {
          $this->key = $key;
          $this->secret = $secret;
          $this->passphrase = $passphrase;
        }

        public function signature($request_path = '', $body = '', $timestamp = false, $method = 'GET') {

          $body = is_array($body) ? json_encode($body) : $body; // Body must be in json format

          $timestamp = $timestamp ? $timestamp : time() * 1000;

          $what = $timestamp . $method . $request_path . $body;

          return base64_encode(hash_hmac("sha256", $what, $this->secret, true));
        }
    }
    ?>

    #Example for get balance of accounts in python

    api_key = "api_key"
    api_secret = "api_secret"
    api_passphrase = "api_passphrase"
    url = 'https://api.kucoin.com/api/v1/accounts'
    now = int(time.time() * 1000)
    str_to_sign = str(now) + 'GET' + '/api/v1/accounts'
    signature = base64.b64encode(
        hmac.new(api_secret.encode('utf-8'), str_to_sign.encode('utf-8'), hashlib.sha256).digest())
    passphrase = base64.b64encode(hmac.new(api_secret.encode('utf-8'), api_passphrase.encode('utf-8'), hashlib.sha256).digest())
    headers = {
        "KC-API-SIGN": signature,
        "KC-API-TIMESTAMP": str(now),
        "KC-API-KEY": api_key,
        "KC-API-PASSPHRASE": passphrase,
        "KC-API-KEY-VERSION": "2"
    }
    response = requests.request('get', url, headers=headers)
    print(response.status_code)
    print(response.json())

    #Example for create deposit addresses in python
    url = 'https://api.kucoin.com/api/v1/deposit-addresses'
    now = int(time.time() * 1000)
    data = {"currency": "BTC"}
    data_json = json.dumps(data)
    str_to_sign = str(now) + 'POST' + '/api/v1/deposit-addresses' + data_json
    signature = base64.b64encode(
        hmac.new(api_secret.encode('utf-8'), str_to_sign.encode('utf-8'), hashlib.sha256).digest())
    passphrase = base64.b64encode(
        hmac.new(api_secret.encode('utf-8'), api_passphrase.encode('utf-8'), hashlib.sha256).digest())
    headers = {
        "KC-API-SIGN": signature,
        "KC-API-TIMESTAMP": str(now),
        "KC-API-KEY": api_key,
        "KC-API-PASSPHRASE": passphrase,
        "KC-API-KEY-VERSION": 2
        "Content-Type": "application/json" # specifying content type or using json=data in request
    }
    response = requests.request('post', url, headers=headers, data=data_json)
    print(response.status_code)
    print(response.json())

For the header of KC-API-SIGN:

Use API-Secret to encrypt the prehash string {timestamp+method+endpoint+body} with sha256 HMAC. The request body is a JSON string and need to be the same with the parameters passed by the API.
After that, use base64-encode to encrypt the result in step 1 again.

For the KC-API-PASSPHRASE of the header:

For API key-V1.0, please pass requests in plaintext.
For API key-V2.0, please Specify KC-API-KEY-VERSION as 2 --> Encrypt passphrase with HMAC-sha256 via API-Secret --> Encode contents by base64 before you pass the request."

Notice:

The encrypted timestamp shall be consistent with the KC-API-TIMESTAMP field in the request header.
The body to be encrypted shall be consistent with the content of the Request Body.
The Method should be UPPER CASE.
For GET, DELETE request, the endpoint needs to contain the query string. e.g. /api/v1/deposit-addresses?currency=XBT. The body is "" if there is no request body (typically for GET requests).

#Example for Create Deposit Address

curl -H "Content-Type:application/json" -H "KC-API-KEY:5c2db93503aa674c74a31734" -H "KC-API-TIMESTAMP:1547015186532" -H "KC-API-PASSPHRASE:QWIxMjM0NTY3OCkoKiZeJSQjQA==" -H "KC-API-SIGN:7QP/oM0ykidMdrfNEUmng8eZjg/ZvPafjIqmxiVfYu4=" -H "KC-API-KEY-VERSION:2"
-X POST -d '{"currency":"BTC"}' http://api.kucoin.com/api/v1/deposit-addresses

KC-API-KEY = 5c2db93503aa674c74a31734
KC-API-SECRET = f03a5284-5c39-4aaa-9b20-dea10bdcf8e3
KC-API-PASSPHRASE = QWIxMjM0NTY3OCkoKiZeJSQjQA==
KC-API-KEY-VERSION = 2
TIMESTAMP = 1547015186532
METHOD = POST
ENDPOINT = /api/v1/deposit-addresses
STRING-TO-SIGN = 1547015186532POST/api/v1/deposit-addresses{"currency":"BTC"}
KC-API-SIGN = 7QP/oM0ykidMdrfNEUmng8eZjg/ZvPafjIqmxiVfYu4=

Selecting a Timestamp

The KC-API-TIMESTAMP header MUST be number of milliseconds since Unix Epoch in UTC. e.g. 1547015186532

Decimal values are allowed, e.g. 1547015186532. But you need to be aware that timestamp between match and order is nanosecond.

The difference between your timestamp and the API service time must be less than 5 seconds , or your request will be considered expired and rejected. We recommend using the time endpoint to query for the API server time if you believe there may be time skew between your server and the API server.

User

Signature is required for this part.

User Info

Get User Info of all Sub-Accounts

[{
        "userId": "5cbd31ab9c93e9280cd36a0a",  //subUserId
        "uid":"1789234",
        "subName": "kucoin1",
        "type": 0,  //type:0-nomal
        "remarks": "kucoin1",
        "access":"All"
    },
    {
        "userId": "5cbd31b89c93e9280cd36a0d",
        "uid":"1789431",
        "subName": "kucoin2",
        "type": 1,  //type:1-rebot
        "remarks": "kucoin2",
        "access":"All"
    }
]

You can get the user info of all sub-users via this interface.

It is recommended to use the GET /api/v2/sub/user interface for paging query

HTTP REQUEST

GET /api/v1/sub/user

Example

GET /api/v1/sub/user

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

N/A

RESPONSES

Field	Description
userId	The user ID of your sub-account
uid	The UID of your sub-account
subName	The username of your sub-account
type	The type of your sub-account
remarks	Remark
access	The permissions of your sub-account

Get Paginated List of Sub-Accounts

{
    "code":"200000",
    "data":{
        "currentPage":1,
        "pageSize":100,
        "totalNum":1,
        "totalPage":1,
        "items":[
            {
                "userId":"635002438793b80001dcc8b3",
                "uid":62356,
                "subName":"margin01",
                "status":2,
                "type":4,
                "access":"Margin",
                "createdAt":1666187844000,
                "remarks":null
            }
        ]
    }
}

This endpoint can be used to get a paginated list of sub-accounts. Pagination is required.

HTTP REQUEST

GET /api/v2/sub/user

Example

GET /api/v2/sub/user

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
currentPage	Int	[Optional] Current request page. Default is `1`
pageSize	Int	[Optional] Number of results per request. Minimum is `1`, maximum is `100`, default is `10`.

RESPONSES

Field	Description
createdAt	Time of the event
remarks	Remarks
status	Account status
subName	Sub-account name
type	The type of your sub-account
uid	Sub-account UID
userId	The user ID of your sub-account
access	Permission

Account

List Accounts

[
  {
    "id": "5bd6e9286d99522a52e458de",  //accountId
    "currency": "BTC",  //Currency
    "type": "main",     //Account type, including main and trade
    "balance": "237582.04299",  //Total assets of a currency
    "available": "237582.032",  //Available assets of a currency
    "holds": "0.01099" //Hold assets of a currency
  },
  {
    "id": "5bd6e9216d99522a52e458d6",
    "currency": "BTC",
    "type": "trade",
    "balance": "1234356",
    "available": "1234356",
    "holds": "0"
}]

Get a list of accounts.

Please deposit funds to the main account firstly, then transfer the funds to the trade account via Inner Transfer before transaction.

HTTP REQUEST

GET /api/v1/accounts

Example

GET /api/v1/accounts

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency
type	String	[Optional] Account type: main, trade, margin

RESPONSES

Field	Description
id	The ID of the account
currency	Currency
type	Account type: main, trade, margin
balance	Total funds in the account
available	Funds available to withdraw or trade
holds	Funds on hold (not available for use)

ACCOUNT TYPE

There are three types of accounts: 1) main account 2) trade account 3) margin account.

No fees will be charged for the funds transfer between these account.

The main account is used for the storage, withdrawal, and deposit of the funds. The assets in the main account cannot be directly used for trading. To trade cryptos, you need to transfer funds from the main account to the trade account.

The trading account is used for transaction. When you place an order, the system will use the balance of the trade account. You can’t withdraw funds directly from a trade account. To withdraw the funds, you need to transfer the funds from the trade account to the main account firstly.

The margin account is used to borrow assets and leverage transactions.

FUNDS ON HOLD

When placing an order, the funds for the order will be freezed. The freezed funds cannot be used for other order placement or withdrawal and will remain on hold until the order is filled or cancelled.

Get an Account

{
    "currency": "KCS",  //Currency
    "balance": "1000000060.6299",  //Total assets of a currency
    "available": "1000000060.6299",  //Available assets of a currency
    "holds": "0" //Hold assets of a currency
}

Information for a single account. Use this endpoint when you know the accountId.

HTTP REQUEST

GET /api/v1/accounts/{accountId}

Example

GET /api/v1/accounts/5bd6e9286d99522a52e458de

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
accountId	String	Path parameter. ID of the account

RESPONSES

Field	Description
currency	The currency of the account
balance	Total funds in the account
holds	Funds on hold (not available for use)
available	Funds available to withdraw or trade

Get Account Ledgers

This interface is for transaction records from all types of your accounts, supporting inquiry of various currencies. Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page.

{
  "currentPage": 1,
  "pageSize": 50,
  "totalNum": 2,
  "totalPage": 1,
  "items": [
    {
      "id": "611a1e7c6a053300067a88d9",//unique key
      "currency": "USDT", //Currency
      "amount": "10.00059547", //Change amount of the funds
      "fee": "0", //Deposit or withdrawal fee
      "balance": "0", //Total assets of a currency
      "accountType": "MAIN", //Account Type
      "bizType": "Loans Repaid", //business type
      "direction": "in", //side, in or out
      "createdAt": 1629101692950, //Creation time
      "context": "{\"borrowerUserId\":\"601ad03e50dc810006d242ea\",\"loanRepayDetailNo\":\"611a1e7cc913d000066cf7ec\"}" //Business core parameters
    },
    {
      "id": "611a18bc6a0533000671e1bf",
      "currency": "USDT",
      "amount": "10.00059547",
      "fee": "0",
      "balance": "0",
      "accountType": "MAIN",
      "bizType": "Loans Repaid",
      "direction": "in",
      "createdAt": 1629100220843,
      "context": "{\"borrowerUserId\":\"5e3f4623dbf52d000800292f\",\"loanRepayDetailNo\":\"611a18bc7255c200063ea545\"}"
    }
  ]
}

HTTP REQUEST

GET /api/v1/accounts/ledgers

Example

GET /api/v1/accounts/ledgers?currency=BTC&startAt=1601395200000

API KEY PERMISSIONS

This endpoint requires the "General" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 18 times/3s.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency ( you can choose more than one currency). You can specify 10 currencies at most for one time. If not specified, all currencies will be inquired by default.
direction	String	[Optional] Side: in - Receive, out - Send
bizType	String	[Optional] Business type: DEPOSIT, WITHDRAW, TRANSFER, SUB_TRANSFER,TRADE_EXCHANGE, MARGIN_EXCHANGE, KUCOIN_BONUS.
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)

RESPONSES

Field	Description
id	unique key
currency	The currency of an account
amount	The total amount of assets (fees included) involved in assets changes such as transaction, withdrawal and bonus distribution.
fee	Fees generated in transaction, withdrawal, etc.
balance	Remaining funds after the transaction.
accountType	The account type of the master user: MAIN, TRADE, MARGIN or CONTRACT.
bizType	Business type leading to the changes in funds, such as exchange, withdrawal, deposit, KUCOIN_BONUS, REFERRAL_BONUS, Lendings etc.
direction	Side, out or in
createdAt	Time of the event
context	Business related information such as order ID, serial No., etc.

context

If the returned value under bizType is “trade exchange”, the additional info. (such as order ID and trade ID, trading pair, etc.) of the trade will be returned in field context.

BizType Description

Field	Description
Assets Transferred in After Upgrading	Assets Transferred in After V1 to V2 Upgrading
Deposit	Deposit
Withdrawal	Withdrawal
Transfer	Transfer
Trade_Exchange	Trade
Vote for Coin	Vote for Coin
KuCoin Bonus	KuCoin Bonus
Referral Bonus	Referral Bonus
Rewards	Activities Rewards
Distribution	Distribution, such as get GAS by holding NEO
Airdrop/Fork	Airdrop/Fork
Other rewards	Other rewards, except Vote, Airdrop, Fork
Fee Rebate	Fee Rebate
Buy Crypto	Use credit card to buy crypto
Sell Crypto	Use credit card to sell crypto
Public Offering Purchase	Public Offering Purchase for Spotlight
Send red envelope	Send red envelope
Open red envelope	Open red envelope
Staking	Staking
LockDrop Vesting	LockDrop Vesting
Staking Profits	Staking Profits
Redemption	Redemption
Refunded Fees	Refunded Fees
KCS Pay Fees	KCS Pay Fees
Margin Trade	Margin Trade
Loans	Loans
Borrowings	Borrowings
Debt Repayment	Debt Repayment
Loans Repaid	Loans Repaid
Lendings	Lendings
Pool transactions	Pool-X transactions
Instant Exchange	Instant Exchange
Sub-account transfer	Sub-account transfer
Liquidation Fees	Liquidation Fees
Soft Staking Profits	Soft Staking Profits
Voting Earnings	Voting Earnings on Pool-X
Redemption of Voting	Redemption of Voting on Pool-X
Convert to KCS	Convert to KCS

Get Account Summary Info(deprecated)

{
    "code": "200000",
    "data": {
        "level": 0,
        "subQuantity": 11,
        "subQuantityByType": {
            "generalSubQuantity": 9,
            "marginSubQuantity": 1,
            "futuresSubQuantity": 1
        },
        "maxSubQuantity": 35,
        "maxSubQuantityByType": {
            "maxDefaultSubQuantity": 5,
            "maxGeneralSubQuantity": 10,
            "maxMarginSubQuantity": 10,
            "maxFuturesSubQuantity": 10
        }
    }
}

This endpoint can be used to obtain account summary information.

The GET /api/v1/user-info endpoint is deprecated, because the sub-account permissions structure has been upgraded, So it is recommended to use GET /api/v2/user-info endpoint instead

HTTP REQUEST

GET /api/v1/user-info

Example

GET /api/v1/user-info

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

N/A

RESPONSES

Field	Description
level	User level
subQuantity	Number of sub-accounts
generalSubQuantity	General sub-account opened quantity
marginSubQuantity	Margin sub-account opened quantity
futuresSubQuantity	Futures sub-account opened quantity
maxSubQuantity	Max number of sub-accounts
maxDefaultSubQuantity	Max number of default open sub-accounts
maxGeneralSubQuantity	Max number of General sub-accounts
maxMarginSubQuantity	Max number of Margin sub-account
maxFuturesSubQuantity	Max number of Futures sub-account

Get Account Summary Info(V2)

{
  "data" : {
    "level" : 0,
    "subQuantity" : 5,
    "maxDefaultSubQuantity" : 5,
    "maxSubQuantity" : 5,

    "spotSubQuantity" : 5,
    "marginSubQuantity" : 5,
    "futuresSubQuantity" : 5,  

    "maxSpotSubQuantity" : 0,
    "maxMarginSubQuantity" : 0,
    "maxFuturesSubQuantity" : 0 
  },
  "code" : "200000"
}

This endpoint can be used to obtain account summary information.

HTTP REQUEST

GET /api/v2/user-info

Example

GET /api/v2/user-info

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

N/A

RESPONSES

Field	Description
level	User level
subQuantity	Number of sub-accounts
maxDefaultSubQuantity	Max number of default open sub-accounts (according to level)
maxSubQuantity	Max number of sub-accounts = maxDefaultSubQuantity + maxSpotSubQuantity
spotSubQuantity	Number of sub-accounts with spot trading permissions enabled
marginSubQuantity	Number of sub-accounts with margin trading permissions enabled
futuresSubQuantity	Number of sub-accounts with futures trading permissions enabled
maxSpotSubQuantity	Max number of sub-accounts with additional Spot trading permissions
maxMarginSubQuantity	Max number of sub-accounts with additional margin trading permissions
maxFuturesSubQuantity	Max number of sub-accounts with additional futures trading permissions

Create Sub-Account(deprecated)

{
    "code": "200000",
    "data": {
        "uid": 9969082973,
        "subName": "AAAAAAAAAA0007",
        "remarks": "remark",
        "access": "All"
    }
}

This endpoint can be used to create sub-accounts.

The POST /api/v1/sub/user endpoint is deprecated, because the sub-account permissions structure has been upgraded, So it is recommended to use POST /api/v2/sub/user/created endpoint instead

HTTP REQUEST

POST /api/v1/sub/user

Example

POST /api/v1/sub/user

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
password	String	Password(7-24 characters, must contain letters and numbers, cannot only contain numbers or include special characters)
remarks	String	[Optional] Remarks(1~24 characters)
subName	String	Sub-account name(must contain 7-32 characters, at least one number and one letter. Cannot contain any spaces.)
access	String	[Optional] Permission (This can only be set to `All`, `Futures`, or `Margin`, default is `All`. `All`: unrestricted; `Futures`: cannot use margin features; `Margin`: cannot use futures features.)

RESPONSES

Field	Description
remarks	Remarks
subName	Sub-account name
uid	Sub-account UID
access	Permission

Create Sub-Account(V2)

{
    "code": "200000",
    "data": {
        "uid": 9969082973,
        "subName": "AAAAAAAAAA0007",
        "remarks": "remark",
        "access": "Spot"
    }
}

This endpoint can be used to create sub-accounts.

HTTP REQUEST

POST /api/v2/sub/user/created

Example

POST /api/v2/sub/user/created

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
password	String	Password(7-24 characters, must contain letters and numbers, cannot only contain numbers or include special characters)
remarks	String	[Optional] Remarks(1~24 characters)
subName	String	Sub-account name(must contain 7-32 characters, at least one number and one letter. Cannot contain any spaces.)
access	String	Permission (types include `Spot`, `Futures`, `Margin` permissions, which can be used alone or in combination).

RESPONSES

Field	Description
remarks	Remarks
subName	Sub-account name
uid	Sub-account UID
access	Permission

Get Sub-Account Spot API List

{
    "code": "200000",
    "data": [
        {
            "subName": "AAAAAAAAAAAAA0022",
            "remark": "hytest01-01",
            "apiKey": "63032453e75087000182982b",
            "permission": "General",
            "ipWhitelist": "",
            "createdAt": 1661150291000
        }
    ]
}

This endpoint can be used to obtain a list of Spot APIs pertaining to a sub-account.

HTTP REQUEST

GET /api/v1/sub/api-key

Example

GET /api/v1/sub/api-key

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
apiKey	String	[Optional] API-Key.
subName	String	Sub-account name.

RESPONSES

Field	Description
apiKey	API-Key
createdAt	Time of the event
ipWhitelist	IP whitelist
permission	Permissions
remark	Remarks
subName	Sub-account name

Create Spot APIs for Sub-Account

{
    "code": "200000",
    "data": {
        "subName": "AAAAAAAAAA0007",
        "remark": "remark",
        "apiKey": "630325e0e750870001829864",
        "apiSecret": "110f31fc-61c5-4baf-a29f-3f19a62bbf5d",
        "passphrase": "passphrase",
        "permission": "General",
        "ipWhitelist": "",
        "createdAt": 1661150688000
    }
}

This endpoint can be used to create Spot APIs for sub-accounts.

HTTP REQUEST

POST /api/v1/sub/api-key

Example

POST /api/v1/sub/api-key

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
subName	String	Sub-account name, create sub account name of API Key.
passphrase	String	Password(Must contain 7-32 characters. Cannot contain any spaces.)
remark	String	Remarks(1~24 characters)
permission	String	[Optional] Permissions(Only "General" and "Trade" permissions can be set, such as "General, Trade". The default is "General")
ipWhitelist	String	[Optional] IP whitelist(You may add up to 20 IPs. Use a halfwidth comma to each IP)
expire	String	[Optional] API expiration time; Never expire(default)`-1`，30Day`30`，90Day`90`，180Day`180`，360Day`360`

RESPONSES

Field	Description
apiKey	API-Key
createdAt	Time of the event
ipWhitelist	IP whitelist
permission	Permissions
remark	Remarks
subName	Sub-account name
apiSecret	API secret
passphrase	Password

Modify Sub-Account Spot APIs

{
    "code": "200000",
    "data": {
        "subName": "AAAAAAAAAA0007",
        "apiKey": "630329b4e7508700018298c5",
        "permission": "General",
        "ipWhitelist": "127.0.0.1",
    }
}

This endpoint can be used to modify sub-account Spot APIs.

HTTP REQUEST

POST /api/v1/sub/api-key/update

Example

POST /api/v1/sub/api-key/update

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
subName	String	Sub-account name
apiKey	String	API-Key(Sub-account APIKey)
passphrase	String	Password of API key
permission	String	[Optional] Permission list.If modified, permissions will be reset.
ipWhitelist	String	[Optional] IP whitelist(you may add up to 20 IPs. Use a halfwidth comma to each IP.If modified, the IP will be reset.)
expire	String	[Optional] API expiration time; Never expire(default)`-1`，30Day`30`，90Day`90`，180Day`180`，360Day`360`

RESPONSES

Field	Description
apiKey	API-Key
ipWhitelist	IP whitelist
permission	Permissions
subName	Sub-account name

Delete Sub-Account Spot APIs

{
 "code": "200000",
 "data": {
   "subName": "AAAAAAAAAA0007",
   "apiKey": "630325e0e750870001829864"
 }
}

This endpoint can be used to delete sub-account Spot APIs.

HTTP REQUEST

DELETE /api/v1/sub/api-key

Example

DELETE /api/v1/sub/api-key

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
apiKey	String	API-Key(API key to be deleted)
passphrase	String	Password(Password of the API key)
subName	String	Sub-account name(The sub-account name corresponding to the API key)

RESPONSES

Field	Description
apiKey	API-Key
subName	Sub-account name

Get Account Balance of a Sub-Account

{
    "subUserId":"5caefba7d9575a0688f83c45",
    "subName":"sdfgsdfgsfd",
    "mainAccounts":[
        {
            "currency":"BTC",
            "balance":"8",
            "available":"8",
            "holds":"0",
            "baseCurrency":"BTC",
            "baseCurrencyPrice":"1",
            "baseAmount":"1.1"
        }
    ],
    "tradeAccounts":[
        {
            "currency":"BTC",
            "balance":"1000",
            "available":"1000",
            "holds":"0",
            "baseCurrency":"BTC",
            "baseCurrencyPrice":"1",
            "baseAmount":"1.1"
        }
    ],
    "marginAccounts":[
        {
            "currency":"BTC",
            "balance":"1.1",
            "available":"1.1",
            "holds":"0",
            "baseCurrency":"BTC",
            "baseCurrencyPrice":"1",
            "baseAmount":"1.1"
        }
    ]
}

This endpoint returns the account info of a sub-user specified by the subUserId.

HTTP REQUEST

GET /api/v1/sub-accounts/{subUserId}

Example

GET /api/v1/sub-accounts/5caefba7d9575a0688f83c45?includeBaseAmount=false

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
subUserId	String	the user ID of a sub-account.
includeBaseAmount	boolean	false: do not display the currency which asset is 0, true: display all currency

RESPONSES

Field	Description
subUserId	The user ID of a sub-user.
subName	The username of a sub-user.
currency	Currency
balance	Total funds in an account.
available	Funds available to withdraw or trade.
holds	Funds on hold (not available for use).
baseCurrency	Calculated on this currency.
baseCurrencyPrice	The base currency price.
baseAmount	The base currency amount.

Get the Aggregated Balance of all Sub-Accounts

[
    {
        "subUserId":"5caefba7d9575a0688f83c45",
        "subName":"kucoin1",
        "mainAccounts":[
            {
                "currency":"BTC",
                "balance":"6",
                "available":"6",
                "holds":"0",
                "baseCurrency":"BTC",
                "baseCurrencyPrice":"1",
                "baseAmount":"1.1"
            }
        ],
        "tradeAccounts":[
            {
                "currency":"BTC",
                "balance":"1000",
                "available":"1000",
                "holds":"0",
                "baseCurrency":"BTC",
                "baseCurrencyPrice":"1",
                "baseAmount":"1.1"
            }
        ],
        "marginAccounts":[
            {
                "currency":"BTC",
                "balance":"1.1",
                "available":"1.1",
                "holds":"0",
                "baseCurrency":"BTC",
                "baseCurrencyPrice":"1",
                "baseAmount":"1.1"
            }
        ]
    }
]

This endpoint returns the account info of all sub-users.

It is recommended to use the GET /api/v2/sub-accounts interface for paging query

HTTP REQUEST

GET /api/v1/sub-accounts

Example

GET /api/v1/sub-accounts

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

N/A

RESPONSES

Field	Description
subUserId	The user ID of the sub-user.
subName	The username of the sub-user.
currency	The currency of the account.
balance	Total funds in the account.
available	Funds available to withdraw or trade.
holds	Funds on hold (not available for use).
baseCurrency	Calculated on this currency.
baseCurrencyPrice	The base currency price.
baseAmount	The base currency amount.

Get Paginated Sub-Account Information.

{
    "code": "200000",
    "data": {
        "currentPage": 1,
        "pageSize": 10,
        "totalNum": 14,
        "totalPage": 2,
        "items": [
            {
                "subUserId": "635002438793b80001dcc8b3",
                "subName": "margin03",
                "mainAccounts": [
                    {
                        "currency": "00",
                        "balance": "0",
                        "available": "0",
                        "holds": "0",
                        "baseCurrency": "BTC",
                        "baseCurrencyPrice": "125.63",
                        "baseAmount": "0"
                    }
                ]
            }
        ]
    }
}

This endpoint can be used to get paginated sub-account information. Pagination is required.

HTTP REQUEST

GET /api/v2/sub-accounts

Example

GET /api/v2/sub-accounts

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
currentPage	Int	[Optional] Current request page. Default is `1`
pageSize	Int	[Optional] Number of results per request. Minimum is `1`, maximum is `100`, default is `10`.

RESPONSES

Field	Description
subUserId	The user ID of the sub-user.
subName	The username of the sub-user.
currency	The currency of the account.
balance	Total funds in the account.
available	Funds available to withdraw or trade.
holds	Funds on hold (not available for use).
baseCurrency	Calculated on this currency.
baseCurrencyPrice	The base currency price.
baseAmount	The base currency amount.

Get the Transferable

 {
    "currency": "KCS",
    "balance": "0",
    "available": "0",
    "holds": "0",
    "transferable": "0"
}

This endpoint returns the transferable balance of a specified account.

HTTP REQUEST

GET /api/v1/accounts/transferable

Example

GET /api/v1/accounts/transferable?currency=BTC&type=MAIN

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
currency	String	currency
type	String	The account type: `MAIN`, `TRADE`, `MARGIN` or `ISOLATED`
tag	String	[Optional] Trading pair, required when the account type is `ISOLATED`; other types are not passed, e.g.: `BTC-USDT`

RESPONSES

Field	Description
currency	Currency
balance	Total funds in an account.
available	Funds available to withdraw or trade.
holds	Funds on hold (not available for use).
transferable	Funds available to transfer.

Transfer between Master user and Sub-user

{
    "orderId": "5cbd870fd9575a18e4438b9a"
}

Funds in the main account, trading account and margin account of a Master Account can be transferred to the main account, trading account, futures account and margin account of its Sub-Account. The futures account of both the Master Account and Sub-Account can only accept funds transferred in from the main account, trading account and margin account and cannot transfer out to these accounts.

HTTP REQUEST

POST /api/v2/accounts/sub-transfer

Example

POST /api/v2/accounts/sub-transfer

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 3 times/3s.

PARAMETERS

Param	Type	Description
clientOid	String	Unique order id created by users to identify their orders, e.g. UUID, with a maximum length of 128 bits.
currency	String	currency
amount	String	Transfer amount, the amount is a positive integer multiple of the currency precision.
direction	String	OUT — the master user to sub user IN — the sub user to the master user.
accountType	String	[Optional] The account type of the master user: MAIN, TRADE, MARGIN or CONTRACT, default is MAIN.
subAccountType	String	[Optional] The account type of the sub user: MAIN, TRADE, MARGIN or CONTRACT, default is MAIN.
subUserId	String	the user ID of a sub-account.

RESPONSES

Field	Description
orderId	The order ID of a master-sub assets transfer.

Inner Transfer

{
    "orderId": "5bd6e9286d99522a52e458de"
}

This API endpoint can be used to transfer funds between accounts internally. Users can transfer funds between their main account, trading account, cross margin account, and isolated margin account free of charge. Transfer of funds from the main account, cross margin account, and trading account to the futures account is supported, but transfer of funds from futures accounts to other accounts is not supported.

HTTP REQUEST

POST /api/v2/accounts/inner-transfer

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Param	Type	Description
clientOid	String	clientOid, the unique identifier created by the client, use of UUID, with a maximum length of 128 bits.
currency	String	currency
from	String	Payment Account Type: `main`, `trade`, `margin`, or `isolated`
to	String	Receiving Account Type: `main`, `trade`, `margin`, `isolated`, or `contract`
amount	String	Transfer amount, the precision being a positive integer multiple of the Currency Precision
fromTag	String	[Optional] Trading pair, required when the payment account type is `isolated`, e.g.: `BTC-USDT`
toTag	String	[Optional] Trading pair, required when the receiving account type is `isolated`, e.g.: `BTC-USDT`

RESPONSES

Field	Description
orderId	The order ID of a funds transfer

Deposit

Create Deposit Address

{
    "address": "0x78d3ad1c0aa1bf068e19c94a2d7b16c9c0fcd8b1",
    "memo": "5c247c8a03aa677cea2a251d",   //tag
    "chain": "OMNI"
}

Request via this endpoint to create a deposit address for a currency you intend to deposit.

HTTP REQUEST

POST /api/v1/deposit-addresses

Example

POST /api/v1/deposit-addresses

API KEY PERMISSIONS

This endpoint requires the "Transfer" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency
chain	String	[Optional] The chain name of currency, e.g. The available value for USDT are OMNI, ERC20, TRC20, default is ERC20. The available value for BTC are Native, Segwit, TRC20, the parameters are bech32, btc, trx, default is Native. This only apply for multi-chain currency, and there is no need for single chain currency.

RESPONSES

Field	Description
address	Deposit address
memo	Address remark. If there’s no remark, it is empty. When you withdraw from other platforms to the KuCoin, you need to fill in memo(tag). If you do not fill memo (tag), your deposit may not be available, please be cautious.
chain	The chain name of currency, e.g. The available value for USDT are OMNI, ERC20, TRC20, default is ERC20. The available value for BTC are Native, Segwit, TRC20, the parameters are bech32, btc, trx, default is Native.

Get Deposit Addresses(V2)

[
  {
    "address": "bc1qaj6kkv85w5d6lr8p8h7tckyce5hnwmyq8dd84d",
    "memo": "",
    "chain": "BTC-Segwit",
    "contractAddress": ""
  },
  {
    "address": "3HwsFot9TW6jL4K4EUHxDSyL8myttxV7Av",
    "memo": "",
    "chain": "BTC",
    "contractAddress": ""
  },
  {
    "address": "TUDybru26JmozStbg2cJGDbR9EPSbQaAie",
    "memo": "",
    "chain": "TRC20",
    "contractAddress": ""
  }
]

Get all deposit addresses for the currency you intend to deposit. If the returned data is empty, you may need to create a deposit address first.

HTTP REQUEST

GET /api/v2/deposit-addresses

Example

GET /api/v2/deposit-addresses?currency=BTC

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	The currency

RESPONSES

Field	Description
address	Deposit address
memo	Address remark. If there’s no remark, it is empty. When you withdraw from other platforms to the KuCoin, you need to fill in memo(tag). If you do not fill memo (tag), your deposit may not be available, please be cautious.
chain	The chain name of currency.
contractAddress	The token contract address.

Get Deposit Address

{
    "address": "0x78d3ad1c0aa1bf068e19c94a2d7b16c9c0fcd8b1",
    "memo": "5c247c8a03aa677cea2a251d",        //tag
    "chain": "OMNI"
}

Get a deposit address for the currency you intend to deposit. If the returned data is null, you may need to create a deposit address first.

HTTP REQUEST

GET /api/v1/deposit-addresses

Example

GET /api/v1/deposit-addresses

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency
chain	String	[Optional] The chain name of currency, e.g. The available value for USDT are OMNI, ERC20, TRC20, default is ERC20. The available value for BTC are Native, Segwit, TRC20, the parameters are bech32, btc, trx, default is Native. This only apply for multi-chain currency, and there is no need for single chain currency.

RESPONSES

Field	Description
address	Deposit address
memo	Address remark. If there’s no remark, it is empty. When you withdraw from other platforms to the KuCoin, you need to fill in memo(tag). If you do not fill memo (tag), your deposit may not be available, please be cautious.
chain	The chain name of currency, e.g. The available value for USDT are OMNI, ERC20, TRC20, default is ERC20. The available value for BTC are Native, Segwit, TRC20, the parameters are bech32, btc, trx, default is Native.

Get Deposit List

{
    "code": "200000",
    "data": {
        "currentPage": 1,
        "pageSize": 50,
        "totalNum": 1,
        "totalPage": 1,
        "items": [
            {
                "currency": "XRP",
                "chain": "xrp",
                "status": "SUCCESS",
                "address": "rNFugeoj3ZN8Wv6xhuLegUBBPXKCyWLRkB",
                "memo": "1919537769",
                "isInner": false,
                "amount": "20.50000000",
                "fee": "0.00000000",
                "walletTxId": "2[email protected]e8902757998fc352e6c9d8890d18a71c",
                "createdAt": 1666600519000,
                "updatedAt": 1666600549000,
                "remark": "Deposit"
            }
        ]
    }
}

Request via this endpoint to get deposit list Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page.

HTTP REQUEST

GET /api/v1/deposits

Example

GET /api/v1/deposits

API KEY PERMISSIONS

This endpoint requires the "General" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 6 times/3s.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)
status	String	[Optional] Status. Available value: `PROCESSING`, `SUCCESS`, and `FAILURE`

RESPONSES

Field	Description
address	Deposit address
memo	Address remark. If there’s no remark, it is empty. When you withdraw from other platforms to the KuCoin, you need to fill in memo(tag). If you do not fill memo (tag), your deposit may not be available, please be cautious.
amount	Deposit amount
fee	Fees charged for deposit
currency	Currency
chain	The chain of currency
isInner	Internal deposit or not
walletTxId	Wallet Txid
status	Status
remark	remark
createdAt	Creation time of the database record
updatedAt	Update time of the database record

Get V1 Historical Deposits List

{
    "currentPage":1,
    "pageSize":1,
    "totalNum":9,
    "totalPage":9,
    "items":[
        {
            "currency":"BTC",
            "createAt":1528536998,
            "amount":"0.03266638",
            "walletTxId":"5[email protected][email protected]",
            "isInner":false,
            "status":"SUCCESS"
        }
    ]
}

Request via this endpoint to get the V1 historical deposits list on KuCoin.

HTTP REQUEST

GET /api/v1/hist-deposits

Example

GET /api/v1/hist-deposits

API KEY PERMISSIONS

This endpoint requires the "General" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 6 times/3s.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency.
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)
status	String	[Optional] Status. Available value: PROCESSING, SUCCESS, and FAILURE

RESPONSES

Field	Description
amount	Deposit amount
currency	Currency
isInner	Internal deposit or not
walletTxId	Wallet Txid
createAt	Creation time of the database record
status	Status

Withdrawals

Get Withdrawals List

{
    "code": "200000",
    "data": {
        "currentPage": 1,
        "pageSize": 50,
        "totalNum": 1,
        "totalPage": 1,
        "items": [
            {
                "id": "63564dbbd17bef00019371fb",
                "currency": "XRP",
                "chain": "xrp",
                "status": "SUCCESS",
                "address": "rNFugeoj3ZN8Wv6xhuLegUBBPXKCyWLRkB",
                "memo": "1919537769",
                "isInner": false,
                "amount": "20.50000000",
                "fee": "0.50000000",
                "walletTxId": "2C24A6D5B3E7D5B6AA6534025B9B107AC910309A98825BF5581E25BEC94AD83B",
                "createdAt": 1666600379000,
                "updatedAt": 1666600511000,
                "remark": "test"
            }
        ]
    }
}

HTTP REQUEST

GET /api/v1/withdrawals

Example

GET /api/v1/withdrawals

API KEY PERMISSIONS

This endpoint requires the "General" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 6 times/3s.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency
status	String	[Optional] Status. Available value: `PROCESSING`, `WALLET_PROCESSING`, `SUCCESS`, and `FAILURE`
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)

RESPONSES

Field	Description
id	Unique identity
address	Withdrawal address
memo	Address remark. If there’s no remark, it is empty. When you withdraw from other platforms to the KuCoin, you need to fill in memo(tag). If you do not fill memo (tag), your deposit may not be available, please be cautious.
currency	Currency
chain	The chain of currency
amount	Withdrawal amount
fee	Withdrawal fee
walletTxId	Wallet Txid
isInner	Internal withdrawal or not
status	status
remark	remark
createdAt	Creation time
updatedAt	Update time

Get V1 Historical Withdrawals List

{
    "currentPage":1,
    "pageSize":1,
    "totalNum":2,
    "totalPage":2,
    "items":[
        {
            "currency":"BTC",
            "createAt":1526723468,
            "amount":"0.534",
            "address":"33xW37ZSW4tQvg443Pc7NLCAs167Yc2XUV",
            "walletTxId":"aeacea864c020acf58e51606169240e96774838dcd4f7ce48acf38e3651323f4",
            "isInner":false,
            "status":"SUCCESS"
        }
    ]
}

List of KuCoin V1 historical withdrawals.

HTTP REQUEST

GET /api/v1/hist-withdrawals

Example

GET /api/v1/hist-withdrawals

API KEY PERMISSIONS

This endpoint requires the "General" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 6 times/3s.

PARAMETERS

Param	Type	Description
currentPage	int	[Optional] The current page.
pageSize	int	[Optional] Number of entries per page.
currency	String	[Optional] Currency.
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)
status	String	[Optional] Status. Available value: PROCESSING, SUCCESS, and FAILURE

RESPONSES

Field	Description
amount	Withdrawal amount
currency	Currency
isInner	Internal deposit or not
walletTxId	Wallet Txid
createAt	Creation time of the database record
status	Status

Get Withdrawal Quotas

{
    "currency": "KCS",
    "limitBTCAmount": "2.0",
    "usedBTCAmount": "0",
    "remainAmount": "75.67567568",
    "availableAmount": "9697.41991348",
    "withdrawMinFee": "0.93000000",
    "innerWithdrawMinFee": "0.00000000",
    "withdrawMinSize": "1.4",
    "isWithdrawEnabled": true,
    "precision": 8,   //withdrawal precision
    "chain": "OMNI"
}

HTTP REQUEST

GET /api/v1/withdrawals/quotas

Example

GET /api/v1/withdrawals/quotas?currency=BTC

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	currency. e.g. BTC
chain	String	[Optional] The chain of currency. This only apply for multi-chain currency, and there is no need for single chain currency; you can query the `chain` through the response of the `GET /api/v2/currencies/{currency}` interface.

RESPONSES

Field	Description
currency	Currency
availableAmount	Current available withdrawal amount
remainAmount	Remaining amount available to withdraw the current day
withdrawMinSize	Minimum withdrawal amount
limitBTCAmount	24-hour total withdrawal limit, equivalent to BTC
innerWithdrawMinFee	Fees for internal withdrawal
usedBTCAmount	The estimated BTC amount (based on the daily fiat limit) that can be withdrawn within the current day
isWithdrawEnabled	Is the withdraw function enabled or not
withdrawMinFee	Minimum withdrawal fee
precision	Floating point precision.
chain	The chain name of currency, e.g. The available value for USDT are OMNI, ERC20, TRC20, default is ERC20.

Apply Withdraw

{
  "withdrawalId": "5bffb63303aa675e8bbe18f9"
}

HTTP REQUEST

POST /api/v1/withdrawals

On the WEB end, you can open the switch of specified favorite addresses for withdrawal, and when it is turned on, it will verify whether your withdrawal address(including chain) is a favorite address(it is case sensitive); if it fails validation, it will respond with the error message {"msg":"Already set withdraw whitelist, this address is not favorite address","code":"260325"}.

Example

POST /api/v1/withdrawals

API KEY PERMISSIONS

This endpoint requires the Transfer permission.

PARAMETERS

Param	Type	Description
currency	String	Currency
address	String	Withdrawal address
amount	number	Withdrawal amount, a positive number which is a multiple of the amount precision (fees excluded)
memo	String	[Optional] Address remark. If there’s no remark, it is empty. When you withdraw from other platforms to the KuCoin, you need to fill in memo(tag). If you do not fill memo (tag), your deposit may not be available, please be cautious.
isInner	boolean	[Optional] Internal withdrawal or not. Default setup: false
remark	String	[Optional] Remark
chain	String	[Optional] The chain of currency. For a currency with multiple chains, it is recommended to specify chain parameter instead of using the default chain; you can query the `chain` through the response of the `GET /api/v2/currencies/{currency}` interface.
feeDeductType	String	[Optional] Withdrawal fee deduction type: `INTERNAL` or `EXTERNAL` or not specified 1. `INTERNAL`- deduct the transaction fees from your withdrawal amount 2. `EXTERNAL`- deduct the transaction fees from your main account 3. If you don't specify the `feeDeductType` parameter, when the balance in your main account is sufficient to support the withdrawal, the system will initially deduct the transaction fees from your main account. But if the balance in your main account is not sufficient to support the withdrawal, the system will deduct the fees from your withdrawal amount. For example: Suppose you are going to withdraw 1 BTC from the KuCoin platform (transaction fee: 0.0001BTC), if the balance in your main account is insufficient, the system will deduct the transaction fees from your withdrawal amount. In this case, you will be receiving 0.9999BTC.

RESPONSES

Field	Description
withdrawalId	Withdrawal id

Cancel Withdrawal

Only withdrawals requests of PROCESSING status could be canceled.

HTTP REQUEST

DELETE /api/v1/withdrawals/{withdrawalId}

Example

DELETE /api/v1/withdrawals/5bffb63303aa675e8bbe18f9

API KEY PERMISSIONS

This endpoint requires the "Transfer" permission.

PARAMETERS

Param	Type	Description
withdrawalId	String	Path parameter, a unique ID for a withdrawal order

Trade Fee

Basic user fee

This interface is for the basic fee rate of users

{
    "code": "200000",
    "data": {
        "takerFeeRate": "0.001",
        "makerFeeRate": "0.001"
    }
}

HTTP REQUEST

GET /api/v1/base-fee

Example

GET /api/v1/base-fee
GET /api/v1/base-fee?currencyType=1

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
currencyType	String	[Optional] Currency type: `0`-crypto currency, `1`-fiat currency. default is `0`-crypto currency

RESPONSES

Field	Description
takerFeeRate	Base taker fee rate
makerFeeRate	Base maker fee rate

Actual fee rate of the trading pair

This interface is for the actual fee rate of the trading pair. You can inquire about fee rates of 10 trading pairs each time at most. The fee rate of your sub-account is the same as that of the master account.

{
    "code": "200000",
    "data": [
        {
            "symbol": "BTC-USDT",
            "takerFeeRate": "0.001",
            "makerFeeRate": "0.001"
        },
        {
            "symbol": "KCS-USDT",
            "takerFeeRate": "0.002",
            "makerFeeRate": "0.0005"
        }
    ]
}

HTTP REQUEST

GET /api/v1/trade-fees

Example

GET /api/v1/trade-fees?symbols=BTC-USDT,KCS-USDT

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Param	Type	Description
symbols	String	Trading pair (optional, you can inquire fee rates of `10` trading pairs each time at most)

RESPONSES

Field	Description
symbol	The unique identity of the trading pair and will not change even if the trading pair is renamed
takerFeeRate	Actual taker fee rate of the trading pair
makerFeeRate	Actual maker fee rate of the trading pair

Trade

Signature is required for this part.

Orders

Place a new order

{
  "orderId": "5bd6e9286d99522a52e458de"
}

You can place two types of orders: limit and market. Orders can only be placed if your account has sufficient funds. Once an order is placed, your account funds will be put on hold for the duration of the order. How much and which funds are put on hold depends on the order type and parameters specified. See the Holds details below.

Please note that the system will frozen the fees from the orders that entered the order book in advance. Read List Fills to learn more.

Before placing an order, please read Get Symbol List to understand the requirements for the quantity parameters for each trading pair.

Do not include extra spaces in JSON strings.

Place Order Limit

The maximum active orders for a single trading pair in one account is 200 (stop orders included).

HTTP Request

POST /api/v1/orders

Example

POST /api/v1/orders

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 45 times/3s.

PARAMETERS

Param	type	Description
clientOid	String	Unique order id created by users to identify their orders, e.g. UUID, with a maximum length of 128 bits.
side	String	buy or sell
symbol	String	a valid trading symbol code. e.g. ETH-BTC
type	String	[Optional] limit or market (default is limit)
remark	String	[Optional] remark for the order, length cannot exceed 100 utf8 characters
stp	String	[Optional] self trade prevention , CN, CO, CB or DC
tradeType	String	[Optional] The type of trading : TRADE（Spot Trade）, MARGIN_TRADE (Margin Trade). Default is TRADE. Note: To improve the system performance and to accelerate order placing and processing, KuCoin has added a new interface for order placing of margin. For traders still using the current interface, please move to the new one as soon as possible. The current one will no longer accept margin orders by May 1st, 2021 (UTC). At the time, KuCoin will notify users via the announcement, please pay attention to it.

LIMIT ORDER PARAMETERS

Param	type	Description
price	String	price per base currency
size	String	amount of base currency to buy or sell
timeInForce	String	[Optional] GTC, GTT, IOC, or FOK (default is GTC), read Time In Force.
cancelAfter	long	[Optional] cancel after n seconds, requires timeInForce to be GTT
postOnly	boolean	[Optional] Post only flag, invalid when timeInForce is IOC or FOK
hidden	boolean	[Optional] Order will not be displayed in the order book
iceberg	boolean	[Optional] Only aportion of the order is displayed in the order book
visibleSize	String	[Optional] The maximum visible size of an iceberg order

MARKET ORDER PARAMETERS

Param	type	Description
size	String	[Optional] Desired amount in base currency
funds	String	[Optional] The desired amount of quote currency to use

It is required that you use one of the two parameters, size or funds.

Advanced Description

SYMBOL

The symbol must match a valid trading symbol.

CLIENT ORDER ID

Generated by yourself, the optional clientOid field must be a unique id (e.g UUID). Only numbers, characters, underline(_) and separator(-) are allowed. The value will be returned in order detail. You can use this field to identify your orders via the public feed. The client_oid is different from the server-assigned order id. Please do not send a repeated client_oid. The length of the client_oid cannot exceed 40 characters. You should record the server-assigned order_id as it will be used for future query order status.

TYPE

The order type you specify may decide whether other optional parameters are required, as well as how your order will be executed by the matching engine. If order type is not specified, the order will be a limit order by default.

Price and size are required to be specified for a limit order. The order will be filled at the price specified or better, depending on the market condition. If a limit order cannot be filled immediately, it will be outstanding in the open order book until matched by another order, or canceled by the user.

A market order differs from a limit order in that the execution price is not guaranteed. Market order, however, provides a way to buy or sell specific size of order without having to specify the price. Market orders will be executed immediately, and no orders will enter the open order book afterwards. Market orders are always considered takers and incur taker fees.

TradeType

The platform currently supports spot (TRADE) and margin (MARGIN_TRADE) . The system will freeze the funds of the specified account according to your parameter type. If this parameter is not specified, the funds in your trade account will be frozen by default. Note: To improve the system performance and to accelerate order placing and processing, KuCoin has added a new interface for order placing of margin. For traders still using the current interface, please move to the new one as soon as possible. The current one will no longer accept margin orders by May 1st, 2021 (UTC). At the time, KuCoin will notify users via the announcement, please pay attention to it.

PRICE

The price must be specified in priceIncrement symbol units. The priceIncrement is the smallest unit of price. For the BTC-USDT symbol, the priceIncrement is 0.00001000. Prices less than 0.00001000 will not be accepted, The price for the placed order should be multiple numbers of priceIncrement, or the system would report an error when you place the order. Not required for market orders.

SIZE

The size must be greater than the baseMinSize for the symbol and no larger than the baseMaxSize. The size must be specified in baseIncrement symbol units. Size indicates the amount of BTC (or base currency) to buy or sell.

FUNDS

The funds field indicates the how much of the quote currency you wish to buy or sell. The size of the funds must be specified in quoteIncrement symbol units and the size of funds in order shall be a positive integer multiple of quoteIncrement, ensuring the funds is greater than the quoteMinSize for the symbol but no larger than the quoteMaxSize.

TIME IN FORCE

Time in force policies provide guarantees about the lifetime of an order. There are four policies: Good Till Canceled GTC, Good Till Time GTT, Immediate Or Cancel IOC, and Fill Or Kill FOK.

GTC Good Till Canceled orders remain open on the book until canceled. This is the default behavior if no policy is specified.

GTT Good Till Time orders remain open on the book until canceled or the allotted cancelAfter is depleted on the matching engine. GTT orders are guaranteed to cancel before any other order is processed after the cancelAfter seconds placed in order book.

IOC Immediate Or Cancel orders instantly cancel the remaining size of the limit order instead of opening it on the book.

FOK Fill Or Kill orders are rejected if the entire size cannot be matched.

Note that self trades belong to match as well. For market orders, using the “TimeInForce” parameter has no effect.

POST ONLY

The post-only flag ensures that the trader always pays the maker fee and provides liquidity to the order book. If any part of the order is going to pay taker fee, the order will be fully rejected.

If a post only order will get executed immediately against the existing orders (except iceberg and hidden orders) in the market, the order will be cancelled.

For post only orders, it will get executed immediately against the iceberg orders and hidden orders in the market. Users placing the post only order will be charged the maker fees and the iceberg and hidden orders will be charged the taker fees.

HIDDEN AND ICEBERG

The Hidden and iceberg Orders are two options in advanced settings (note: the iceberg order is a special form of the hidden order). You may select “Hidden” or “Iceberg” when placing a limit or stop limit order.

A hidden order will enter but not display on the orderbook.

Different from the hidden order, an iceberg order is divided into visible portion and invisible portion. When placing an iceberg order, you need to set the visible size. The minimum visible size is 1/20 of the order size. The minimum visible size shall be greater than the minimum order size, or an error will occur.

In a matching event, the visible portion of an iceberg order will be executed first, and another visible portion will pop up until the order is fully filled.

Note: - The system will charge taker fees for Hidden and iceberg Orders.

If both "Iceberg" and "Hidden" are selected, your order will be filled as an iceberg Order by default.

HOLDS

For limit buy orders, we will hold the needed portion from your funds (price x size of the order). Likewise, on sell orders, we will also hold the amount of assets that you wish to sell. Actual fees are assessed at the time of a trade. If you cancel a partially filled or unfilled order, any remaining funds will be released from being held.

For market buy or sell orders where the funds are specified, the funds amount will be put on hold. If only size is specified, all of your account balance (in the quote account) will be put on hold for the duration of the market order (usually a trivially short time).

SELF-TRADE PREVENTION

Self-Trade Prevention is an option in advanced settings.It is not selected by default. If you specify STP when placing orders, your order won't be matched by another one which is also yours. On the contrary, if STP is not specified in advanced, your order can be matched by another one of your own orders.

Market order is currently not supported for DC. When the timeInForce is set to FOK, the stp flag will be forcely specified as CN.

Market order is currently not supported for DC. When timeInForce is FOK, the stp flag will be forced to be specified as CN.

Flag	Name
DC	Decrease and Cancel
CO	Cancel oldest
CN	Cancel newest
CB	Cancel both

ORDER LIFECYCLE

The HTTP Request will respond when an order is either rejected (insufficient funds, invalid parameters, etc) or received (accepted by the matching engine). A 200 response indicates that the order was received and is active. Active orders may execute immediately (depending on price and market conditions) either partially or fully. A partial execution will put the remaining size of the order in the open state. An order that is filled completely, will go into the done state.

Users listening to streaming market data are encouraged to use the order ID field to identify their received messages in the feed.

PRICE PROTECTION MECHANISM

If there are contra orders against the market/limit orders placed by users in the order book, the system will detect whether the difference between the corresponding market price and the ask/bid price will exceed the threshold (you can request via the API symbol interface).
For limit orders, if the difference exceeds the threshold, the order placement would fail.
For market orders, the order will be partially executed against the existing orders in the market within the threshold and the remaining unfilled part of the order will be canceled immediately. For example: If the threshold is 10%, when a user places a market order to buy 10,000 USDT in the KCS/USDT market (at this time, the current ask price is 1.20000), the system would determine that the final execution price would be 1.40000. As for (1.40000-1.20000)/1.20000=16.7%>10%, the threshold price would be 1.32000. Therefore, this market order will execute with the existing orders offering prices up to 1.32000 and the remaining part of the order will be canceled immediately. Notice: There might be some deviations of the detection. If your order is not fully filled, it may probably be led by the unfilled part of the order exceeding the threshold.

RESPONSES

Field	Description
orderId	The ID of the order

A successful order will be assigned an order ID. A successful order is defined as one that has been accepted by the matching engine.

Place a margin order

{
  "orderId": "5bd6e9286d99522a52e458de",
  "borrowSize":10.2,
  "loanApplyId":"600656d9a33ac90009de4f6f"
}

You can place two types of orders: limit and market. Orders can only be placed if your account has sufficient funds. Once an order is placed, your account funds will be put on hold for the duration of the order. How much and which funds are put on hold depends on the order type and parameters specified. See the Holds details below.

Please note that the system will frozen the fees from the orders that entered the order book in advance. Read List Fills to learn more.

Before placing an order, please read Get Symbol List to understand the requirements for the quantity parameters for each trading pair.

Do not include extra spaces in JSON strings.

Place Order Limit

The maximum active orders for a single trading pair in one account is 200 (stop orders included).

HTTP Request

POST /api/v1/margin/order

API KEY PERMISSIONS

This endpoint requires the Trade permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 45 times/3s.

PARAMETERS

Param	type	Description
clientOid	String	Unique order id created by users to identify their orders, e.g. UUID.
side	String	`buy` or `sell`
symbol	String	a valid trading symbol code. e.g. ETH-BTC
type	String	[Optional] `limit` or `market` (default is `limit`)
remark	String	[Optional] remark for the order, length cannot exceed 100 utf8 characters
stp	String	[Optional] self trade prevention , `CN`, `CO`, `CB` or `DC`
marginModel	String	[Optional] The type of trading, including `cross` (cross mode) and `isolated` (isolated mode). It is set at `cross` by default.
autoBorrow	boolean	[Optional] Auto-borrow to place order. The system will first borrow you funds at the optimal interest rate and then place an order for you. Currently `autoBorrow` parameter only supports `cross` mode, not `isolated` mode. When add this param, stop profit and stop loss are not supported

LIMIT ORDER PARAMETERS

Param	type	Description
price	String	price per base currency
size	String	amount of base currency to buy or sell
timeInForce	String	[Optional] `GTC`, `GTT`, `IOC`, or `FOK` (default is `GTC`), read Time In Force.
cancelAfter	long	[Optional] cancel after `n` seconds, requires `timeInForce` to be `GTT`
postOnly	boolean	[Optional] Post only flag, invalid when `timeInForce` is `IOC` or `FOK`
hidden	boolean	[Optional] Order will not be displayed in the order book
iceberg	boolean	[Optional] Only aportion of the order is displayed in the order book
visibleSize	String	[Optional] The maximum visible size of an iceberg order

MARKET ORDER PARAMETERS

Param	type	Description
size	String	[Optional] Desired amount in base currency
funds	String	[Optional] The desired amount of quote currency to use

It is required that you use one of the two parameters, size or funds. For market buy orders, the funds parameter must be passed.

Advanced Description

MarginMode

There are two modes for API margin trading: cross and isolated, it is set at cross by default.

AutoBorrow

This is the symbol of Auto-Borrow, if it is set to true, the system will automatically borrow the funds required for an order according to the order amount. By default, the symbol is set to false. When your order amount is too large, exceeding the max. borrowing amount via the max. leverage or the risk limit of margin, then you will fail in borrowing and order placing. Currently autoBorrow parameter only supports cross mode, not isolated mode

RESPONSES

Field	Description
orderId	The ID of the order
borrowSize	Borrowed amount. The field is returned only after placing the order under the mode of Auto-Borrow.
loanApplyId	ID of the borrowing response. The field is returned only after placing the order under the mode of Auto-Borrow.

A successful order will be assigned an orderId. A successful order is defined as one that has been accepted by the matching engine.

Place Bulk Orders

//response
{
  "data": [
    {
      "symbol": "KCS-USDT",
      "type": "limit",
      "side": "buy",
      "price": "0.01",
      "size": "0.01",
      "funds": null,
      "stp": "",
      "stop": "",
      "stopPrice": null,
      "timeInForce": "GTC",
      "cancelAfter": 0,
      "postOnly": false,
      "hidden": false,
      "iceberge": false,
      "iceberg": false,
      "visibleSize": null,
      "channel": "API",
      "id": "611a6a309281bc000674d3c0",
      "status": "success",
      "failMsg": null,
      "clientOid": "552a8a0b7cb04354be8266f0e202e7e9"
    },
    {
      "symbol": "KCS-USDT",
      "type": "limit",
      "side": "buy",
      "price": "0.01",
      "size": "0.01",
      "funds": null,
      "stp": "",
      "stop": "",
      "stopPrice": null,
      "timeInForce": "GTC",
      "cancelAfter": 0,
      "postOnly": false,
      "hidden": false,
      "iceberge": false,
      "iceberg": false,
      "visibleSize": null,
      "channel": "API",
      "id": "611a6a309281bc000674d3c1",
      "status": "success",
      "failMsg": null,
      "clientOid": "bd1e95e705724f33b508ed270888a4a9"
    }
  ]
}

Request via this endpoint to place 5 orders at the same time. The order type must be a limit order of the same symbol. The interface currently only supports spot trading

HTTP Request

POST /api/v1/orders/multi

Example

//request
{
  "symbol": "KCS-USDT",
  "orderList": [
    {
      "clientOid": "3d07008668054da6b3cb12e432c2b13a",
      "side": "buy",
      "type": "limit",
      "price": "0.01",
      "size": "0.01"
    },
    {
      "clientOid": "37245dbe6e134b5c97732bfb36cd4a9d",
      "side": "buy",
      "type": "limit",
      "price": "0.01",
      "size": "0.01"
    }
  ]
}

POST /api/v1/orders/multi

API KEY PERMISSIONS

This endpoint requires the Trade permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 3 times/3s.

PARAMETERS

Param	type	Description
clientOid	String	Unique order id created by users to identify their orders, e.g. UUID.
side	String	buy or sell
symbol	String	a valid trading symbol code. e.g. ETH-BTC
type	String	[Optional] only limit (default is limit)
remark	String	[Optional] remark for the order, length cannot exceed 100 utf8 characters
stop	String	[Optional] Either loss or entry. Requires stopPrice to be defined
stopPrice	String	[Optional] Need to be defined if stop is specified.
stp	String	[Optional] self trade prevention , CN, CO, CB or DC
tradeType	String	[Optional] Default is TRADE
price	String	price per base currency
size	String	amount of base currency to buy or sell
timeInForce	String	[Optional] GTC, GTT, IOC, or FOK (default is GTC), read Time In Force.
cancelAfter	long	[Optional] cancel after n seconds, requires timeInForce to be GTT
postOnly	boolean	[Optional] Post only flag, invalid when timeInForce is IOC or FOK
hidden	boolean	[Optional] Order will not be displayed in the order book
iceberg	boolean	[Optional] Only aportion of the order is displayed in the order book
visibleSize	String	[Optional] The maximum visible size of an iceberg order

RESPONSES

Field	Description
status	status (success, fail)
failMsg	the cause of failure

Cancel an order

{
     "cancelledOrderIds": [
      "5bd6e9286d99522a52e458de"   //orderId
    ]
}

Request via this endpoint to cancel a single order previously placed.

HTTP REQUEST

DELETE /api/v1/orders/{orderId}

Example

DELETE /api/v1/orders/5bd6e9286d99522a52e458de

API KEY PERMISSIONS

This endpoint requires the Trade permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 60 times/3s.

PARAMETERS

Param	Type	Description
orderId	String	Order ID, unique ID of the order.

RESPONSES

Field	Description
orderId	Unique ID of the cancelled order

CANCEL REJECT

If the order could not be canceled (already filled or previously canceled, etc), then an error response will indicate the reason in the message field.

Cancel Single Order by clientOid

{
  "cancelledOrderId": "5f311183c9b6d539dc614db3",
  "clientOid": "6d539dc614db3"
}

Request via this interface to cancel an order via the clientOid.

HTTP REQUEST

DELETE /api/v1/order/client-order/{clientOid}

Example

DELETE /api/v1/order/client-order/6d539dc614db3

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
clientOid	String	Unique order id created by users to identify their orders

RESPONSES

Field	Description
cancelledOrderId	Order ID of cancelled order
clientOid	Unique order id created by users to identify their orders

Cancel all orders

{
    "cancelledOrderIds": [

        "5c52e11203aa677f33e493fb",  //orderId
        "5c52e12103aa677f33e493fe",
        "5c52e12a03aa677f33e49401",
        "5c52e1be03aa677f33e49404",
        "5c52e21003aa677f33e49407",
        "5c6243cb03aa67580f20bf2f",
        "5c62443703aa67580f20bf32",
        "5c6265c503aa676fee84129c",
        "5c6269e503aa676fee84129f",
        "5c626b0803aa676fee8412a2"
    ]
}

Request via this endpoint to cancel all open orders. The response is a list of ids of the canceled orders.

HTTP REQUEST

DELETE /api/v1/orders

Example

DELETE /api/v1/orders?symbol=ETH-BTC&tradeType=TRADE
DELETE /api/v1/orders?symbol=ETH-BTC&tradeType=MARGIN_ISOLATED_TRADE

API KEY PERMISSIONS

This endpoint requires the Trade permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 3 times/3s.

PARAMETERS

Param	Type	Description
symbol	String	[Optional] symbol, cancel the orders for the specified trade pair.
tradeType	String	[Optional] the type of trading :`TRADE`(Spot Trading), `MARGIN_TRADE`(Cross Margin Trading), `MARGIN_ISOLATED_TRADE`(Isolated Margin Trading), and the default is `TRADE` to cancel the spot trading orders.

RESPONSES

Field	Description
orderId	Order ID, unique identifier of an order.

List Orders

{
    "currentPage": 1,
    "pageSize": 1,
    "totalNum": 153408,
    "totalPage": 153408,
    "items": [
        {
            "id": "5c35c02703aa673ceec2a168",   //orderid
            "symbol": "BTC-USDT",   //symbol
            "opType": "DEAL",      // operation type: DEAL
            "type": "limit",       // order type,e.g. limit,market,stop_limit.
            "side": "buy",         // transaction direction,include buy and sell
            "price": "10",         // order price
            "size": "2",           // order quantity
            "funds": "0",          // order funds
            "dealFunds": "0.166",  // deal funds
            "dealSize": "2",       // deal quantity
            "fee": "0",            // fee
            "feeCurrency": "USDT", // charge fee currency
            "stp": "",             // self trade prevention,include CN,CO,DC,CB
            "stop": "",            // stop type
            "stopTriggered": false,  // stop order is triggered
            "stopPrice": "0",      // stop price
            "timeInForce": "GTC",  // time InForce,include GTC,GTT,IOC,FOK
            "postOnly": false,     // postOnly
            "hidden": false,       // hidden order
            "iceberg": false,      // iceberg order
            "visibleSize": "0",    // display quantity for iceberg order
            "cancelAfter": 0,      // cancel orders time，requires timeInForce to be GTT
            "channel": "IOS",      // order source
            "clientOid": "",       // user-entered order unique mark
            "remark": "",          // remark
            "tags": "",            // tag order source        
            "isActive": false,     // status before unfilled or uncancelled
            "cancelExist": false,   // order cancellation transaction record
            "createdAt": 1547026471000,  // create time
            "tradeType": "TRADE"
        }
     ]
 }

Request via this endpoint to get your current order list. Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page.

HTTP REQUEST

GET /api/v1/orders

Example

GET /api/v1/orders?status=active
GET /api/v1/orders?status=active?tradeType=MARGIN_ISOLATED_TRADE

API KEY PERMISSIONS

This endpoint requires the General permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 30 times/3s.

PARAMETERS

You can pinpoint the results with the following query paramaters.

Param	Type	Description
status	String	[Optional] `active` or `done`(`done` as default), Only list orders with a specific status .
symbol	String	[Optional] Only list orders for a specific symbol.
side	String	[Optional] `buy` or `sell`
type	String	[Optional] `limit`, `market`, `limit_stop` or `market_stop`
tradeType	String	The type of trading:`TRADE`-Spot Trading(`TRADE` as default), `MARGIN_TRADE`-Cross Margin Trading, `MARGIN_ISOLATED_TRADE`-Isolated Margin Trading.
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)

RESPONSES

Field	Description
id	Order ID, the ID of an order.
symbol	symbol
opType	Operation type: DEAL
type	order type
side	transaction direction,include buy and sell
price	order price
size	order quantity
funds	order funds
dealFunds	executed size of funds
dealSize	executed quantity
fee	fee
feeCurrency	charge fee currency
stp	self trade prevention,include `CN`,`CO`,`DC`,`CB`
stop	stop type, include entry and loss
stopTriggered	stop order is triggered or not
stopPrice	stop price
timeInForce	time InForce,include `GTC`,`GTT`,`IOC`,`FOK`
postOnly	postOnly
hidden	hidden order
iceberg	iceberg order
visibleSize	displayed quantity for iceberg order
cancelAfter	cancel orders time，requires timeInForce to be `GTT`
channel	order source
clientOid	user-entered order unique mark
remark	remark
tags	tag order source
isActive	order status, true and false. If true, the order is active, if false, the order is fillled or cancelled
cancelExist	order cancellation transaction record
createdAt	create time
tradeType	The type of trading

ORDER STATUS AND SETTLEMENT

Any order on the exchange order book is in active status. Orders removed from the order book will be marked with done status. After an order becomes done, there may be a few milliseconds latency before it’s fully settled.

You can check the orders in any status. If the status parameter is not specified, orders of done status will be returned by default.

When you query orders in active status, there is no time limit. However, when you query orders in done status, the start and end time range cannot exceed 7* 24 hours. An error will occur if the specified time window exceeds the range. If you specify the end time only, the system will automatically calculate the start time as end time minus 7*24 hours, and vice versa.

The history for cancelled orders is only kept for one month. You will not be able to query for cancelled orders that have happened more than a month ago.

POLLING

For high-volume trading, it is highly recommended that you maintain your own list of open orders and use one of the streaming market data feeds to keep it updated. You should poll the open orders endpoint to obtain the current state of any open order.

Recent Orders

{
    "currentPage": 1,
    "pageSize": 1,
    "totalNum": 153408,
    "totalPage": 153408,
    "items": [
        {
            "id": "5c35c02703aa673ceec2a168",
            "symbol": "BTC-USDT",
            "opType": "DEAL",
            "type": "limit",
            "side": "buy",
            "price": "10",
            "size": "2",
            "funds": "0",
            "dealFunds": "0.166",
            "dealSize": "2",
            "fee": "0",
            "feeCurrency": "USDT",
            "stp": "",
            "stop": "",
            "stopTriggered": false,
            "stopPrice": "0",
            "timeInForce": "GTC",
            "postOnly": false,
            "hidden": false,
            "iceberg": false,
            "visibleSize": "0",
            "cancelAfter": 0,
            "channel": "IOS",
            "clientOid": "",
            "remark": "",
            "tags": "",
            "isActive": false,
            "cancelExist": false,
            "createdAt": 1547026471000,
            "tradeType": "TRADE"
        }
    ]
}

Request via this endpoint to get 1000 orders in the last 24 hours. Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page.

HTTP REQUEST

GET /api/v1/limit/orders

Example

GET /api/v1/limit/orders

API KEY PERMISSIONS

This endpoint requires the "General" permission.

RESPONSES

Field	Description
orderId	Order ID, unique identifier of an order.
symbol	symbol
opType	Operation type: DEAL
type	order type, e.g. limit, market, stop_limit
side	transaction direction,include buy and sell
price	order price
size	order quantity
funds	order funds
dealFunds	deal funds
dealSize	deal quantity
fee	fee
feeCurrency	charge fee currency
stp	self trade prevention,include CN,CO,DC,CB
stop	stop type, include entry and loss
stopTriggered	stop order is triggered
stopPrice	stop price
timeInForce	time InForce,include GTC,GTT,IOC,FOK
postOnly	postOnly
hidden	hidden order
iceberg	iceberg order
visibleSize	display quantity for iceberg order
cancelAfter	cancel orders time，requires timeInForce to be GTT
channel	order source
clientOid	user-entered order unique mark
remark	remark
tags	tag order source
isActive	order status, true and false. If true, the order is active, if false, the order is fillled or cancelled
cancelExist	order cancellation transaction record
createdAt	create time
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).

Get an order

{
    "id": "5c35c02703aa673ceec2a168",
    "symbol": "BTC-USDT",
    "opType": "DEAL",
    "type": "limit",
    "side": "buy",
    "price": "10",
    "size": "2",
    "funds": "0",
    "dealFunds": "0.166",
    "dealSize": "2",
    "fee": "0",
    "feeCurrency": "USDT",
    "stp": "",
    "stop": "",
    "stopTriggered": false,
    "stopPrice": "0",
    "timeInForce": "GTC",
    "postOnly": false,
    "hidden": false,
    "iceberg": false,
    "visibleSize": "0",
    "cancelAfter": 0,
    "channel": "IOS",
    "clientOid": "",
    "remark": "",
    "tags": "",
    "isActive": false,
    "cancelExist": false,
    "createdAt": 1547026471000,
    "tradeType": "TRADE"
 }

Request via this endpoint to get a single order info by order ID.

HTTP REQUEST

GET /api/v1/orders/{order-id}

Example

GET /api/v1/orders/5c35c02703aa673ceec2a168

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
orderId	String	Order ID, unique identifier of an order, obtained via the List orders.

RESPONSES

Field	Description
orderId	Order ID, the ID of an order
symbol	symbol
opType	operation type,deal is pending order,cancel is cancel order
type	order type,e.g. limit,market,stop_limit.
side	transaction direction,include buy and sell
price	order price
size	order quantity
funds	order funds
dealFunds	deal funds
dealSize	deal quantity
fee	fee
feeCurrency	charge fee currency
stp	self trade prevention,include CN,CO,DC,CB
stop	stop type, include entry and loss
stopTriggered	stop order is triggered
stopPrice	stop price
timeInForce	time InForce,include GTC,GTT,IOC,FOK
postOnly	postOnly
hidden	hidden order
iceberg	iceberg order
visibleSize	display quantity for iceberg order
cancelAfter	cancel orders time，requires timeInForce to be GTT
channel	order source
clientOid	user-entered order unique mark
remark	remark
tags	tag order source
isActive	order status, true and false. If true, the order is active, if false, the order is fillled or cancelled
cancelExist	order cancellation transaction record
createdAt	create time
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).

Get Single Active Order by clientOid

{
  "id": "5f3113a1c9b6d539dc614dc6",
  "symbol": "KCS-BTC",
  "opType": "DEAL",
  "type": "limit",
  "side": "buy",
  "price": "0.00001",
  "size": "1",
  "funds": "0",
  "dealFunds": "0",
  "dealSize": "0",
  "fee": "0",
  "feeCurrency": "BTC",
  "stp": "",
  "stop": "",
  "stopTriggered": false,
  "stopPrice": "0",
  "timeInForce": "GTC",
  "postOnly": false,
  "hidden": false,
  "iceberg": false,
  "visibleSize": "0",
  "cancelAfter": 0,
  "channel": "API",
  "clientOid": "6d539dc614db312",
  "remark": "",
  "tags": "",
  "isActive": true,
  "cancelExist": false,
  "createdAt": 1597051810000,
  "tradeType": "TRADE"
}

Request via this interface to check the information of a single active order via clientOid. The system will prompt that the order does not exists if the order does not exist or has been settled.

HTTP REQUEST

GET /api/v1/order/client-order/{clientOid}

Example

GET /api/v1/order/client-order/6d539dc614db312

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
clientOid	String	Unique order id created by users to identify their orders

RESPONSES

Field	Description
id	Order ID, the ID of an order
symbol	symbol
opType	operation type,deal is pending order,cancel is cancel order
type	order type,e.g. limit,market,stop_limit.
side	transaction direction,include buy and sell
price	order price
size	order quantity
funds	order funds
dealFunds	deal funds
dealSize	deal quantity
fee	fee
feeCurrency	charge fee currency
stp	self trade prevention,include CN,CO,DC,CB
stop	stop type, include entry and loss
stopTriggered	stop order is triggered
stopPrice	stop price
timeInForce	time InForce,include GTC,GTT,IOC,FOK
postOnly	postOnly
hidden	hidden order
iceberg	iceberg order
visibleSize	display quantity for iceberg order
cancelAfter	cancel orders time，requires timeInForce to be GTT
channel	order source
clientOid	user-entered order unique mark
remark	remark
tags	tag order source
isActive	order status, true and false. If true, the order is active, if false, the order is fillled or cancelled
cancelExist	order cancellation transaction record
createdAt	create time
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).

Fills

List Fills

{
    "currentPage":1,
    "pageSize":1,
    "totalNum":251915,
    "totalPage":251915,
    "items":[
        {
            "symbol":"BTC-USDT",    //symbol
            "tradeId":"5c35c02709e4f67d5266954e",   //trade id
            "orderId":"5c35c02703aa673ceec2a168",   //order id
            "counterOrderId":"5c1ab46003aa676e487fa8e3",  //counter order id
            "side":"buy",   //transaction direction,include buy and sell
            "liquidity":"taker",  //include taker and maker
            "forceTaker":true,  //forced to become taker
            "price":"0.083",   //order price
            "size":"0.8424304",  //order quantity
            "funds":"0.0699217232",  //order funds
            "fee":"0",  //fee
            "feeRate":"0",  //fee rate
            "feeCurrency":"USDT",  // charge fee currency
            "stop":"",        // stop type
            "type":"limit",  // order type,e.g. limit,market,stop_limit.
            "createdAt":1547026472000,  //time
            "tradeType": "TRADE"
        }
    ]
}

Request via this endpoint to get the recent fills.

Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page.

HTTP REQUEST

GET /api/v1/fills

Example

GET /api/v1/fills

API KEY PERMISSIONS

This endpoint requires the "General" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 9 times/3s.

PARAMETERS

You can request fills for specific orders using query parameters.

Param	Type	Description
orderId	String	[Optional] Limit the list of fills to this orderId（If you specify orderId, ignore other conditions）
symbol	String	[Optional] Limit the list of fills to this symbol
side	String	[Optional] buy or sell
type	String	[Optional] limit, market, limit_stop or market_stop
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)
tradeType	String	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading), TRADE as default.

RESPONSES

Field	Description
symbol	symbol.
tradeId	trade id, it is generated by Matching engine.
orderId	Order ID, unique identifier of an order.
counterOrderId	counter order id.
side	transaction direction,include buy and sell.
price	order price
size	order quantity
funds	order funds
type	order type,e.g. limit,market,stop_limit.
fee	fee
feeCurrency	charge fee currency
stop	stop type, include entry and loss
liquidity	include taker and maker
forceTaker	forced to become taker, include true and false
createdAt	create time
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).

Data time range

The system allows you to retrieve data up to one week (start from the last day by default). If the time period of the queried data exceeds one week (time range from the start time to end time exceeded 7*24 hours), the system will prompt to remind you that you have exceeded the time limit. If you only specified the start time, the system will automatically calculate the end time (end time = start time + 7 * 24 hours). On the contrary, if you only specified the end time, the system will calculate the start time (start time= end time - 7 * 24 hours) the same way.

Settlement

The settlement contains two parts: - Transactional settlement - Fee settlement

After an order is matched, the transactional and fee settlement data will be updated in the data store. Once the data is updated, the system would enable the settlement process and will deduct the fees from your pre-frozen assets. After that, the currency will be transferred to the account of the user.

Fees

Orders on KuCoin platform are classified into two types， taker and maker. A taker order matches other resting orders on the exchange order book, and gets executed immediately after order entry. A maker order, on the contrary, stays on the exchange order book and awaits to be matched. Taker orders will be charged taker fees, while maker orders will receive maker rebates. Please note that market orders, iceberg orders and hidden orders are always charged taker fees.

The system will pre-freeze a predicted taker fee when you place an order.The liquidity field indicates if the fill was charged taker or maker fees.

With the leading matching engine system in the market, users placing orders on KuCoin platform are classified into two types: taker and maker. Takers, as the taker in the market, would be charged with taker fees; while makers as the maker in the market, would be charged with less fees than the taker, or even get maker fees from KuCoin （The exchange platform would compensate the transaction fees for you）.

After placing orders on the KuCoin platform, to ensure the execution of these orders, the system would pre-freeze your assets based on the taker fee charges (because the system could not predict the order types you may choose). Please be noted that the system would deduct the fees from the orders entered the orderbook in advance.

If your order is market order, the system would charge taker fees from you.

If your order is limit order and is immediately matched and executed, the system would charge taker fees from you. On the contrary, if the order or part or your order is not executed immediately and enters into the order book, the system would charge maker fees from you if it is executed before being cancelled

After the order is executed and when the left order funds is 0, the transaction is completed. If the remaining funds is not sufficient to support the minimum product (min.: 0.00000001), then the left part in the order would be cancelled.

If your order is a maker order, the system would return the left pre-frozen taker fees to you.

Notice:

For a hidden/iceberg order, if it is not executed immediately and becomes a maker order, the system would still charge taker fees from you.
Post Only order will charge you maker fees. If a post only order would get executed immediately against the existing orders (except iceberg and hidden orders) in the market, the order will be cancelled. If the post only order will execute against an iceberg/hidden order immediately, you will get the maker fees.

For example:

Take BTC/USDT as the trading pair, if you plan to buy 1 BTC in market price, suppose the fee charge is 0.1% and the data on the order book is as follows:

Price（USDT）	Size（BTC）	Side
4200.00	0.18412309	sell
4015.60	0.56849308	sell
4011.32	0.24738383	sell
3995.64	0.84738383	buy
3988.60	0.20484000	buy
3983.85	1.37584908	buy

When you placed a buy order in market price, the order would be executed immediately. The transaction detail is as follows:

Price（USDT）	Size（BTC）	Fee（BTC）
4011.32	0.24738383	0.00024738
4015.60	0.56849308	0.00056849
4200.00	0.18312409	0.00018312

Recent Fills

{
    "code":"200000",
    "data":[
        {
            "counterOrderId":"5db7ee769797cf0008e3beea",
            "createdAt":1572335233000,
            "fee":"0.946357371456",
            "feeCurrency":"USDT",
            "feeRate":"0.001",
            "forceTaker":true,
            "funds":"946.357371456",
            "liquidity":"taker",
            "orderId":"5db7ee805d53620008dce1ba",
            "price":"9466.8",
            "side":"buy",
            "size":"0.09996592",
            "stop":"",
            "symbol":"BTC-USDT",
            "tradeId":"5db7ee8054c05c0008069e21",
            "tradeType":"MARGIN_TRADE",
            "type":"market"
        },
        {
            "counterOrderId":"5db7ee4b5d53620008dcde8e",
            "createdAt":1572335207000,
            "fee":"0.94625",
            "feeCurrency":"USDT",
            "feeRate":"0.001",
            "forceTaker":true,
            "funds":"946.25",
            "liquidity":"taker",
            "orderId":"5db7ee675d53620008dce01e",
            "price":"9462.5",
            "side":"sell",
            "size":"0.1",
            "stop":"",
            "symbol":"BTC-USDT",
            "tradeId":"5db7ee6754c05c0008069e03",
            "tradeType":"MARGIN_TRADE",
            "type":"market"
        },
        {
            "counterOrderId":"5db69aa4688933000aab8114",
            "createdAt":1572248229000,
            "fee":"1.882148318525",
            "feeCurrency":"USDT",
            "feeRate":"0.001",
            "forceTaker":false,
            "funds":"1882.148318525",
            "liquidity":"maker",
            "orderId":"5db69a9c4e6d020008f03275",
            "price":"9354.5",
            "side":"sell",
            "size":"0.20120245",
            "stop":"",
            "symbol":"BTC-USDT",
            "tradeId":"5db69aa477d8de0008c1efac",
            "tradeType":"MARGIN_TRADE",
            "type":"limit"
        }
    ]
}

Request via this endpoint to get a list of 1000 fills in the last 24 hours.

HTTP REQUEST

GET /api/v1/limit/fills

Example

GET /api/v1/limit/fills

API KEY PERMISSIONS

This endpoint requires the "General" permission.

RESPONSES

Field	Description
symbol	symbol
tradeId	trade id, it is generated by Matching engine.
orderId	Order ID, unique identifier of an order.
counterOrderId	counter order id.
side	transaction direction,include buy and sell.
price	order price
size	order quantity
funds	order funds
type	order type,e.g. limit,market,stop_limit.
fee	fee
feeCurrency	charge fee currency
stop	stop type, include entry and loss
liquidity	include taker and maker
forceTaker	forced to become taker, include true and false
createdAt	create time
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).

Stop Order

A stop order is an order to buy or sell the specified amount of cryptos at the last traded price or pre-specified limit price once the order has traded at or through a pre-specified stopPrice. The order will be executed by the highest price first. For orders of the same price, the order will be executed in time priority.

stop: 'loss': Triggers when the last trade price changes to a value at or below the stopPrice.

stop: 'entry': Triggers when the last trade price changes to a value at or above the stopPrice.

The last trade can be found in the latest match message. Note that not all match messages may be received due to dropped messages.

The last trade price is the last price at which an order was filled. This price can be found in the latest match message. Note that not all match messages may be received due to dropped messages.

Note that when triggered, stop orders execute as either market or limit orders, depending on the type.

When placing a stop loss order, the system will not pre-freeze the assets in your account for the order. When you are going to place a stop market order, we recommend you to specify the funds for the order when trading.

Place a new order

{
  "orderId": "vs8hoo8kpkmklv4m0038lql0"
}

Do not include extra spaces in JSON strings in request body.

Limitation

The maximum untriggered stop orders for a single trading pair in one account is 20.

HTTP Request

POST /api/v1/stop-order

Example

POST /api/v1/stop-order

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

Request Body Parameters

Param	Type	Description
clientOid	String	Unique order id created by users to identify their orders, e.g. UUID, with a maximum length of 128 bits.
side	String	buy or sell
symbol	String	a valid trading symbol code. e.g. ETH-BTC
type	String	[Optional] limit or market, the default is limit
remark	String	[Optional] remark for the order, length cannot exceed 100 utf8 characters
stop	String	[Optional] Either loss or entry, the default is loss. Requires stopPrice to be defined.
stopPrice	String	trigger price.
stp	String	[Optional] self trade prevention , CN, CO, CB , DC (limit order does not support DC)
tradeType	String	[Optional] The type of trading : TRADE（Spot Trade）, MARGIN_TRADE (Margin Trade). Default is TRADE

LIMIT ORDER PARAMETERS

Param	type	Description
price	String	price per base currency
size	String	amount of base currency to buy or sell
timeInForce	String	[Optional] GTC, GTT, IOC, or FOK (default is GTC), read Time In Force.
cancelAfter	long	[Optional] cancel after n seconds, requires timeInForce to be GTT
postOnly	boolean	[Optional] Post only flag, invalid when timeInForce is IOC or FOK
hidden	boolean	[Optional] Order will not be displayed in the order book
iceberg	boolean	[Optional] Only aportion of the order is displayed in the order book
visibleSize	String	[Optional] The maximum visible size of an iceberg order

MARKET ORDER PARAMETERS

Param	type	Description
size	String	[Optional] Desired amount in base currency
funds	String	[Optional] The desired amount of quote currency to use

It is required that you use one of the two parameters, size or funds.

RESPONSES

Field	Description
orderId	The ID of the order

A successful order will be assigned an order ID. A successful order is defined as one that has been accepted by the matching engine.

Cancel an Order

{
  "cancelledOrderIds": [
    "611477889281bc0006d68aea"
  ]
}

Request via this endpoint to cancel a single stop order previously placed.

You will receive cancelledOrderIds field once the system has received the cancellation request. The cancellation request will be processed by the matching engine in sequence. To know if the request is processed (successfully or not), you may check the order status or the update message from the pushes.

HTTP Request

DELETE /api/v1/stop-order/{orderId}

Example

DELETE /api/v1/stop-order/5bd6e9286d99522a52e458de

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
orderId	String	Order ID, unique ID of the order.

RESPONSES

Field	Description
cancelledOrderIds	cancelled order ids

CANCEL REJECT

If the order could not be canceled (already filled or previously canceled, etc), then an error response will indicate the reason in the message field.

Cancel Orders

{
  "cancelledOrderIds": [
    "vs8hoo8m4751f5np0032t7gk",
    "vs8hoo8m4758qjjp0037mslk",
    "vs8hoo8prp98qjjp0037q9gb",
    "vs8hoo8prp91f5np00330k6p"
  ]
}

Request via this interface to cancel a batch of stop orders.

HTTP Request

DELETE /api/v1/stop-order/cancel

Example

DELETE /api/v1/stop-order/cancel?symbol=ETH-BTC&tradeType=TRADE&orderIds=5bd6e9286d99522a52e458de,5bd6e9286d99522a52e458df

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Parm	Type	Decription
symbol	String	[Optional] symbol
tradeType	String	[Optional] The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).
orderIds	String	[Optional] Comma seperated order IDs.

RESPONSES

Field	Decription
cancelledOrderIds	cancelled order ids

Get Single Order Info

{
  "id": "vs8hoo8q2ceshiue003b67c0",
  "symbol": "KCS-USDT",
  "userId": "60fe4956c43cbc0006562c2c",
  "status": "NEW",
  "type": "limit",
  "side": "buy",
  "price": "0.01000000000000000000",
  "size": "0.01000000000000000000",
  "funds": null,
  "stp": null,
  "timeInForce": "GTC",
  "cancelAfter": -1,
  "postOnly": false,
  "hidden": false,
  "iceberg": false,
  "visibleSize": null,
  "channel": "API",
  "clientOid": "40e0eb9efe6311eb8e58acde48001122",
  "remark": null,
  "tags": null,
  "orderTime": 1629098781127530345,
  "domainId": "kucoin",
  "tradeSource": "USER",
  "tradeType": "TRADE",
  "feeCurrency": "USDT",
  "takerFeeRate": "0.00200000000000000000",
  "makerFeeRate": "0.00200000000000000000",
  "createdAt": 1629098781128,
  "stop": "loss",
  "stopTriggerTime": null,
  "stopPrice": "10.00000000000000000000"
}

Request via this interface to get a stop order information via the order ID.

HTTP Request

GET /api/v1/stop-order/{orderId}

Example

GET /api/v1/stop-order/5c35c02703aa673ceec2a168

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Parm	Type	Decription
orderId	String	Order ID

RESPONSES

Field	Description
id	Order ID, the ID of an order.
symbol	Symbol
userId	User ID
status	Order status, include NEW, TRIGGERED
type	Order type
side	transaction direction,include buy and sell
price	order price
size	order quantity
funds	order funds
stp	self trade prevention
timeInForce	time InForce,include GTC,GTT,IOC,FOK
cancelAfter	cancel orders after n seconds，requires timeInForce to be GTT
postOnly	postOnly
hidden	hidden order
iceberg	Iceberg order
visibleSize	displayed quantity for iceberg order
channel	order source
clientOid	user-entered order unique mark
remark	Remarks
tags	tag order source
orderTime	Time of place a stop order, accurate to nanoseconds
domainId	domainId, e.g: kucoin
tradeSource	trade source: USER（Order by user）, MARGIN_SYSTEM（Order by margin system）
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).
feeCurrency	The currency of the fee
takerFeeRate	Fee Rate of taker
makerFeeRate	Fee Rate of maker
createdAt	order creation time
stop	Stop order type, include loss and entry
stopTriggerTime	The trigger time of the stop order
stopPrice	stop price

List Stop Orders

{
  "currentPage": 1,
  "pageSize": 50,
  "totalNum": 1,
  "totalPage": 1,
  "items": [
    {
      "id": "vs8hoo8kqjnklv4m0038lrfq",
      "symbol": "KCS-USDT",
      "userId": "60fe4956c43cbc0006562c2c",
      "status": "NEW",
      "type": "limit",
      "side": "buy",
      "price": "0.01000000000000000000",
      "size": "0.01000000000000000000",
      "funds": null,
      "stp": null,
      "timeInForce": "GTC",
      "cancelAfter": -1,
      "postOnly": false,
      "hidden": false,
      "iceberg": false,
      "visibleSize": null,
      "channel": "API",
      "clientOid": "404814a0fb4311eb9098acde48001122",
      "remark": null,
      "tags": null,
      "orderTime": 1628755183702150167,
      "domainId": "kucoin",
      "tradeSource": "USER",
      "tradeType": "TRADE",
      "feeCurrency": "USDT",
      "takerFeeRate": "0.00200000000000000000",
      "makerFeeRate": "0.00200000000000000000",
      "createdAt": 1628755183704,
      "stop": "loss",
      "stopTriggerTime": null,
      "stopPrice": "10.00000000000000000000"
    }
  ]
}

Request via this endpoint to get your current untriggered stop order list. Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page.

HTTP REQUEST

GET /api/v1/stop-order

Example

GET /api/v1/stop-order

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

You can pinpoint the results with the following query paramaters.

Param	Type	Description
symbol	String	[Optional] Only list orders for a specific symbol.
side	String	[Optional] buy or sell
type	String	[Optional] limit, market, limit_stop or market_stop
tradeType	String	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).
startAt	long	[Optional] Start time (milisecond)
endAt	long	[Optional] End time (milisecond)
currentPage	Int	[Optional] current page
orderIds	String	[Optional] comma seperated order ID list
pageSize	Int	[Optional] page size

RESPONSES

Field	Description
id	Order ID, the ID of an order.
symbol	Symbol
userId	User ID
status	Order status, include NEW, TRIGGERED
type	Order type
side	transaction direction,include buy and sell
price	order price
size	order quantity
funds	order funds
stp	self trade prevention
timeInForce	time InForce,include GTC,GTT,IOC,FOK
cancelAfter	cancel orders after n seconds，requires timeInForce to be GTT
postOnly	postOnly
hidden	hidden order
iceberg	Iceberg order
visibleSize	displayed quantity for iceberg order
channel	order source
clientOid	user-entered order unique mark
remark	Remarks
tags	tag order source
orderTime	Time of place a stop order, accurate to nanoseconds
domainId	domainId, e.g: kucoin
tradeSource	trade source: USER（Order by user）, MARGIN_SYSTEM（Order by margin system）
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).
feeCurrency	The currency of the fee
takerFeeRate	Fee Rate of taker
makerFeeRate	Fee Rate of maker
createdAt	order creation time
stop	Stop order type, include loss and entry
stopTriggerTime	The trigger time of the stop order
stopPrice	stop price

Get Single Order by clientOid

[
  {
    "id": "vs8hoo8os561f5np0032vngj",
    "symbol": "KCS-USDT",
    "userId": "60fe4956c43cbc0006562c2c",
    "status": "NEW",
    "type": "limit",
    "side": "buy",
    "price": "0.01000000000000000000",
    "size": "0.01000000000000000000",
    "funds": null,
    "stp": null,
    "timeInForce": "GTC",
    "cancelAfter": -1,
    "postOnly": false,
    "hidden": false,
    "iceberg": false,
    "visibleSize": null,
    "channel": "API",
    "clientOid": "2b700942b5db41cebe578cff48960e09",
    "remark": null,
    "tags": null,
    "orderTime": 1629020492834532568,
    "domainId": "kucoin",
    "tradeSource": "USER",
    "tradeType": "TRADE",
    "feeCurrency": "USDT",
    "takerFeeRate": "0.00200000000000000000",
    "makerFeeRate": "0.00200000000000000000",
    "createdAt": 1629020492837,
    "stop": "loss",
    "stopTriggerTime": null,
    "stopPrice": "1.00000000000000000000"
  }
]

Request via this interface to get a stop order information via the clientOid.

HTTP Request

GET /api/v1/stop-order/queryOrderByClientOid

Example

GET /api/v1/stop-order/queryOrderByClientOid?symbol=BTC-USDT&clientOid=9823jnfda923a

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
clientOid	String	Unique order id created by users to identify their orders
symbol	String	[Optional] Only list orders for a specific symbol.

RESPONSES

Field	Description
id	Order ID, the ID of an order.
symbol	Symbol
userId	User ID
status	Order status, include NEW, TRIGGERED
type	Order type
side	transaction direction,include buy and sell
price	order price
size	order quantity
funds	order funds
stp	self trade prevention
timeInForce	time InForce,include GTC,GTT,IOC,FOK
cancelAfter	cancel orders after n seconds，requires timeInForce to be GTT
postOnly	postOnly
hidden	hidden order
iceberg	Iceberg order
visibleSize	displayed quantity for iceberg order
channel	order source
clientOid	user-entered order unique mark
remark	Remarks
tags	tag order source
orderTime	Time of place a stop order, accurate to nanoseconds
domainId	domainId, e.g: kucoin
tradeSource	trade source: USER（Order by user）, MARGIN_SYSTEM（Order by margin system）
tradeType	The type of trading : TRADE（Spot Trading）, MARGIN_TRADE (Margin Trading).
feeCurrency	The currency of the fee
takerFeeRate	Fee Rate of taker
makerFeeRate	Fee Rate of maker
createdAt	order creation time
stop	Stop order type, include loss and entry
stopTriggerTime	The trigger time of the stop order
stopPrice	stop price

Cancel Single Order by clientOid

{
  "cancelledOrderId": "vs8hoo8ksc8mario0035a74n",
  "clientOid": "689ff597f4414061aa819cc414836abd"
}

Request via this interface to cancel a stop order via the clientOid.

HTTP REQUEST

DELETE /api/v1/stop-order/cancelOrderByClientOid

Example

DELETE /api/v1/stop-order/cancelOrderByClientOid?symbol=BTC-USDT&clientOid=9823jnfda923a

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
clientOid	String	Unique order id created by users to identify their orders
symbol	String	[Optional] Unique order id created by users to identify their orders

RESPONSES

Field	Description
cancelledOrderId	Order ID of cancelled order
clientOid	Unique order id created by users to identify their orders

Market Data

Signature is not required for this part

Symbols & Ticker

Get Symbols List(deprecated)

{
    "code": "200000",
    "data": [
        {
            "symbol": "GALAX-USDT",
            "name": "GALA-USDT",
            "baseCurrency": "GALA",// It's not accurate, It should be GALAX instead of GALA
            "quoteCurrency": "USDT",
            "feeCurrency": "USDT",
            "market": "USDS",
            "baseMinSize": "10",
            "quoteMinSize": "0.001",
            "baseMaxSize": "10000000000",
            "quoteMaxSize": "99999999",
            "baseIncrement": "0.0001",
            "quoteIncrement": "0.00001",
            "priceIncrement": "0.00001",
            "priceLimitRate": "0.1",
            "minFunds": "0.1",
            "isMarginEnabled": true,
            "enableTrading": true
        },
        {
            "symbol": "XLM-USDT",
            "name": "XLM-USDT",
            "baseCurrency": "XLM",
            "quoteCurrency": "USDT",
            "feeCurrency": "USDT",
            "market": "USDS",
            "baseMinSize": "0.1",
            "quoteMinSize": "0.01",
            "baseMaxSize": "10000000000",
            "quoteMaxSize": "99999999",
            "baseIncrement": "0.0001",
            "quoteIncrement": "0.000001",
            "priceIncrement": "0.000001",
            "priceLimitRate": "0.1",
            "minFunds": "0.1",
            "isMarginEnabled": true,
            "enableTrading": true
        }
    ]
}

Request via this endpoint to get a list of available currency pairs for trading. If you want to get the market information of the trading symbol, please use Get All Tickers.

HTTP REQUEST

GET /api/v1/symbols

The GET /api/v1/symbols endpoint is deprecated because when the name of trading pairs changes, the baseCurrency in the response also changes, which is not accurate. So it is recommended to use GET /api/v2/symbols endpoint instead

Example

GET /api/v1/symbols

PARAMETERS

Param	Type	Description
market	String	[Optional] The trading market.

RESPONSES

Field	Description
symbol	unique code of a symbol, it would not change after renaming
name	Name of trading pairs, it would change after renaming
baseCurrency	Base currency,e.g. BTC.
quoteCurrency	Quote currency,e.g. USDT.
market	The trading market.
baseMinSize	The minimum order quantity requried to place an order.
quoteMinSize	The minimum order funds required to place a market order.
baseMaxSize	The maximum order size required to place an order.
quoteMaxSize	The maximum order funds required to place a market order.
baseIncrement	The increment of the order size. The value shall be a positive multiple of the baseIncrement.
quoteIncrement	The increment of the funds required to place a market order. The value shall be a positive multiple of the quoteIncrement.
priceIncrement	The increment of the price required to place a limit order. The value shall be a positive multiple of the priceIncrement.
feeCurrency	The currency of charged fees.
enableTrading	Available for transaction or not.
isMarginEnabled	Available for margin or not.
priceLimitRate	Threshold for price portection
minFunds	the minimum spot and margin trading amounts

The baseMinSize and baseMaxSize fields define the min and max order size. The priceIncrement field specifies the min order price as well as the price increment.This also applies to quote currency.

The order price must be a positive integer multiple of this priceIncrement (i.e. if the increment is 0.01, the 0.001 and 0.021 order prices would be rejected).

priceIncrement and quoteIncrement may be adjusted in the future. We will notify you by email and site notifications before adjustment.

Order Type	Follow the rules of minFunds
Limit Buy	[Order Amount * Order Price] >= `minFunds`
Limit Sell	[Order Amount * Order Price] >= `minFunds`
Market Buy	Order Value >= `minFunds`
Market Sell	[Order Amount * Last Price of Base Currency] >= `minFunds`

Note:

API market buy orders (by amount) valued at [Order Amount * Last Price of Base Currency] <minFunds will be rejected.
API market sell orders (by value) valued at <minFunds will be rejected.
Take profit and stop loss orders at market or limit prices will be rejected when triggered.

Get Symbols List

{
    "code": "200000",
    "data": [
        {
            "symbol": "GALAX-USDT",
            "name": "GALA-USDT",
            "baseCurrency": "GALAX",
            "quoteCurrency": "USDT",
            "feeCurrency": "USDT",
            "market": "USDS",
            "baseMinSize": "10",
            "quoteMinSize": "0.001",
            "baseMaxSize": "10000000000",
            "quoteMaxSize": "99999999",
            "baseIncrement": "0.0001",
            "quoteIncrement": "0.00001",
            "priceIncrement": "0.00001",
            "priceLimitRate": "0.1",
            "minFunds": "0.1",
            "isMarginEnabled": true,
            "enableTrading": true
        },
        {
            "symbol": "XLM-USDT",
            "name": "XLM-USDT",
            "baseCurrency": "XLM",
            "quoteCurrency": "USDT",
            "feeCurrency": "USDT",
            "market": "USDS",
            "baseMinSize": "0.1",
            "quoteMinSize": "0.01",
            "baseMaxSize": "10000000000",
            "quoteMaxSize": "99999999",
            "baseIncrement": "0.0001",
            "quoteIncrement": "0.000001",
            "priceIncrement": "0.000001",
            "priceLimitRate": "0.1",
            "minFunds": "0.1",
            "isMarginEnabled": true,
            "enableTrading": true
        }
    ]
}

Request via this endpoint to get a list of available currency pairs for trading. If you want to get the market information of the trading symbol, please use Get All Tickers.

HTTP REQUEST

GET /api/v2/symbols

Example

GET /api/v2/symbols

PARAMETERS

Param	Type	Description
market	String	[Optional] The trading market.

RESPONSES

Field	Description
symbol	unique code of a symbol, it would not change after renaming
name	Name of trading pairs, it would change after renaming
baseCurrency	Base currency,e.g. BTC.
quoteCurrency	Quote currency,e.g. USDT.
market	The trading market.
baseMinSize	The minimum order quantity requried to place an order.
quoteMinSize	The minimum order funds required to place a market order.
baseMaxSize	The maximum order size required to place an order.
quoteMaxSize	The maximum order funds required to place a market order.
baseIncrement	The increment of the order size. The value shall be a positive multiple of the baseIncrement.
quoteIncrement	The increment of the funds required to place a market order. The value shall be a positive multiple of the quoteIncrement.
priceIncrement	The increment of the price required to place a limit order. The value shall be a positive multiple of the priceIncrement.
feeCurrency	The currency of charged fees.
enableTrading	Available for transaction or not.
isMarginEnabled	Available for margin or not.
priceLimitRate	Threshold for price portection
minFunds	the minimum spot and margin trading amounts

The order price must be a positive integer multiple of this priceIncrement (i.e. if the increment is 0.01, the 0.001 and 0.021 order prices would be rejected).

priceIncrement and quoteIncrement may be adjusted in the future. We will notify you by email and site notifications before adjustment.

Order Type	Follow the rules of minFunds
Limit Buy	[Order Amount * Order Price] >= `minFunds`
Limit Sell	[Order Amount * Order Price] >= `minFunds`
Market Buy	Order Value >= `minFunds`
Market Sell	[Order Amount * Last Price of Base Currency] >= `minFunds`

Note:

API market buy orders (by amount) valued at [Order Amount * Last Price of Base Currency] <minFunds will be rejected.
API market sell orders (by value) valued at <minFunds will be rejected.
Take profit and stop loss orders at market or limit prices will be rejected when triggered.

Get Ticker

//Get Ticker
{
    "sequence": "1550467636704",
    "bestAsk": "0.03715004",
    "size": "0.17",
    "price": "0.03715005",
    "bestBidSize": "3.803",
    "bestBid": "0.03710768",
    "bestAskSize": "1.788",
    "time": 1550653727731
}

Request via this endpoint to get Level 1 Market Data. The returned value includes the best bid price and size, the best ask price and size as well as the last traded price and the last traded size.

HTTP REQUEST

GET /api/v1/market/orderbook/level1

Example

GET /api/v1/market/orderbook/level1?symbol=BTC-USDT

PARAMETERS

Param	Type	Description
symbol	String	symbol

RESPONSES

Field	Description
sequence	Sequence
bestAsk	Best ask price
size	Last traded size
price	Last traded price
bestBidSize	Best bid size
bestBid	Best bid price
bestAskSize	Best ask size
time	timestamp

Get All Tickers

{
    "time":1602832092060,
    "ticker":[
        {
            "symbol": "BTC-USDT",   // symbol
            "symbolName":"BTC-USDT", // Name of trading pairs, it would change after renaming
            "buy": "11328.9",   // bestAsk
            "sell": "11329",    // bestBid
            "changeRate": "-0.0055",    // 24h change rate
            "changePrice": "-63.6", // 24h change price
            "high": "11610",    // 24h highest price
            "low": "11200", // 24h lowest price
            "vol": "2282.70993217", // 24h volume，the aggregated trading volume in BTC
            "volValue": "25984946.157790431",   // 24h total, the trading volume in quote currency of last 24 hours
            "last": "11328.9",  // last price
            "averagePrice": "11360.66065903",   // 24h average transaction price yesterday
            "takerFeeRate": "0.001",    // Basic Taker Fee
            "makerFeeRate": "0.001",    // Basic Maker Fee
            "takerCoefficient": "1",    // Taker Fee Coefficient
            "makerCoefficient": "1" // Maker Fee Coefficient
        }
    ]
}

Request market tickers for all the trading pairs in the market (including 24h volume).

On the rare occasion that we will change the currency name, if you still want the changed symbol name, you can use the symbolName field instead of the symbol field via “Get all tickers” endpoint.

HTTP REQUEST

GET /api/v1/market/allTickers

PARAMETERS

N/A

RESPONSES

Field	Description
time	timestamp
symbol	Symbol
symbolName	Name of trading pairs, it would change after renaming
buy	Best bid price
sell	Best ask price
changeRate	24h change rate
changePrice	24h change price
high	Highest price in 24h
low	Lowest price in 24h
vol	24h volume, executed based on base currency
volValue	24h traded amount
last	Last traded price
averagePrice	Average trading price in the last 24 hours
takerFeeRate	Basic Taker Fee
makerFeeRate	Basic Maker Fee
takerCoefficient	Taker Fee Coefficient
makerCoefficient	Maker Fee Coefficient

Get 24hr Stats

//Get 24hr Stats
{
    "time": 1602832092060,  // time
    "symbol": "BTC-USDT",   // symbol
    "buy": "11328.9",   // bestAsk
    "sell": "11329",    // bestBid
    "changeRate": "-0.0055",    // 24h change rate
    "changePrice": "-63.6", // 24h change price
    "high": "11610",    // 24h highest price
    "low": "11200", // 24h lowest price
    "vol": "2282.70993217", // 24h volume，the aggregated trading volume in BTC
    "volValue": "25984946.157790431",   // 24h total, the trading volume in quote currency of last 24 hours
    "last": "11328.9",  // last price
    "averagePrice": "11360.66065903",   // 24h average transaction price yesterday
    "takerFeeRate": "0.001",    // Basic Taker Fee
    "makerFeeRate": "0.001",    // Basic Maker Fee
    "takerCoefficient": "1",    // Taker Fee Coefficient
    "makerCoefficient": "1" // Maker Fee Coefficient
}

Request via this endpoint to get the statistics of the specified ticker in the last 24 hours.

HTTP REQUEST

GET /api/v1/market/stats

Example

GET /api/v1/market/stats?symbol=BTC-USDT

PARAMETERS

Param	Type	Description
symbol	String	symbol

RESPONSES

Field	Description
time	timestamp
symbol	Symbol
buy	Best bid price
sell	Best ask price
changeRate	24h change rate
changePrice	24h change price
high	Highest price in 24h
low	Lowest price in 24h
vol	24h volume, executed based on base currency
volValue	24h traded amount
last	Last traded price
averagePrice	Average trading price in the last 24 hours
takerFeeRate	Basic Taker Fee
makerFeeRate	Basic Maker Fee
takerCoefficient	Taker Fee Coefficient
makerCoefficient	Maker Fee Coefficient

Get Market List

//Get Market List
{
  "data" : [
    "USDS", //SC has been changed to USDS
    "BTC",
    "KCS",
    "ALTS", //ALTS market includes ETH, NEO, TRX
    "NFT-ETF",
    "FIAT",
    "DeFi",
    "NFT",
    "Metaverse",
    "Polkadot",
    "ETF"
  ],
  "code" : "200000"
}

Request via this endpoint to get the transaction currency for the entire trading market.

HTTP REQUEST

GET /api/v1/markets

Example

GET /api/v1/markets

PARAMETERS

N/A

Order Book

Get Part Order Book(aggregated)

{
    "sequence": "3262786978",
    "time": 1550653727731,
    "bids": [["6500.12", "0.45054140"],
             ["6500.11", "0.45054140"]],  //[price，size]
    "asks": [["6500.16", "0.57753524"],
             ["6500.15", "0.57753524"]]   
}

Request via this endpoint to get a list of open orders for a symbol.

Level-2 order book includes all bids and asks (aggregated by price), this level returns only one size for each active price (as if there was only a single order for that price).

Query via this endpoint and the system will return only part of the order book to you. If you request level2_20, the system will return you 20 pieces of data (ask and bid data) on the order book. If you request level_100, the system will return 100 pieces of data (ask and bid data) on the order book to you. You are recommended to request via this endpoint as the system reponse would be faster and cosume less traffic.

To maintain up-to-date Order Book, please use Websocket incremental feed after retrieving the Level 2 snapshot.

HTTP REQUEST

GET /api/v1/market/orderbook/level2_20
GET /api/v1/market/orderbook/level2_100

Example

GET /api/v1/market/orderbook/level2_20?symbol=BTC-USDT
GET /api/v1/market/orderbook/level2_100?symbol=BTC-USDT

PARAMETERS

Param	Type	Description
symbol	String	symbol

RESPONSES

Field	Description
sequence	Sequence number
time	Timestamp
bids	bids
asks	asks

Data Sort

Asks: Sort price from low to high

Bids: Sort price from high to low

Get Full Order Book(aggregated)

{
    "sequence": "3262786978",
    "time": 1550653727731,
    "bids": [["6500.12", "0.45054140"],
             ["6500.11", "0.45054140"]],  //[price，size]
    "asks": [["6500.16", "0.57753524"],
             ["6500.15", "0.57753524"]]  
}

Request via this endpoint to get the order book of the specified symbol.

Level 2 order book includes all bids and asks (aggregated by price). This level returns only one aggregated size for each price (as if there was only one single order for that price).

This API will return data with full depth.

It is generally used by professional traders because it uses more server resources and traffic, and we have strict access frequency control.

To maintain up-to-date Order Book, please use Websocket incremental feed after retrieving the Level 2 snapshot.

HTTP REQUEST

GET /api/v3/market/orderbook/level2(Recommend)

Example

GET /api/v3/market/orderbook/level2?symbol=BTC-USDT

API KEY PERMISSIONS

This endpoint requires the "General" permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 30 times/3s.

PARAMETERS

Param	Type	Description
symbol	String	symbol

RESPONSES

Field	Description
sequence	Sequence number
time	Timestamp
bids	bids
asks	asks

Data Sor

Asks: Sort price from low to high

Bids: Sort price from high to low

Histories

Get Trade Histories

[
    {
        "sequence": "1545896668571",
        "price": "0.07",                      //Filled price
        "size": "0.004",                      //Filled amount
        "side": "buy",                        //Filled side. The filled side is set to the taker by default.
        "time": 1545904567062140823           //Transaction time
    },
    {
        "sequence": "1545896668578",
        "price": "0.054",
        "size": "0.066",
        "side": "buy",
        "time": 1545904581619888405
    }
]

Request via this endpoint to get the trade history of the specified symbol.

HTTP REQUEST

GET /api/v1/market/histories

Example

GET /api/v1/market/histories?symbol=BTC-USDT

PARAMETERS

Param	Type	Description
symbol	String	symbol

RESPONSES

Field	Description
sequence	Sequence number
time	Transaction time
price	Filled price
size	Filled amount
side	Filled side. The filled side is set to the taker by default

SIDE

The trade side indicates the taker order side. A taker order is the order that was matched with orders opened on the order book.

Get Klines

[
    [
        "1545904980",             //Start time of the candle cycle
        "0.058",                  //opening price
        "0.049",                  //closing price
        "0.058",                  //highest price
        "0.049",                  //lowest price
        "0.018",                  //Transaction volume
        "0.000945"                //Transaction amount
    ],
    [
        "1545904920",
        "0.058",
        "0.072",
        "0.072",
        "0.058",
        "0.103",
        "0.006986"
    ]
]

Request via this endpoint to get the kline of the specified symbol. Data are returned in grouped buckets based on requested type.

HTTP REQUEST

GET /api/v1/market/candles

Example

GET /api/v1/market/candles?type=1min&symbol=BTC-USDT&startAt=1566703297&endAt=1566789757

PARAMETERS

Param	Type	Description
symbol	String	symbol
startAt	long	[Optional] Start time (second), default is 0
endAt	long	[Optional] End time (second), default is 0
type	String	Type of candlestick patterns: 1min, 3min, 5min, 15min, 30min, 1hour, 2hour, 4hour, 6hour, 8hour, 12hour, 1day, 1week

RESPONSES

Field	Description
time	Start time of the candle cycle
open	Opening price
close	Closing price
high	Highest price
low	Lowest price
volume	Transaction volume
turnover	Transaction amount

Currencies

Get Currencies

[
  {
    "currency": "CSP",
    "name": "CSP",
    "fullName": "Caspian",
    "precision": 8,
    "confirms": 12,
    "contractAddress": "0xa6446d655a0c34bc4f05042ee88170d056cbaf45",
    "withdrawalMinSize": "2000",
    "withdrawalMinFee": "1000",
    "isWithdrawEnabled": true,
    "isDepositEnabled": true,
    "isMarginEnabled": false,
    "isDebitEnabled": false
  },
  {
    "currency": "LOKI",
    "name": "OXEN",
    "fullName": "Oxen",
    "precision": 8,
    "confirms": 10,
    "contractAddress": "",
    "withdrawalMinSize": "2",
    "withdrawalMinFee": "2",
    "isWithdrawEnabled": true,
    "isDepositEnabled": true,
    "isMarginEnabled": false,
    "isDebitEnabled": true
  }
]

Request via this endpoint to get the currency list.

HTTP REQUEST

GET /api/v1/currencies

Example

GET /api/v1/currencies

RESPONSES

Field	Description
currency	A unique currency code that will never change
name	Currency name, will change after renaming
fullName	Full name of a currency, will change after renaming
precision	Currency precision
confirms	Number of block confirmations
contractAddress	Contract address
withdrawalMinSize	Minimum withdrawal amount
withdrawalMinFee	Minimum fees charged for withdrawal
isWithdrawEnabled	Support withdrawal or not
isDepositEnabled	Support deposit or not
isMarginEnabled	Support margin or not
isDebitEnabled	Support debit or not

CURRENCY CODES

Currency codes will conform to the ISO 4217 standard where possible. Currencies which have or had no representation in ISO 4217 may use a custom code.

Code	Description
BTC	Bitcoin
ETH	Ethereum
KCS	Kucoin Shares

For a coin, the "currency" is a fixed value and works as the only recognized identity of the coin. As the "name", "fullnane" and "precision" of a coin are modifiable values, when the "name" of a coin is changed, you should use "currency" to get the coin.

For example:

The "currency" of XRB is "XRB", if the "name" of XRB is changed into "Nano", you should use "XRB" (the currency of XRB) to search the coin.

Get Currency Detail

{
  "currency": "BTC",
  "name": "BTC",
  "fullName": "Bitcoin",
  "precision": 8,
  "confirms": 2,
  "contractAddress": "",
  "withdrawalMinSize": "0.001",
  "withdrawalMinFee": "0.0006",
  "isWithdrawEnabled": true,
  "isDepositEnabled": true,
  "isMarginEnabled": true,
  "isDebitEnabled": true
}

Request via this endpoint to get the currency details of a specified currency

HTTP REQUEST

GET /api/v1/currencies/{currency}

Example

GET /api/v1/currencies/BTC

PARAMETERS

Param	Type	Description
currency	String	Path parameter. Currency
chain	String	[Optional] Support for querying the chain of currency, e.g. The available value for USDT are OMNI, ERC20, TRC20. This only apply for multi-chain currency, and there is no need for single chain currency.

RESPONSES

Field	Description
currency	A unique currency code that will never change
name	Currency name, will change after renaming
fullName	Full name of a currency, will change after renaming
precision	Currency precision
confirms	Number of block confirmations
contractAddress	Contract address
withdrawalMinSize	Minimum withdrawal amount
withdrawalMinFee	Minimum fees charged for withdrawal
isWithdrawEnabled	Support withdrawal or not
isDepositEnabled	Support deposit or not
isMarginEnabled	Support margin or not
isDebitEnabled	Support debit or not

{
    "code": "200000",
    "data": {
        "currency": "BTC",
        "name": "BTC",
        "fullName": "Bitcoin",
        "precision": 8,
        "confirms": null,
        "contractAddress": null,
        "isMarginEnabled": true,
        "isDebitEnabled": true,
        "chains": [
            {
                "chainName": "BTC",
                "chain": "btc",
                "withdrawalMinSize": "0.001",
                "withdrawalMinFee": "0.0005",
                "isWithdrawEnabled": true,
                "isDepositEnabled": true,
                "confirms": 2,
                "contractAddress": ""
            },
            {
                "chainName": "KCC",
                "chain": "kcc",
                "withdrawalMinSize": "0.0008",
                "withdrawalMinFee": "0.00002",
                "isWithdrawEnabled": true,
                "isDepositEnabled": true,
                "confirms": 20,
                "contractAddress": ""
            },
            ...
        ]
    }
}

Request via this endpoint to get the currency details of a specified currency

HTTP REQUEST

GET /api/v2/currencies/{currency}

Example

GET /api/v2/currencies/BTC

PARAMETERS

Param	Type	Description
currency	String	Path parameter. Currency
chain	String	[Optional] Support for querying the chain of currency, return the currency details of all chains by default.

RESPONSES

Field	Description
currency	A unique currency code that will never change
name	Currency name, will change after renaming
fullName	Full name of a currency, will change after renaming
precision	Currency precision
confirms	Number of block confirmations
contractAddress	Contract address
withdrawalMinSize	Minimum withdrawal amount
chainName	chain name of currency
chain	chain of currency
withdrawalMinFee	Minimum fees charged for withdrawal
isWithdrawEnabled	Support withdrawal or not
isDepositEnabled	Support deposit or not
isMarginEnabled	Support margin or not
isDebitEnabled	Support debit or not

Get Fiat Price

{
    "code": "200000",
    "data": {
        "BTC": "3911.28000000",
        "ETH": "144.55492453",
        "LTC": "48.45888179",
        "KCS": "0.45546856"
    }
}

Request via this endpoint to get the fiat price of the currencies for the available trading pairs.

HTTP REQUEST

GET /api/v1/prices

Example

GET /api/v1/prices

PARAMETERS

Param	Type	Description
base	String	[Optional] Ticker symbol of a base currency,eg.USD,EUR. Default is USD
currencies	String	[Optional] Comma-separated cryptocurrencies to be converted into fiat, e.g.: BTC,ETH, etc. Default to return the fiat price of all currencies.

Margin Trade

Margin Info

Get Mark Price

{
    "code": "200000",
    "data": {
        "symbol": "USDT-BTC",
        "timePoint": 1659930234000,
        "value": 0.0000429
    }
}

Request via this endpoint to get the index price of the specified symbol.

HTTP REQUEST

GET /api/v1/mark-price/{symbol}/current

Example

GET /api/v1/mark-price/USDT-BTC/current

PARAMETERS

Param	Type	Description
symbol	String	Path parameter. symbol

List of currently supported symbol

USDT-BTC, ETH-BTC, LTC-BTC, EOS-BTC, XRP-BTC, KCS-BTC, DIA-BTC, VET-BTC, DASH-BTC, DOT-BTC, XTZ-BTC, ZEC-BTC, BSV-BTC, ADA-BTC, ATOM-BTC, LINK-BTC, LUNA-BTC, NEO-BTC, UNI-BTC, ETC-BTC, BNB-BTC, TRX-BTC, XLM-BTC, BCH-BTC, USDC-BTC, GRT-BTC, 1INCH-BTC, AAVE-BTC,SNX-BTC, API3-BTC, CRV-BTC, MIR-BTC, SUSHI-BTC, COMP-BTC, ZIL-BTC, YFI-BTC, OMG-BTC,XMR-BTC, WAVES-BTC, MKR-BTC, COTI-BTC, SXP-BTC, THETA-BTC, ZRX-BTC, DOGE-BTC, LRC-BTC, FIL-BTC, DAO-BTC, BTT-BTC, KSM-BTC, BAT-BTC, ROSE-BTC, CAKE-BTC, CRO-BTC, XEM-BTC, MASK-BTC, FTM-BTC, IOST-BTC, ALGO-BTC, DEGO-BTC, CHR-BTC, CHZ-BTC, MANA-BTC, ENJ-BTC, IOST-BTC, ANKR-BTC, ORN-BTC, SAND-BTC, VELO-BTC, AVAX-BTC, DODO-BTC, WIN-BTC, ONE-BTC, SHIB-BTC, ICP-BTC, MATIC-BTC, CKB-BTC, SOL-BTC, VRA-BTC, DYDX-BTC, ENS-BTC, NEAR-BTC, SLP-BTC, AXS-BTC, TLM-BTC, ALICE-BTC,IOTX-BTC, QNT-BTC, SUPER-BTC, HABR-BTC, RUNE-BTC, EGLD-BTC, AR-BTC, RNDR-BTC, LTO-BTC, YGG-BTC

RESPONSES

Field	Description
symbol	symbol
timePoint	Time (millisecond)
value	Mark price

Get Margin Configuration Info

{
    "code": "200000",
    "data": {
        "currencyList": [
            "XEM",
            "MATIC",
            "VRA",
            ...
        ],
        "maxLeverage": 5,
        "warningDebtRatio": "0.95",
        "liqDebtRatio": "0.97"
    }
}

Request via this endpoint to get the configure info of the margin.

HTTP REQUEST

GET /api/v1/margin/config

Example

GET /api/v1/margin/config

PARAMETERS

N/A

RESPONSES

Field	Description
currencyList	Available currencies for margin trade
warningDebtRatio	The warning debt ratio of the forced liquidation
liqDebtRatio	The debt ratio of the forced liquidation
maxLeverage	Max leverage available

Get Margin Account

{
    "code": "200000",
    "data": {
        "debtRatio": "0",
        "accounts": [
            {
                "currency": "KCS",
                "totalBalance": "0.01",
                "availableBalance": "0.01",
                "holdBalance": "0",
                "liability": "0",
                "maxBorrowSize": "0"
            },
            {
                "currency": "USDT",
                "totalBalance": "0",
                "availableBalance": "0",
                "holdBalance": "0",
                "liability": "0",
                "maxBorrowSize": "0"
            },
            ...
        ]
    }
}

Request via this endpoint to get the info of the margin account.

HTTP REQUEST

GET /api/v1/margin/account

Example

GET /api/v1/margin/account

API KEY PERMISSIONS

This endpoint requires the General permission.

RESPONSES

Field	Description
accounts	Margin account list
debtRatio	Debt ratio
currency	Currency
totalBalance	Total funds in the account
availableBalance	Available funds in the account
holdBalance	Funds on hold in the account
liability	Total liabilities
maxBorrowSize	Available size to borrow

Query the cross/isolated margin risk limit

// CROSS MARGIN RESPONSES
{
    "code": "200000",
    "data": [
        {
            "currency": "BTC",
            "borrowMaxAmount": "140",
            "buyMaxAmount": "60",
            "holdMaxAmount": "522.8",
            "precision": 8
        },
        {
            "currency": "USDT",
            "borrowMaxAmount": "2000000",
            "buyMaxAmount": "10000000",
            "holdMaxAmount": "15000000",
            "precision": 8
        },
        {
            "currency": "ETH",
            "borrowMaxAmount": "1000",
            "buyMaxAmount": "600",
            "holdMaxAmount": "3737.1",
            "precision": 8
        },
        ...
    ]
}

// ISOLATED MARGIN RESPONSES
{
    "code": "200000",
    "data": [
        {
            "symbol": "ETH-USDT",
            "baseMaxBorrowAmount": "200",
            "quoteMaxBorrowAmount": "3000000",
            "baseMaxBuyAmount": "210",
            "quoteMaxBuyAmount": "3300000",
            "baseMaxHoldAmount": "3737.1",
            "quoteMaxHoldAmount": "5000000",
            "basePrecision": 8,
            "quotePrecision": 8
        },
        {
            "symbol": "BTC-USDT",
            "baseMaxBorrowAmount": "20",
            "quoteMaxBorrowAmount": "3000000",
            "baseMaxBuyAmount": "25",
            "quoteMaxBuyAmount": "3300000",
            "baseMaxHoldAmount": "522.8",
            "quoteMaxHoldAmount": "5000000",
            "basePrecision": 8,
            "quotePrecision": 8
        },
        ...
    ]
}

This endpoint can query the cross/isolated margin risk limit.

HTTP REQUEST

GET /api/v1/risk/limit/strategy

Example

GET /api/v1/risk/limit/strategy?marginModel=cross

API KEY PERMISSIONS

This endpoint requires the General permission.

REQUEST RATE LIMIT

This API is restricted for each account, the request rate limit is 1 times/3s.

PARAMETERS

Param	Type	Description
marginModel	String	The type of marginModel : `cross`（cross margin）, `isolated` (isolated margin). Default is `cross`.

CROSS MARGIN RESPONSES

Field	Description
currency	Currency
borrowMaxAmount	Maximum borrow amount
buyMaxAmount	Maximum buy amount
holdMaxAmount	Maximum hold amount
precision	Precision

ISOLATED MARGIN RESPONSES

Field	Description
symbol	The valid trading symbol code. e.g: EOS-USDC.
baseMaxBorrowAmount	Maximum borrowing amount of base currency
quoteMaxBorrowAmount	Maximum borrowing amount of quote currency
baseMaxBuyAmount	Maximum buy amount of base currency
quoteMaxBuyAmount	Maximum buy amount of quote currency
baseMaxHoldAmount	Maximum holding amount of base currency
quoteMaxHoldAmount	Maximum holding amount of quote currency
basePrecision	Base currency precision
quotePrecision	Quote currency precision

Borrow & Lend

Post Borrow Order

{
    "orderId": "a2111213",
    "currency": "USDT"
}

HTTP REQUEST

POST /api/v1/margin/borrow

Example

POST /api/v1/margin/borrow

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency to Borrow
type	String	Type: FOK, IOC
size	BigDecimal	Total size
maxRate	BigDecimal	[Optional] The max interest rate. All interest rates are acceptable if this field is left empty.
term	String	[Optional] Term (Unit: Day). All terms are acceptable if this field is left empty. Please note to separate the terms via comma. For example, 7,14,28.

RESPONSES

Field	Description
orderId	Borrow order ID
currency	Currency to borrow
actualSize	Amount actually borrowed

Get Borrow Order

{
    "orderId": "a2111213",
    "currency": "USDT",
    "size": "1.009",
    "filled": 1.009,
    "matchList": [
      {
        "currency": "USDT",
        "dailyIntRate": "0.001",
        "size": "12.9",
        "term": 7,
        "timestamp": "1544657947759",
        "tradeId": "1212331"
      }
    ],
    "status": "DONE"
  }

Request via this endpoint to get the info of the borrow order through the orderId retrieved from Post Borrow Order .

HTTP REQUEST

GET /api/v1/margin/borrow

Example

GET /api/v1/margin/borrow?orderId=123456789

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
orderId	String	Borrow order ID

RESPONSES

Field	Description
orderId	Borrow order ID
currency	Currency
size	Total size
filled	Size executed
status	Status. DONE (Canceled or Filled),PROCESSING
matchList	Execution details
tradeId	Trade ID
dailyIntRate	Daily interest rate
term	Term
timestamp	Borrow time

Get Repay Record

{
    "currentPage": 0,
    "pageSize": 0,
    "totalNum": 0,
    "totalPage": 0,
    "items": [
        {
            "tradeId": "1231141",
            "currency": "USDT",
            "accruedInterest": "0.22121",
            "dailyIntRate": "0.0021",
            "liability": "1.32121",
            "maturityTime": "1544657947759",
            "principal": "1.22121",
            "repaidSize": "0",
            "term": 7,
            "createdAt": "1544657947759"
        }
    ]
  }

HTTP REQUEST

GET /api/v1/margin/borrow/outstanding

Example

GET /api/v1/margin/borrow/outstanding

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency. All currencies will be quried if this field is not required.

RESPONSES

Field	Description
tradeId	Trade ID
currency	Currency
liability	Total liabilities
principal	Outstanding principal to repay
accruedInterest	Accrued interest
createdAt	Execution time
maturityTime	Maturity time
term	Term
repaidSize	Repaid size
dailyIntRate	Daily interest rate

Get Repayment Record

{
    "pageSize": 0,
    "totalNum": 0,
    "totalPage": 0,
    "currentPage": 0,
    "items": [
        {
            "tradeId": "1231141",
            "currency": "USDT",
            "dailyIntRate": "0.0021",
            "interest": "0.22121",
            "principal": "1.22121",
            "repaidSize": "0",
            "repayTime": "1544657947759",
            "term": 7
        }
    ]
  }

HTTP REQUEST

GET /api/v1/margin/borrow/repaid

Example

GET /api/v1/margin/borrow/repaid

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency. All currencies will be quried if this field is not required.

RESPONSES

Field	Description
tradeId	Trade ID
currency	Currency
interest	Interest
principal	Principal
repayTime	Repayment time
term	Term
repaidSize	Repaid size
dailyIntRate	Daily interest rate

One-Click Repayment

{
  "code": "200000",
  "data": null
}

HTTP REQUEST

POST /api/v1/margin/repay/all

Example

POST /api/v1/margin/repay/all

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency
sequence	String	Repayment strategy. RECENTLY_EXPIRE_FIRST: Time priority, namely to repay the loans of the nearest maturity time first, HIGHEST_RATE_FIRST: Rate Priority: Repay the loans of the highest interest rate first.
size	BigDecimal	Repayment size

RESPONSES

A successful repayment response is indicated by an HTTP status code 200 and system code 200000. If the system returns other code, it means the repayment fails.

Repay a Single Order

{
  "code": "200000",
  "data": null
}

Request via this endpoint to repay a single order.

HTTP REQUEST

POST /api/v1/margin/repay/single

Example

POST /api/v1/margin/repay/single

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
currency	String	Currncy
tradeId	String	Trade ID
size	BigDecimal	Repayment size

RESPONSES

A successful repayment response is indicated by an HTTP status code 200 and system code 200000. If the system returns other code, it means the repayment fails.

Post Lend Order

{
    "orderId": "5da5a4f0f943c040c2f8501e"
}

Request via this endpoint to post lend order.

Please ensure that you have sufficient funds in your Main Account before you post the order. Once the post succeed, the funds posted will be frozen until the order is succssfuly lent out or cancelled.

HTTP REQUEST

POST /api/v1/margin/lend

Example

POST /api/v1/margin/lend

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency to lend
size	String	Total size
dailyIntRate	String	Daily interest rate. e.g. 0.002 is 0.2%
term	int	Term (Unit: Day)

RESPONSES

Field	Description
orderId	Lend order ID

Cancel Lend Order

{
  "code": "200000",
  "data": null
}

Request via this endpoint to cancel lend order.

HTTP REQUEST

DELETE /api/v1/margin/lend/{orderId}

Example

DELETE /api/v1/margin/lend/5d9f133ef943c0882ca37bc8

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
orderId	String	Lend order ID

Set Auto-lend

{
  "code": "200000",
  "data": null
}

Request via this endpoint to set up the automatic lending for a specified currency.

HTTP REQUEST

POST /api/v1/margin/toggle-auto-lend

Example

POST /api/v1/margin/toggle-auto-lend

API KEY PERMISSIONS

This endpoint requires the "Trade" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency
isEnable	boolean	Auto-lend enabled or not
retainSize	String	Reserved size in main account. Mandatory when isEnable is true.
dailyIntRate	String	acceptable min. day rate, 0.002 is 0.2%. Mandatory when isEnable is true.
term	int	Term (Unit: Day). Mandatory when isEnable is true.

Advanced Description

dailyIntRate

When the priority interest rate is higher than the acceptable min. day rate, the system will place lending orders at the rate of the former one. The priority interest rate is the optimal market rate for all pending orders of the selected lending period, orders with this interest rate will be prioritized for auto-lending.

When the priority interest rate is lower than the acceptable min. day rate, the system will place lending orders at the rate of the latter one.

Get Active Order

{
      "currentPage": 1,
      "pageSize": 1,
      "totalNum": 1,
      "totalPage": 1,
      "items": [
        {
            "orderId": "5da59f5ef943c033b2b643e4",
            "currency": "BTC",
            "size": "0.51",
            "filledSize": "0",
            "dailyIntRate": "0.0001",
            "term": 7,
            "createdAt": 1571135326913
        }
    ]
}

Request via this endpoint to get active lend orders. Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page. The max pageSize is 100.

Active lend orders include orders unfilled, partially filled and uncanceled.

HTTP REQUEST

GET /api/v1/margin/lend/active

Example

GET /api/v1/margin/lend/active?currency=BTC&currentPage=1&pageSize=50

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency

RESPONSES

Field	Description
orderId	Lend order ID
currency	Currency
size	Total size
filledSize	Size executed
dailyIntRate	Daily interest rate. e.g. 0.002 is 0.2%
term	Term (Unit: Day)
createdAt	Time of the event (millisecond)

Get Lent History

{
    "currentPage": 1,
    "pageSize": 1,
    "totalNum": 1,
    "totalPage": 1,
    "items": [
        {
            "orderId": "5da59f5bf943c033b2b643da",
            "currency": "BTC",
            "size": "0.51",
            "filledSize": "0.51",
            "dailyIntRate": "0.0001",
            "term": 7,
            "status": "FILLED",
            "createdAt": 1571135323984
        }
    ]
}

Request via this endpoint to get lent orders . Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page. The max pageSize is 100.

Lent order history involves orders canceled or fully filled.

HTTP REQUEST

GET /api/v1/margin/lend/done

Example

GET /api/v1/margin/lend/done?currency=BTC&currentPage=1&pageSize=50

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency

RESPONSES

Field	Description
orderId	Lend order ID
currency	Currency
size	Total size
filledSize	Size executed
dailyIntRate	Daily interest rate. e.g. 0.002 is 0.2%
term	Term (Unit: Day)
createdAt	Time of the event (millisecond)
status	Order status: FILLED -- Fully filled, CANCELED -- Canceled

Get Active Lend Order List

{
    "currentPage": 1,
    "pageSize": 1,
    "totalNum": 1,
    "totalPage": 1,
    "items": [
        {
            "tradeId": "5da6dba0f943c0c81f5d5db5",
            "currency": "BTC",
            "size": "0.51",
            "accruedInterest": "0",
            "repaid": "0.10999968",
            "dailyIntRate": "0.0001",
            "term": 14,
            "maturityTime": 1572425888958
        }
    ]
}

Request via this endpoint to get the outstanding lend order list. Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page. The max pageSize is 100.

When a lending order is executed, the system will generate the lending history. The outstanding lend orders includes orders unrepaid and partially repaid.

HTTP REQUEST

GET /api/v1/margin/lend/trade/unsettled

Example

GET /api/v1/margin/lend/trade/unsettled?currency=BTC&currentPage=1&pageSize=50

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency

RESPONSES

Field	Description
tradeId	Trade ID
currency	Currency
size	Size executed
accruedInterest	Accrued interest. This value will decrease when borrower repays the interest.
repaid	Repaid size
dailyIntRate	Daily interest rate. e.g. 0.002 is 0.2%
term	Term (Unit: Day)
maturityTime	Maturity time (millisecond)

Get Settled Lend Order History

{
    "currentPage": 1,
    "pageSize": 1,
    "totalNum": 1,
    "totalPage": 1,
    "items": [
        {
            "tradeId": "5da59fe6f943c033b2b6440b",
            "currency": "BTC",
            "size": "0.51",
            "interest": "0.00004899",
            "repaid": "0.510041641",
            "dailyIntRate": "0.0001",
            "term": 7,
            "settledAt": 1571216254767,
            "note": "The account of the borrowers reached a negative balance, and the system has supplemented the loss via the insurance fund. Deposit funds: 0.51."
        }
    ]
}

Request via this endpoint to get the settled lend orders . Items are paginated and sorted to show the latest first. See the Pagination section for retrieving additional entries after the first page. The max pageSize is 100.

The settled lend orders include orders repaid fully or partially before or at the maturity time.

HTTP REQUEST

GET /api/v1/margin/lend/trade/settled

Example

GET /api/v1/margin/lend/trade/settled?currency=BTC&currentPage=1&pageSize=50

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency

RESPONSES

Field	Description
tradeId	Trade ID
currency	Currency
size	Size executed
interest	Total interest
repaid	Repaid size
dailyIntRate	Daily interest rate. e.g. 0.002 is 0.2%
term	Term (Unit: Day)
settledAt	Settlement time (millisecond)
note	Note. To note the account of the borrower reached a negative balance, and whether the insurance fund is repaid.

Get Account Lend Record

[
    {
        "currency": "BTC",
        "outstanding": "1.02",
        "filledSize": "0.91000213",
        "accruedInterest": "0.00000213",
        "realizedProfit": "0.000045261",
        "isAutoLend": false
    }
]

Request via this endpoint to get the lending history of the main account.

HTTP REQUEST

GET /api/v1/margin/lend/assets

Example

GET /api/v1/margin/lend/assets?currency=BTC

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	[Optional] Currency

RESPONSES

Field	Description
currency	Currency
outstanding	Outstanding size
filledSize	Size executed
accruedInterest	Accrued Interest
realizedProfit	Realized profit
isAutoLend	Auto-lend enabled or not

Lending Market Data

[
    {
        "dailyIntRate": "0.0001",
        "term": 7,
        "size": "1.02"
    }
]

Request via this endpoint to get the lending market data. The returned value is sorted based on the descending sequence of the daily interest rate and terms.

HTTP REQUEST

GET /api/v1/margin/market

Example

GET /api/v1/margin/market?currency=BTC&term=7

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency
term	int	[Optional] Term (Unit: Day)

RESPONSES

Field	Description
dailyIntRate	Daily interest rate. e.g. 0.002 is 0.2%
term	Term (Unit: Day)
size	Total size

Margin Trade Data

[
    {
        "tradeId": "5da6dba0f943c0c81f5d5db5",
        "currency": "BTC",
        "size": "0.51",
        "dailyIntRate": "0.0001",
        "term": 14,
        "timestamp": 1571216288958989641
    }
]

Request via this endpoint to get the last 300 fills in the lending and borrowing market. The returned value is sorted based on the descending sequence of the order execution time.

HTTP REQUEST

GET /api/v1/margin/trade/last

Example

GET /api/v1/margin/trade/last?currency=BTC

API KEY PERMISSIONS

This endpoint requires the "General" permission.

PARAMETERS

Param	Type	Description
currency	String	Currency

RESPONSES

Field	Description
tradeId	Trade ID
currency	Currency
size	Executed size
dailyIntRate	Daily interest rate. e.g. 0.002 is 0.2%
term	Term (Unit: Day)
timestamp	Time of execution in nanosecond

Isolated Margin

Query Isolated Margin Trading Pair Configuration

{
    "code":"200000",
    "data": [
        {
            "symbol": "EOS-USDC",
            "symbolName": "EOS-USDC",
            "baseCurrency": "EOS",
            "quoteCurrency": "USDC",
            "maxLeverage": 10,
            "flDebtRatio": "0.97",
            "tradeEnable": true,
            "autoRenewMaxDebtRatio": "0.96",
            "baseBorrowEnable": true,
            "quoteBorrowEnable": true,
            "baseTransferInEnable": true,
            "quoteTransferInEnable": true
        },
        {
            "symbol": "MANA-USDT",
            "symbolName": "MANA-USDT",
            "baseCurrency": "MANA",
            "quoteCurrency": "USDT",
            "maxLeverage": 10,
            "flDebtRatio": "0.9",
            "tradeEnable": true,
            "autoRenewMaxDebtRatio": "0.96",
            "baseBorrowEnable": true,
            "quoteBorrowEnable": true,
            "baseTransferInEnable": true,
            "quoteTransferInEnable": true
        }
    ]
}

This API endpoint returns the current isolated margin trading pair configuration.

HTTP Request

GET /api/v1/isolated/symbols

API KEY PERMISSIONS

This endpoint requires the General permissions

PARAMETERS

N/A

RESPONSES

Field	Description
symbol	The trading pair code
baseCurrency	Base currency type
quoteCurrency	Quote coin
symbolName	Trading pair name
maxLeverage	Maximum leverage
flDebtRatio	Liquidation debt ratio
tradeEnable	Trade switch
autoRenewMaxDebtRatio	During automatic renewal of the max debt ratio, the loan will only be renewed if it is lower than the debt ratio, with partial liquidation triggered for repayment if the debt ratio is in excess
baseBorrowEnable	base coin type borrow switch
quoteBorrowEnable	quote coin type borrow switch
baseTransferInEnable	base coin type transfer switch
quoteTransferInEnable	quote coin type transfer switch

Query Isolated Margin Account Info

{
    "code":"200000",
    "data": {
        "totalConversionBalance": "3.4939947",
        "liabilityConversionBalance": "0.00239066",
        "assets": [
            {
                "symbol": "MANA-USDT",
                "status": "CLEAR",
                "debtRatio": "0",
                "baseAsset": {
                    "currency": "MANA",
                    "totalBalance": "0",
                    "holdBalance": "0",
                    "availableBalance": "0",
                    "liability": "0",
                    "interest": "0",
                    "borrowableAmount": "0"
                },
                "quoteAsset": {
                    "currency": "USDT",
                    "totalBalance": "0",
                    "holdBalance": "0",
                    "availableBalance": "0",
                    "liability": "0",
                    "interest": "0",
                    "borrowableAmount": "0"
                }
            },
            {
                "symbol": "EOS-USDC",
                "status": "CLEAR",
                "debtRatio": "0",
                "baseAsset": {
                    "currency": "EOS",
                    "totalBalance": "0",
                    "holdBalance": "0",
                    "availableBalance": "0",
                    "liability": "0",
                    "interest": "0",
                    "borrowableAmount": "0"
                },
                "quoteAsset": {
                    "currency": "USDC",
                    "totalBalance": "0",
                    "holdBalance": "0",
                    "availableBalance": "0",
                    "liability": "0",
                    "interest": "0",
                    "borrowableAmount": "0"
                }
            }
        ]
    }
}

This API endpoint returns all isolated margin accounts of the current user.

HTTP Request

GET /api/v1/isolated/accounts

API KEY PERMISSIONS

This endpoint requires the General permissions

PARAMETERS

Param	Type	Description
balanceCurrency	String	[Optional] The pricing coin, currently only supports `USDT`, `KCS`, and `BTC`. Defaults to `BTC` if no value is passed.

RESPONSES

Field	Description
totalConversionBalance	The total balance of the isolated margin account (in the specified coin)
liabilityConversionBalance	Total liabilities of the isolated margin account (in the specified coin)
assets	Account list
assets.symbol	Trading pairs, with each trading pair indicating a position
assets.status	The position status: Existing liabilities-`DEBT`, No liabilities-`CLEAR`, Bankrupcy (after position enters a negative balance)-`BANKRUPTCY`, Existing borrowings-`IN_BORROW`, Existing repayments-`IN_REPAY`, Under liquidation-`IN_LIQUIDATION`, Under auto-renewal assets`-IN_AUTO_RENEW` .
debtRatio	Debt ratio
assets.baseAsset	base coin type asset info
assets.quoteAsset	quote coin type asset info
currency	Coin type Code
totalBalance	Current coin type asset amount
holdBalance	Current coin type frozen
availableBalance	The available balance (available assets - frozen assets)

Query Single Isolated Margin Account Info

{
    "code": "200000",
    "data": {
        "symbol": "MANA-USDT",
        "status": "CLEAR",
        "debtRatio": "0",
        "baseAsset": {
            "currency": "MANA",
            "totalBalance": "0",
            "holdBalance": "0",
            "availableBalance": "0",
            "liability": "0",
            "interest": "0",
            "borrowableAmount": "0"
        },
        "quoteAsset": {
            "currency": "USDT",
            "totalBalance": "0",
            "holdBalance": "0",
            "availableBalance": "0",
            "liability": "0",
            "interest": "0",
            "borrowableAmount": "0"
        }
    }
}

This API endpoint returns the info on a single isolated margin account of the current user.

HTTP Request

GET /api/v1/isolated/account/{symbol}

API KEY PERMISSIONS

This endpoint requires the General permissions

PARAMETERS

Param	Type	Description
symbol	String	Trading pair, e.g.: `BTC-USDT`

RESPONSES

Field	Description
symbol	Trading pair
status	The position status: Existing liabilities-`DEBT`, No liabilities-`CLEAR`, Bankrupcy (after position enters a negative balance)-`BANKRUPTCY`, Existing borrowings-`IN_BORROW`, Existing repayments-`IN_REPAY`, Under liquidation-`IN_LIQUIDATION`, Under auto-renewal-`IN_AUTO_RENEW` (permissions per state)
quoteAsset	quote coin type asset info
currency	Coin type Code
totalBalance	Current coin type asset amount
availableBalance	Amount of current coin available
holdBalance	Amount of current coin frozen
liability	The principal of the of current coin liability (the outstanding principal)
interest	The interest of the liability of the current coin (the outstanding interest)
borrowableAmount	The borrowable amount

Isolated Margin Borrowing

{
    "code": "200000",
    "data": {
        "orderId": "62baad0aaafc8000014042b3",
        "currency": "USDT",
        "actualSize": "10"
    }
}

This API endpoint initiates isolated margin borrowing.

HTTP Request

POST /api/v1/isolated/borrow

API KEY PERMISSIONS

This endpoint requires the Trade permissions

PARAMETERS

Param	Type	Description
symbol	String	Trading pair, e.g.: `BTC-USDT`
currency	String	Borrowed coin type
size	BigDecimal	Borrowed amount
borrowStrategy	String	Borrowing strategy: `FOK`, `IOC`
maxRate	BigDecimal	[Optional] Max interest rate, defaults to all interest rates if left blank
period	String	[Optional] The term in days. Defaults to all terms if left blank. `7`,`14`,`28`

RESPONSES

Field	Description
orderId	Borrow order ID
currency	Borrowed coin type
actualBorrowSize	Actual borrowed amount

Query Outstanding Repayment Records

{
    "success": true,
    "code": "200",
    "msg": "success",
    "retry": false,
    "data": {
        "currentPage": 1,
        "pageSize": 10,
        "totalNum": 6,
        "totalPage": 1,
        "items": [
            {
                "loanId": "62aec83bb51e6f000169a3f0",
                "symbol": "BTC-USDT",
                "currency": "USDT",
                "liabilityBalance": "10.02000016",
                "principalTotal": "10",
                "interestBalance": "0.02000016",
                "createdAt": 1655621691869,
                "maturityTime": 1656226491869,
                "period": 7,
                "repaidSize": "0",
                "dailyInterestRate": "0.001"
            },
            {
                "loanId": "62aa94e52a3fbb0001277fd1",
                "symbol": "BTC-USDT",
                "currency": "USDT",
                "liabilityBalance": "10.05166708",
                "principalTotal": "10",
                "interestBalance": "0.05166708",
                "createdAt": 1655346405447,
                "maturityTime": 1655951205447,
                "period": 7,
                "repaidSize": "0",
                "dailyInterestRate": "0.001"
            }
        ]
    }
}

This API endpoint is used to query the outstanding repayment records of isolated margin positions.

HTTP Request

GET /api/v1/isolated/borrow/outstanding

Example

GET /api/v1/isolated/borrow/outstanding?symbol=BTC-USDT&currency=USDT

API KEY PERMISSIONS

This endpoint requires the General permissions

PARAMETERS

Param	Type	Description
symbol	String	[Optional] Trading pair, e.g.: `BTC-USDT`
currency	String	[Optional] Coin type
pageSize	int	[Optional] Page size [`10`-`50`]
currentPage	int	[Optional] Current page number [`1`-`100`]

RESPONSES

Field	Description
loanId	Trade id
symbol	Trading pair
currency	Coin type
liabilityBalance	Remaining liabilities
principalTotal	Principal
interestBalance	Accrued interest
createdAt	Trade time, timestamp
maturityTime	Maturity date, timestamp
period	Term
repaidSize	Amount repaid
dailyInterestRate	Daily interest

Query Repayment Records

{
    "code": "200000",
    "data": {
        "currentPage": 1,
        "pageSize": 10,
        "totalNum": 30,
        "totalPage": 3,
        "items": [
            {
                "loanId": "628df5787818320001c79c8b",
                "symbol": "BTC-USDT",
                "currency": "USDT",
                "principalTotal": "10",
                "interestBalance": "0.07000056",
                "repaidSize": "10.07000056",
                "createdAt": 1653470584859,
                "period": 7,
                "dailyInterestRate": "0.001",
                "repayFinishAt": 1654075506416
            },
            {
                "loanId": "628c570f7818320001d52b69",
                "symbol": "BTC-USDT",
                "currency": "USDT",
                "principalTotal": "11",
                "interestBalance": "0.07699944",
                "repaidSize": "11.07699944",
                "createdAt": 1653364495783,
                "period": 7,
                "dailyInterestRate": "0.001",
                "repayFinishAt": 1653969432251
            }
        ]
    }
}

This API endpoint is used to query the repayment records of isolated margin positions.

HTTP Request

GET /api/v1/isolated/borrow/repaid

Example

GET /api/v1/isolated/borrow/repaid?symbol=BTC-USDT&currency=USDT

API KEY PERMISSIONS

This endpoint requires the General permissions

PARAMETERS

Param	Type	Description
symbol	String	[Optional] Trading pair, e.g.: `BTC-USDT`
currency	String	[Optional] Coin type
pageSize	int	[Optional] Page size [`10`-`50`]
currentPage	int	[Optional] Current page number [`1`-`100`]

RESPONSES

Field	Description
loanId	Trade id
symbol	Trading pair
currency	Coin type
principalTotal	Principal
interestBalance	Accrued interest
repaidSize	Amount repaid
createdAt	Trade time, timestamp
period	Term
dailyInterestRate	Daily interest
repayFinishAt	Repayment time

Quick Repayment

//request
{
    "currency": "BTC",
    "seqStrategy": "HIGHEST_RATE_FIRST",
    "size": 1.9,
    "symbol": "BTC-USDT"
}

//response
{
    "code": "200000",
    "data": null
}

This API endpoint is used to initiate quick repayment for isolated margin accounts

HTTP Request

POST /api/v1/isolated/repay/all

API KEY PERMISSIONS

This endpoint requires the Trade permissions

PARAMETERS

Param	Type	Description
symbol	String	Trading pair, e.g.: `BTC-USDT`
currency	String	Repayment coin type
size	BigDecimal	Repayment amount
seqStrategy	String	Repayment sequence strategy, `RECENTLY_EXPIRE_FIRST`: Maturity date priority (the loan with the closest maturity is repaid first), `HIGHEST_RATE_FIRST`: Interest rate priority (the loan with the highest interest rate is repaid first)

RESPONSES

When the system returns HTTP status code 200 and system code 200000, it indicates that the response is successful.

Single Repayment

//request
{
    "currency": "BTC",
    "loanId": 8765321,
    "size": 1.9,
    "symbol": "BTC-USDT"
}

//response
{
    "code": "200000",
    "data": null
}

This API endpoint is used to initiate quick repayment for single margin accounts

HTTP Request

POST /api/v1/isolated/repay/single

API KEY PERMISSIONS

This endpoint requires the Trade permissions

PARAMETERS

Param	Type	Description
symbol	String	Trading pair, e.g.: `BTC-USDT`
currency	String	Repayment coin type
size	BigDecimal	Repayment amount
loanId	String	Trade order number; when this field is configured, the sequence strategy is invalidated

RESPONSES

When the system returns HTTP status code 200 and system code 200000, it indicates that the response is successful.

Margin Trading(V3)

Both v1 and v3 versions can be used normally

1 Margin Borrowing

{
    "success": true,
    "code": "200",
    "msg": "success",
    "retry": false,
    "data": {
        "orderNo": "5da6dba0f943c0c81f5d5db5",
        "actualSize": 10
    }
}

This API endpoint is used to initiate an application for cross or isolated margin borrowing.

HTTP REQUEST

POST /api/v3/margin/borrow

Example

POST /api/v3/margin/borrow

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Field	Type	Description
isIsolated	Boolean	[Optional] true-isolated ,false-cross;default is false
symbol	String	[Optional] Trading pair, mandatory for isolated margin account
currency	String	[Mandatory] Borrowed currency
size	BigDecimal	[Mandatory] Borrowed amount
timeInForce	String	[Mandatory] timeInForce: IOC, FOK

RESPONSES

Field	Description
orderNo	Borrow order number
actualSize	Actual borrowed amount

2 Repayment

{
    "success": true,
    "code": "200",
    "msg": "success",
    "retry": false,
    "data": {
        "orderNo": "5da6dba0f943c0c81f5d5db5",
        "actualSize": 10
    }
}

This API endpoint is used to initiate an application for the repayment of cross or isolated margin borrowing.

HTTP REQUEST

POST /api/v3/margin/repay

Example

POST /api/v3/margin/repay

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Field	Type	Description
isIsolated	Boolean	[Optional] true-isolated ,false-cross;default is false
symbol	String	[Optional] trading pair, mandatory for isolated margin account
currency	String	[Mandatory] Currency
size	BigDecimal	[Mandatory] Repayment amount

RESPONSES

Field	Description
orderNo	Repayment order number
actualSize	Actual repayment amount

3 Get Margin Borrowing History

{
    "currentPage": 1,
    "pageSize": 50,
    "totalNum": 1,
    "totalPage": 1,
    "items": [
        {
            "orderNo": "5da6dba0f943c0c81f5d5db5",
            "symbol": "BTC-USDT",
            "currency": "USDT",
            "size": 10,
            "actualSize": 10,
            "status": "DONE",
            "createdTime": 1555056425000
        }
    ]
}

This API endpoint is used to get the borrowing orders for cross and isolated margin accounts

HTTP REQUEST

GET /api/v3/margin/borrow

Example

GET /api/v3/margin/borrow

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency
isIsolated	Boolean	[Optional] true-isolated ,false-cross;default is false
symbol	String	[Optional] trading pair, mandatory for isolated margin account
orderNo	String	[Optional] Order number
startTime	Long	[Optional] Start time
endTime	Long	[Optional] End time
currentPage	Int	[Optional] Current query page, with a starting value of 1. Default:1
pageSize	Int	[Optional] Number of results per page. Default is 50, minimum is 10, maximum is 500.

RESPONSES

Field	Description
orderNo	Borrow order ID
symbol	Isolated margin trading pair; empty for cross margin
currency	Currency
size	Initiated borrowing amount
actualSize	Actual borrowed amount
status	Status
createdTime	Time of borrowing

Remarks

The maximum period for queries should not exceed 30 days. If startTime and endTime are not passed, data from the last 7 days will be returned by default. You can only check data from the last 6 months.

4 Get Repayment History

{
    "currentPage": 1,
    "pageSize": 50,
    "totalNum": 1,
    "totalPage": 1,
    "items": {
        "orderNo": "5da6dba0f943c0c81f5d5db5",
        "symbol": "BTC-USDT",
        "currency": "USDT",
        "size": 10,
        "actualSize": 10,
        "status": "DONE",
        "createdTime": 1555056425000
    }
}

This API endpoint is used to get the repayment orders for cross and isolated margin accounts.

HTTP REQUEST

GET /api/v3/margin/repay

Example

GET /api/v3/margin/repay

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency
isIsolated	Boolean	[Optional] true-isolated ,false-cross;default is false
symbol	String	[Optional] trading pair, mandatory for isolated margin account
orderNo	String	[Optional] Order number
startTime	Long	[Optional] Start time
endTime	Long	[Optional] End time
currentPage	Int	[Optional] Current query page, with a starting value of 1. Default:1
pageSize	Int	[Optional] Number of results per page. Default is 50, minimum is 10, maximum is 500.

RESPONSES

Field	Description
orderNo	Repayment order number
symbol	Isolated margin trading pair; empty for cross margin
currency	Currency
size	Initiated repayment amount
principal	Principal to be paid
interest	Interest to be paid
status	Status Repaying, Completed, Failed
createdTime	Time of repayment

Error code:

External Code	message
400400	Parameter error
130201	Please open margin trade before proceeding
130201	Your account has restricted access to certain features. Please contact customer service for further assistance
130201	The lending function is currently disabled
130202	The system is renewing the loan automatically. Please try again later
130202	The system is processing liquidation. Please try again later
130202	Please pay off all debts before proceeding
130202	A borrowing is in progress. Please try again later
130202	A timeout has occurred. The system is currently processing
130202	The system is renewing the loan automatically. Please try again later
130202	The system is confirming position liquidation. Please try again later
130202	The system is processing. Please try again later
130202	There are outstanding borrowing orders that need to be settled. Please try again later
130203	Insufficient account balance
130203	The maximum borrowing amount has been exceeded. Your remaining available borrowing: {1}{0}
130204	As the total lending amount for platform leverage {0} reaches the platform's maximum position limit, the system suspends the borrowing function of leverage {1}
130204	As the total position of platform leverage {0} reaches the platform's maximum leverage loan limit, the system suspends leverage the borrowing function of leverage {1}
130204	According to the platform's maximum borrowing limit, the maximum amount you can borrow is {0}{1}

Lending Market(V3)

1 Get Currency Information

{
    "currentPage": 1,
    "pageSize": 100,
    "totalNum": 1,
    "totalPage": 1,
    "items": [
        {
            "currency": "BTC",
            "purchaseEnable": true,
            "redeemEnable": true,
            "increment": "1",
            "minPurchaseSize": "10",
            "minInterestRate": "0.004",
            "maxInterestRate": "0.02",
            "interestIncrement": "0.0001",
            "maxPurchaseSize": "20000",
            "marketInterestRate": "0.009",
            "autoPurchaseEnable": true
        }
    ]
}

This API endpoint is used to get the information about the currencies available for lending.

HTTP REQUEST

GET /api/v3/project/list

Example

GET /api/v3/project/list?currency=BTC

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Field	Type	Description
currency	String	[Optional] Currency

RESPONSES

Field	Description
currency	Currency
purchaseEnable	Support subscription
redeemEnable	Support redemption
increment	Increment precision for subscription and redemption
minPurchaseSize	Minimum subscription amount
minInterestRate	Minimum annualized interest rate
maxInterestRate	Maximum annualized interest rate
interestIncrement	Increment precision for interest; default is 0.0001
maxPurchaseSize	Maximum subscription limit per user
marketInterestRate	Latest market annualized interest rate
autoPurchaseEnable	Auto-Subscribe enabled?: true: enable, false: disable

2 Get Interest Rates

[
    {
        "time": "202303261200",
        "marketInterestRate": "0.003"
    },
    {
        "time": "202303261300",
        "marketInterestRate": "0.004"
    }
]

This API endpoint is used to get the interest rates of the margin lending market over the past 7 days.

HTTP REQUEST

GET /api/v3/project/marketInterestRate

Example

GET /api/v3/project/marketInterestRate?currency=BTC

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency

RESPONSES

Field	Description
time	Time: YYYYMMDDHH00
marketInterestRate	Market interest rate

3 Subscription

{
    "orderNo": "5da6dba0f943c0c81f5d5db5"
}

Initiate subscriptions of margin lending.

HTTP REQUEST

POST /api/v3/purchase

Example

POST /api/v3/purchase

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency
size	String	[Mandatory] Subscription amount
interestRate	String	[Mandatory] Subscription interest rate

RESPONSES

Field	Description
orderNo	Subscription order number If there already exists a subscription order with a specific currency and the interest rate, the latest orderNo will be returned.

4 Redemption

{
    "orderNo": "5da6dba0f943c0c81f5d5db5"
}

Initiate redemptions of margin lending.

HTTP REQUEST

POST /api/v3/redeem

Example

POST /api/v3/redeem

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency
size	String	[Mandatory] Redemption amount
purchaseOrderNo	String	[Mandatory] Subscription order number

RESPONSES

Field	Description
orderNo	Redemption order number

5 Modify Subscription Orders

{
    "success": true,
    "code": "200",
    "msg": "success",
    "retry": false
}

This API endpoint is used to update the interest rates of subscription orders, which will take effect at the beginning of the next hour.

HTTP REQUEST

POST /api/v3/lend/purchase/update

Example

POST /api/v3/lend/purchase/update

API KEY PERMISSIONS

This endpoint requires the Trade permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency
purchaseOrderNo	String	[Mandatory] Subscription order number
interestRate	String	[Mandatory] Modified subscription interest rate

RESPONSES

Void

6 Get Redemption Orders

 {
    "currentPage": 1,
    "pageSize": 100,
    "totalNum": 1,
    "totalPage": 1,
    "items": [
        {
            "currency": "BTC",
            "purchaseOrderNo": "5da6dba0f943c0c81f5d5db5",
            "redeemOrderNo": "5da6dbasdffga1f5d5dfsb5",
            "redeemAmount": "300000",
            "receiptAmount": "250000",
            "applyTime": 1669508513820,
            "status": "PENDING",
        }
    ]
}

This API endpoint provides pagination query for the redemption orders.

HTTP REQUEST

GET /api/v3/redeem/orders

Example

GET /api/v3/redeem/orders?currency=BTC&status=DONE&currentPage=1&pageSize=10

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency
redeemOrderNo	String	[Optional] Redemption order number
status	String	[Mandatory] DONE-completed; PENDING-settling
currentPage	Int	[Optional] Current page; default is 1
pageSize	Int	[Optional] Page size; 1<=pageSize<=100; default is 50

RESPONSES

Field	Description
currency	Currency
purchaseOrderNo	Subscription order number
redeemOrderNo	Redemption order number
receiptSize	Redeemed amount
applyTime	Time of redemption
status	Status: DONE-completed; PENDING-settling

7 Get Subscription Orders

{
    "currentPage": 1,
    "pageSize": 100,
    "totalNum": 1,
    "totalPage": 1,
    "items": [
        {
            "currency": "BTC",
            "purchaseOrderNo": "5da6dba0f943c0c81f5d5db5",
            "purchaseAmount": "300000",
            "lendAmount": "0",
            "redeemAmount": "300000",
            "interestRate": "0.0003",
            "incomeAmount": "200",
            "applyTime": 1669508513820,
            "status": "DONE",
        }
    ]
}

This API endpoint provides pagination query for the subscription orders.

HTTP REQUEST

GET /api/v3/purchase/orders

Example

GET /api/v3/purchase/orders?currency=BTC&status=DONE&currentPage=1&pageSize=10

API KEY PERMISSIONS

This endpoint requires the General permission.

PARAMETERS

Field	Type	Description
currency	String	[Mandatory] Currency
purchaseOrderNo	String	[Optional] Subscription order number
status	String	[Mandatory] DONE-completed; PENDING-settling
currentPage	Int	[Optional] Current page; default is 1
pageSize	Int	[Optional] Page size; 1<=pageSize<=100; default is 50

RESPONSES

Field	Description
currency	Currency
purchaseOrderNo	Subscription order number
purchaseSize	Total subscription amount
matchSize	Executed amount
redeemSize	Redeemed amount
interestRate	Target annualized interest rate
incomeSize	Total earnings
applyTime	Time of subscription
status	Status: DONE-completed; PENDING-settling

Error code:

External Code	message
130101	The currency does not support subscription.
130101	Interest rate increment error.
130101	Interest rate exceeds limit.
130101	The subscription amount exceeds the limit for a single subscription.
130101	Subscription amount increment error.
130101	Redemption amount increment error
130101	Interest rate exceeds limit.
130102	Maximum subscription amount has been exceeded.
130103	Subscription order does not exist.
130104	Maximum number of subscription orders has been exceeded.
130105	Insufficient balance.
130106	The currency does not support redemption.
130107	Redemption amount exceeds subscription amount.
130108	Redemption order does not exist.

Others

Server Time

{  
    "code":"200000",
    "msg":"success",
    "data":1546837113087
}

Get the server time.

HTTP REQUEST

GET /api/v1/timestamp

Example

GET /api/v1/timestamp

PARAMETERS

N/A

Service Status

{    
  "code": "200000",     
  "data": {

      "status": "open",                //open:normal transaction, close:Stop Trading/Maintenance, cancelonly:can only cancel the order but not place order
      "msg":  "upgrade match engine"   //remark for operation
    }
}

Get the service status

HTTP REQUEST

GET /api/v1/status

Example

GET /api/v1/status

PARAMETERS

N/A

RESPONSES

Field	Description
status	Status of service: open：normal transaction, close：Stop Trading/Maintenance, cancelonly：can only cancel the order but not place order
msg	Remark for operation

Websocket Feed

While there is a strict access frequency control for REST API, we highly recommend that API users utilize Websocket to get the real-time data.

Apply connect token

{
    "code": "200000",
    "data": {
        "token": "2neAiuYvAU61ZDXANAGAsiL4-iAExhsBXZxftpOeh_55i3Ysy2q2LEsEWU64mdzUOPusi34M_wGoSf7iNyEWJ4aBZXpWhrmY9jKtqkdWoFa75w3istPvPtiYB9J6i9GjsxUuhPw3BlrzazF6ghq4L_u0MhKxG3x8TeN4aVbNiYo=.mvnekBb8DJegZIgYLs2FBQ==",
        "instanceServers": [{
            "endpoint": "wss://ws-api-spot.kucoin.com/",    //It is recommended to use a dynamic URL, which may change
            "encrypt": true,
            "protocol": "websocket",
            "pingInterval": 18000,
            "pingTimeout": 10000
        }]
    }
}

You need to apply for one of the two tokens below to create a websocket connection.

Public token (No authentication required):

If you only use public channels (e.g. all public market data), please make request as follows to obtain the server list and temporary public token:

HTTP REQUEST

POST /api/v1/bullet-public

Private channels (Authentication request required):

For private channels and messages (e.g. account balance notice), please make request as follows after authorization to obtain the server list and authorized token.

HTTP REQUEST

POST /api/v1/bullet-private

Response

Field	Description
endpoint	Websocket server address for establishing connection
protocol	Protocol supported
encrypt	Indicate whether SSL encryption is used
pingInterval	Recommended to send ping interval in millisecond
pingTimeout	After such a long time(millisecond), if you do not receive pong, it will be considered as disconnected.
token	token

Create connection

var socket = new WebSocket("wss://ws-api-spot.kucoin.com/?token=xxx&[connectId=xxxxx]");

When the connection is successfully established, the system will send a welcome message.

connectId: the connection id, a unique value taken from the client side. Both the id of the welcome message and the id of the error message are connectId.

If you only want to receive private messages of the specified topic, please set privateChannel to true when subscribing.

{
    "id":"hQvf8jkno",
    "type":"welcome"
}

Ping

{
    "id":"1545910590801",
    "type":"ping"
}

To prevent the TCP link being disconnected by the server, the client side needs to send ping messages every pingInterval time to the server to keep alive the link.

After the ping message is sent to the server, the system would return a pong message to the client side.

If the server has not received any message from the client for a long time, the connection will be disconnected.

{
    "id":"1545910590801",
    "type":"pong"
}

{
    "id": 1545910660739,                          //The id should be an unique value
    "type": "subscribe",
    "topic": "/market/ticker:BTC-USDT,ETH-USDT",  //Topic needs to be subscribed. Some topics support to divisional subscribe the informations of multiple trading pairs through ",".
    "privateChannel": false,                      //Adopted the private channel or not. Set as false by default.
    "response": true                              //Whether the server needs to return the receipt information of this subscription or not. Set as false by default.
}

To subscribe channel messages from a certain server, the client side should send subscription message to the server.

If the subscription succeeds, the system will send ack messages to you, when the response is set as true.

{
    "id":"1545910660739",
    "type":"ack"
}

While there are topic messages generated, the system will send the corresponding messages to the client side. For details about the message format, please check the definitions of topics.

Parameters

ID

ID is unique string to mark the request which is same as id property of ack.

Topic

The topic you want to subscribe to.

PrivateChannel

For some specific topics (e.g. /market/level2), privateChannel is available. The default value of privateChannel is False. If the privateChannel is set to true, the user will only receive messages related himself on the topic.

Response

If the response is set as true, the system will return the ack messages after the subscription succeed.

UnSubscribe

Unsubscribe from topics you have subscribed to.

{
    "id": "1545910840805",                            //The id should be an unique value
    "type": "unsubscribe",
    "topic": "/market/ticker:BTC-USDT,ETH-USDT",      //Topic needs to be unsubscribed. Some topics support to divisional unsubscribe the informations of multiple trading pairs through ",".
    "privateChannel": false,
    "response": true                                  //Whether the server needs to return the receipt information of this subscription or not. Set as false by default.
}

{
    "id": "1545910840805",
    "type": "ack"
}

Parameters

ID

Unique string to mark the request.

Topic

The topic you want to subscribe.

PrivateChannel

If the privateChannel is set to true, the private topic will be unsubscribed.

Response

If the response is set as true, the system would return the ack messages after the unsubscription succeed.

Multiplex

In one physical connection, you could open different multiplex tunnels to subscribe different topics for different data.

For example, enter the command below to open bt1 multiple tunnel :

{"id": "1Jpg30DEdU", "type": "openTunnel", "newTunnelId": "bt1", "response": true}

Add “tunnelId” in the command:

{"id": "1JpoPamgFM", "type": "subscribe", "topic": "/market/ticker:KCS-BTC"，"tunnelId": "bt1", "response": true}

You would then, receive messages corresponding to the id tunnelIId:

{"id": "1JpoPamgFM", "type": "message", "topic": "/market/ticker:KCS-BTC", "subject": "trade.ticker", "tunnelId": "bt1", "data": {...}}

To close the tunnel, you can enter the command below:

{"id": "1JpsAHsxKS", "type": "closeTunnel", "tunnelId": "bt1", "response": true}

Limitations

The multiplex tunnel is provided for API users only.
The maximum multiplex tunnels available: 5.

Sequence Numbers

The sequence field exists in order book, trade history and snapshot messages by default and the Level 3 and Level 2 data works to ensure the full connection of the sequence. If the sequence is non-sequential, please enable the calibration logic.

General Logic for Message Judgement in Client Side

1.Judge message type. There are three types of messages at present: message (the commonly used messages for push), notice (the notices generally used), and command (consecutive command).

2.Judge messages by topic. You could judge the message type through the topic.

3.Judge messages by subject. For the same type of messages with the same topic, you could judge the type of messages through their subjects.

Public Channels

Symbol Ticker


{
    "id": 1545910660739,
    "type": "subscribe",
    "topic": "/market/ticker:BTC-USDT",
    "response": true
}

{
    "type":"message",
    "topic":"/market/ticker:BTC-USDT",
    "subject":"trade.ticker",
    "data":{
        "sequence":"1545896668986", // Sequence number
        "price":"0.08",             // Last traded price
        "size":"0.011",             //  Last traded amount
        "bestAsk":"0.08",          // Best ask price
        "bestAskSize":"0.18",      // Best ask size
        "bestBid":"0.049",         // Best bid price
        "bestBidSize":"0.036"     // Best bid size
    }
}

Topic: /market/ticker:{symbol},{symbol}...

Push frequency: once every 100ms

Subscribe to this topic to get the push of BBO changes.

Please note that more information may be added to messages from this channel in the near future.

All Symbols Ticker


{
    "id": 1545910660739,                          
    "type": "subscribe",
    "topic": "/market/ticker:all",
    "response": true                              
}

{
    "type":"message",
    "topic":"/market/ticker:all",
    "subject":"BTC-USDT",
    "data":{
        "sequence":"1545896668986",
        "bestAsk":"0.08",
        "size":"0.011",
        "bestBidSize":"0.036",
        "price":"0.08",
        "bestAskSize":"0.18",
        "bestBid":"0.049"
    }
}

Topic: /market/ticker:all

Push frequency: once every 100ms

Subscribe to this topic to get the push of all market symbols BBO change.

Symbol Snapshot

{
    "type": "message",
    "topic": "/market/snapshot:KCS-BTC",
    "subject": "trade.snapshot",
    "data": {
        "sequence": "1545896669291",
        "data": {
            "trading": true,
            "symbol": "KCS-BTC",
            "buy": 0.00011,
            "sell": 0.00012,
            "sort": 100,    //sorting number
            "volValue": 3.13851792584,   //total
            "baseCurrency": "KCS",
            "market": "BTC",
            "quoteCurrency": "BTC",
            "symbolCode": "KCS-BTC",
            "datetime": 1548388122031,
            "high": 0.00013,
            "vol": 27514.34842,
            "low": 0.0001,
            "changePrice": -1.0e-5,
            "changeRate": -0.0769,
            "lastTradedPrice": 0.00012,
            "board": 0,     //Trading pair partition： 0.primary partition 1.KuCoin Plus", example = "1"
            "mark": 0       //Trading Pair Mark： 0.default 1.ST. 2.NEW", example = "1"
        }
    }
}

Topic: /market/snapshot:{symbol}

Push frequency: once every 2s

Subscribe to get snapshot data for a single symbol.

Market Snapshot

{
    "type": "message",
    "topic": "/market/snapshot:BTC",
    "subject": "trade.snapshot",
    "data": {
        "sequence": "1545896669291",
        "data": [
            {
                "trading": true,
                "symbol": "KCS-BTC",
                "buy": 0.00011,
                "sell": 0.00012,
                "sort": 100,    //sorting number
                "volValue": 3.13851792584,
                "baseCurrency": "KCS",
                "market": "BTC",
                "quoteCurrency": "BTC",
                "symbolCode": "KCS-BTC",
                "datetime": 1548388122031,
                "high": 0.00013,
                "vol": 27514.34842,
                "low": 0.0001,
                "changePrice": -1.0e-5,
                "changeRate": -0.0769,
                "lastTradedPrice": 0.00012,
                "board": 0,     //Trading pair partition： 0.primary partition 1.KuCoin Plus", example = "1"
                "mark": 0       //Trading Pair Mark： 0.default 1.ST. 2.NEW", example = "1"
          }
       ]
    }
}

Topic: /market/snapshot:{market}

Push frequency: once every 2s

Subscribe this topic to get the snapshot data of for the entire market.

Level-2 Market Data

{
    "id": 1545910660740,                          
    "type": "subscribe",
    "topic": "/market/level2:BTC-USDT",
    "response": true                              
}

Topic: /market/level2:{symbol},{symbol}...

Push frequency:real-time

Subscribe to this topic to get Level2 order book data.

When the websocket subscription is successful, the system would send the increment change data pushed by the websocket to you.

{
    "type": "message",
    "topic": "/market/level2:BTC-USDT",
    "subject": "trade.l2update",
    "data": {
        "changes": {
            "asks": [
                [
                    "18906",//price
                    "0.00331",//size
                    "14103845"//sequence
                ],
                [
                    "18907.3",
                    "0.58751503",
                    "14103844"
                ]
            ],
            "bids": [
                [
                    "18891.9",
                    "0.15688",
                    "14103847"
                ]
            ]
        },
        "sequenceEnd": 14103847,
        "sequenceStart": 14103844,
        "symbol": "BTC-USDT",
        "time": 1663747970273//milliseconds
    }
}

Calibration procedure：

After receiving the websocket Level 2 data flow, cache the data.
Initiate a REST request to get the snapshot data of Level 2 order book.
Playback the cached Level 2 data flow.
Apply the new Level 2 data flow to the local snapshot to ensure that sequenceStart(new)<=sequenceEnd+1(old) and sequenceEnd(new) > sequenceEnd(old). The sequence on each record in changes only represents the last modification of the corresponding sequence of the price, and does not serve as a basis for judging message continuity.
Update the level2 full data based on sequence according to the price and size. If the price is 0, ignore the messages and update the sequence. If the size=0, update the sequence and remove the price of which the size is 0 out of level 2. For other cases, please update the price.

Example

Take BTC/USDT as an example, suppose the current order book data in level 2 is as follows:

After subscribing to the channel, you would receive changes as follows:

... "asks":[ ["3988.59","3", 16], // ignore it because sequence = 16 ["3988.61","0", 19], // Remove 3988.61 ["3988.62","8", 15], // ignore it because sequence < 16 ] "bids":[ ["3988.50", "44", "18"] // Update size of 3988.50 to 44 ] "sequenceEnd": 15, "sequenceStart": 19, ...

Get a snapshot of the order book through a REST request (Get Order Book) to build a local order book. Suppose that data we got is as follows:

... "sequence": "16", "asks":[ ["3988.62","8"],//[Price, Size] ["3988.61","32"], ["3988.60","47"], ["3988.59","3"], ] "bids":[ ["3988.51","56"], ["3988.50","15"], ["3988.49","100"], ["3988.48","10"] ] ...

The current data on the local order book is as follows:

| Price | Size | Side | |---------|-----|------| | 3988.62 | 8 | Sell | | 3988.61 | 32 | Sell | | 3988.60 | 47 | Sell | | 3988.59 | 3 | Sell | | 3988.51 | 56 | Buy | | 3988.50 | 15 | Buy | | 3988.49 | 100 | Buy | | 3988.48 | 10 | Buy |

In the beginning, the sequence of the order book is 16. Discard the feed data of sequence that is below or equals to 16, and apply playback the sequence [18,19] to update the snapshot of the order book. Now the sequence of your order book is 19 and your local order book is up-to-date.

Diff:

Update size of 3988.50 to 44 (Sequence 18)
Remove 3988.61 (Sequence 19)

Now your current order book is up-to-date and final data is as follows:

| Price | Size | Side | |---------|-----|------| | 3988.62 | 8 | Sell | | 3988.60 | 47 | Sell | | 3988.59 | 3 | Sell | | 3988.51 | 56 | Buy | | 3988.50 | 44 | Buy | | 3988.49 | 100 | Buy | | 3988.48 | 10 | Buy |

Level2 - 5 best ask/bid orders

{
    "type": "message",
    "topic": "/spotMarket/level2Depth5:BTC-USDT",
    "subject": "level2",
    "data": {
          "asks":[
            ["9989","8"],    //price, size
            ["9990","32"],
            ["9991","47"],
            ["9992","3"],
            ["9993","3"]
        ],
        "bids":[
            ["9988","56"],
            ["9987","15"],
            ["9986","100"],
            ["9985","10"],
            ["9984","10"]
        ],
        "timestamp": 1586948108193
    }
}

Topic: /spotMarket/level2Depth5:{symbol},{symbol}...

Push frequency: once every 100ms

The system will return the 5 best ask/bid orders data, which is the snapshot data of every 100 milliseconds (in other words, the 5 best ask/bid orders data returned every 100 milliseconds in real-time).

Level2 - 50 best ask/bid orders

{
    "type": "message",
    "topic": "/spotMarket/level2Depth50:BTC-USDT",
    "subject": "level2",
    "data": {
          "asks":[
            ["9993","3"],     //price,size
            ["9992","3"],
            ["9991","47"],
            ["9990","32"],
            ["9989","8"]
        ],
        "bids":[
            ["9988","56"],
            ["9987","15"],
            ["9986","100"],
            ["9985","10"],
            ["9984","10"]
        ]
        "timestamp": 1586948108193
    }
}

Topic: /spotMarket/level2Depth50:{symbol},{symbol}...

Push frequency: once every 100ms

The system will return the 50 best ask/bid orders data, which is the snapshot data of every 100 milliseconds (in other words, the 50 best ask/bid orders data returned every 100 milliseconds in real-time).

Klines

{
    "type":"message",
    "topic":"/market/candles:BTC-USDT_1hour",
    "subject":"trade.candles.update",
    "data":{
        "symbol":"BTC-USDT",    // symbol
        "candles":[
            "1589968800",   // Start time of the candle cycle
            "9786.9",       // open price
            "9740.8",       // close price
            "9806.1",       // high price
            "9732",         // low price
            "27.45649579",  // Transaction volume
            "268280.09830877"   // Transaction amount
        ],
        "time":1589970010253893337  // now（us）
    }
}

Topic: /market/candles:{symbol}_{type}

Push frequency: real-time

Param	Description
symbol	symbol
type	`1min`, `3min`, `15min`, `30min`, `1hour`, `2hour`, `4hour`, `6hour`, `8hour`, `12hour`, `1day`, `1week`

Subscribe to this topic to get K-Line data.

Match Execution Data

{
    "id": 1545910660741,                          
    "type": "subscribe",
    "topic": "/market/match:BTC-USDT",
    "privateChannel": false,                      
    "response": true                              
}

Topic: /market/match:{symbol},{symbol}...

Push frequency: real-time

Subscribe to this topic to get the matching event data flow of Level 3.

For each order traded, the system would send you the match messages in the following format.

{
    "type":"message",
    "topic":"/market/match:BTC-USDT",
    "subject":"trade.l3match",
    "data":{
        "sequence":"1545896669145",
        "type":"match",
        "symbol":"BTC-USDT",
        "side":"buy",
        "price":"0.08200000000000000000",
        "size":"0.01022222000000000000",
        "tradeId":"5c24c5da03aa673885cd67aa",
        "takerOrderId":"5c24c5d903aa6772d55b371e",
        "makerOrderId":"5c2187d003aa677bd09d5c93",
        "time":"1545913818099033203"
    }
}

Index Price

{
  "id": 1545910660740,                              
  "type": "subscribe",
  "topic": "/indicator/index:USDT-BTC",
  "response": true
}

Topic: /indicator/index:{symbol0},{symbol1}...

Subscribe to this topic to get the index price for the margin trading.

{
    "id":"5c24c5da03aa673885cd67a0",
    "type":"message",
    "topic":"/indicator/index:USDT-BTC",
    "subject":"tick",
    "data":{
        "symbol": "USDT-BTC",
        "granularity": 5000,
        "timestamp": 1551770400000,
        "value": 0.0001092
    }
}

The following ticker symbols are supported: List of currently supported symbol

Mark Price

{
  "id": 1545910660741,                              
  "type": "subscribe",
  "topic": "/indicator/markPrice:USDT-BTC",
  "response": true
}

{
    "id":"5c24c5da03aa673885cd67aa",
    "type":"message",
    "topic":"/indicator/markPrice:USDT-BTC",
    "subject":"tick",
    "data":{
        "symbol": "USDT-BTC",
        "granularity": 5000,
        "timestamp": 1551770400000,
        "value": 0.0001093
    }
}

Topic: /indicator/markPrice:{symbol0},{symbol1}...

Subscribe to this topic to get the mark price for margin trading.

The following ticker symbols are supported: List of currently supported symbol

Order Book Change

{
  "id": 1545910660742,
  "type": "subscribe",
  "topic": "/margin/fundingBook:BTC",
  "response": true
}

{
    "id": "5c24c5da03aa673885cd67ab",
      "type": "message",
      "topic": "/margin/fundingBook:BTC",
      "subject": "funding.update",
      "data": {

            "sequence": 1000000,       //Sequence number
            "currency": "BTC",         //Currency
            "dailyIntRate": "0.00007",   //Daily interest rate. e.g. 0.002 is 0.2%
            "annualIntRate": "0.12",     //Annual interest rate. e.g. 0.12 is 12%
            "term": 7,                 //Term (Unit: Day)    
            "size": "1017.5",            //Current total size. When this value is 0, remove this record from the order book.
            "side": "lend",            //Lend or borrow. Currently, only "Lend" is available
            "ts": 1553846081210004941  //Timestamp (nanosecond)
    }
}

Topic: /margin/fundingBook:{currency0},{currency1}...

Subscribe to this topic to get the order book changes on margin trade.

Private Channels

Subscribe to private channels require privateChannel=“true”.

Private Order Change

Topic: /spotMarket/tradeOrders

Push frequency: real-time

This topic will push all change events of your orders.

Order Status

“match”: when taker order executes with orders in the order book, the taker order status is “match”;

“open”: the order is in the order book;

“done”: the order is fully executed successfully;

Message Type

open

{
    "type":"message",
    "topic":"/spotMarket/tradeOrders",
    "subject":"orderChange",
    "channelType":"private",
    "data":{
        "symbol":"KCS-USDT",
        "orderType":"limit",
        "side":"buy",
        "orderId":"5efab07953bdea00089965d2",
        "type":"open",
        "orderTime":1670329987026,
        "size":"0.1",
        "filledSize":"0",
        "price":"0.937",
        "clientOid":"1593487481000906",
        "remainSize":"0.1",
        "status":"open",
        "ts":1670329987311000000
    }
}

when the order enters into the order book;

match

{
    "type":"message",
    "topic":"/spotMarket/tradeOrders",
    "subject":"orderChange",
    "channelType":"private",
    "data":{
        "symbol":"KCS-USDT",
        "orderType":"limit",
        "side":"sell",
        "orderId":"5efab07953bdea00089965fa",
        "liquidity":"taker",
        "type":"match",
        "orderTime":1670329987026,
        "size":"0.1",
        "filledSize":"0.1",
        "price":"0.938",
        "matchPrice":"0.96738",
        "matchSize":"0.1",
        "tradeId":"5efab07a4ee4c7000a82d6d9",
        "clientOid":"1593487481000313",
        "remainSize":"0",
        "status":"match",
        "ts":1670329987311000000
    }
}

when the order has been executed;

filled

{
    "type":"message",
    "topic":"/spotMarket/tradeOrders",
    "subject":"orderChange",
    "channelType":"private",
    "data":{
        "symbol":"KCS-USDT",
        "orderType":"limit",
        "side":"sell",
        "orderId":"5efab07953bdea00089965fa",
        "type":"filled",
        "orderTime":1670329987026,
        "size":"0.1",
        "filledSize":"0.1",
        "price":"0.938",
        "clientOid":"1593487481000313",
        "remainSize":"0",
        "status":"done",
        "ts":1670329987311000000
    }
}

when the order has been executed and its status was changed into DONE;

canceled

{
    "type":"message",
    "topic":"/spotMarket/tradeOrders",
    "subject":"orderChange",
    "channelType":"private",
    "data":{
        "symbol":"KCS-USDT",
        "orderType":"limit",
        "side":"buy",
        "orderId":"5efab07953bdea00089965d2",
        "type":"canceled",
        "orderTime":1670329987026,
        "size":"0.1",
        "filledSize":"0",
        "price":"0.937",
        "clientOid":"1593487481000906",
        "remainSize":"0",
        "status":"done",
        "ts":1670329987311000000
    }
}

when the order has been cancelled and its status was changed into DONE;

update

{
    "type":"message",
    "topic":"/spotMarket/tradeOrders",
    "subject":"orderChange",
    "channelType":"private",
    "data":{
        "symbol":"KCS-USDT",
        "orderType":"limit",
        "side":"buy",
        "orderId":"5efab13f53bdea00089971df",
        "type":"update",
        "oldSize":"0.1",
        "orderTime":1670329987026,
        "size":"0.06",
        "filledSize":"0",
        "price":"0.937",
        "clientOid":"1593487679000249",
        "remainSize":"0.06",
        "status":"open",
        "ts":1670329987311000000
    }
}

when the order has been updated;

Private Order Change V2

Topic: /spotMarket/tradeOrdersV2

Push frequency: real-time

This topic will push all change events of your orders. Compared with v1, v2 adds an Order Status: "new", there is no difference in push speed

Order Status

“match”: when taker order executes with orders in the order book, the taker order status is “match”;

“open”: the order is in the order book;

“done”: the order is fully executed successfully;

"new": the order enters the matching system;

received

The message sent when the order enters the matching system.

    {
        "type":"message",
        "topic":"/spotMarket/tradeOrdersV2",
        "subject":"orderChange",
        "channelType":"private",
        "data":{
            "symbol":"KCS-USDT",
            "orderType":"limit",
            "side":"buy",
            "orderId":"5efab07953bdea00089965d2",
            "type":"received",
            "orderTime":1593487481683297666,
            "price":"0.937",
            "clientOid":"1593487481000906",
            "status":"new",
            "originSize": "0.1", // original quantity
            "originFunds": "0.1", // The original funds of the market order
            "ts":1593487481683297666
    }
}

When the order has just entered the matching system and has not yet done matching logic with the counterparty, a private message with the message type "received" and the order status "new" will be pushed.

open

when the order enters into the order book;

    {
        "type":"message",
        "topic":"/spotMarket/tradeOrdersV2",
        "subject":"orderChange",
        "channelType":"private",
        "data":{
            "symbol":"KCS-USDT",
            "orderType":"limit",
            "side":"buy",
            "orderId":"5efab07953bdea00089965d2",
            "type":"open",
            "orderTime":1593487481683297666,
            "size":"0.1",
            "filledSize":"0",
            "price":"0.937",
            "clientOid":"1593487481000906",
            "remainSize":"0.1",
            "status":"open",
            "canceledSize": "0.1", // Cumulative number of cancellations
            "canceledFunds": "0.1", // Market order accumulative cancellation funds
            "originSize": "0.1", // original quantity
            "originFunds": "0.1", // Market order original funds
            "ts":1593487481683297666
       }
}

match

when the order has been executed and its status was changed into DONE;

    {
        "type":"message",
        "topic":"/spotMarket/tradeOrdersV2",
        "subject":"orderChange",
        "channelType":"private",
        "data": {
          "symbol": "KCS-USDT",
          "orderType": "limit",
          "side": "sell",
          "orderId": "5efab07953bdea00089965fa",
          "liquidity": "taker",
          "type": "match",
          "orderTime": 1593487482038606180,
          "size": "0.1",
          "filledSize": "0.1",
          "price": "0.938",
          "matchPrice": "0.96738",
          "matchSize": "0.1",
          "tradeId": "5efab07a4ee4c7000a82d6d9",
          "clientOid": "1593487481000313",
          "remainSize": "0",
          "status": "match",
          "canceledSize": "0.1", // Cumulative number of cancellations
          "canceledFunds": "0.1", // Market order accumulative cancellation funds
          "originSize": "0.1", // original quantity
          "originFunds": "0.1", // Market order original funds
          "ts": 1593487482038606180
        }
    }

filled

The message sent when the status of the order changes to DONE after the transaction

    {
        "type":"message",
        "topic":"/spotMarket/tradeOrdersV2",
        "subject":"orderChange",
        "channelType":"private",
        "data":{
            "symbol":"KCS-USDT",
            "orderType":"limit",
            "side":"sell",
            "orderId":"5efab07953bdea00089965fa",
            "type":"filled",
            "orderTime":1593487482038606180,
            "size":"0.1",
            "filledSize":"0.1",
            "price":"0.938",
            "clientOid":"1593487481000313",
            "remainSize":"0",
            "status":"done",
            "canceledSize": "0.1", // Cumulative number of cancellations
            "canceledFunds": "0.1", // Market order accumulative cancellation funds
            "originSize": "0.1", // original quantity
            "originFunds": "0.1", // Market order original funds
            "ts":1593487482038606180
      }
    }

canceled

The message sent when the status of the order changes to DONE due to being canceled

    {
    "type":"message",
    "topic":"/spotMarket/tradeOrdersV2",
    "subject":"orderChange",
    "channelType":"private",
    "data":{
        "symbol":"KCS-USDT",
        "orderType":"limit",
        "side":"buy",
        "orderId":"5efab07953bdea00089965d2",
        "type":"canceled",
        "orderTime":1593487481683297666,
        "size":"0.1",
        "filledSize":"0",
        "price":"0.937",
        "clientOid":"1593487481000906",
        "remainSize":"0",
        "status":"done",
        "canceledSize": "0.1", // Cumulative number of cancellations
        "canceledFunds": "0.1", // Market order accumulative cancellation funds
        "originSize": "0.1", // original quantity
        "originFunds": "0.1", // Market order original funds
        "ts":1593487481893140844
        }
    }

update

The message sent by the order due to modification

{
    "type":"message",
    "topic":"/spotMarket/tradeOrdersV2",
    "subject":"orderChange",
    "channelType":"private",
    "data":{
        "symbol":"KCS-USDT",
        "orderType":"limit",
        "side":"buy",
        "orderId":"5efab13f53bdea00089971df",
        "type":"update",
        "oldSize":"0.1",
        "orderTime":1593487679693183319,
        "size":"0.06",
        "filledSize":"0",
        "price":"0.937",
        "clientOid":"1593487679000249",
        "remainSize":"0.06",
        "status":"open",
        "canceledSize": "0.1", // Cumulative number of cancellations
        "canceledFunds": "0.1", // Market order accumulative cancellation funds
        "originSize": "0.1", // original quantity
        "originFunds": "0.1", // Market order original funds
        "ts":1593487682916117521
    }
}

Account Balance Notice

{
    "type": "message",
      "topic": "/account/balance",
      "subject": "account.balance",
    "channelType":"private",
      "data": {
            "total": "88", // total balance
            "available": "88", // available balance
            "availableChange": "88", // the change of available balance
            "currency": "KCS", // currency
            "hold": "0", // hold amount
            "holdChange": "0", // the change of hold balance
            "relationEvent": "trade.setted", //relation event
            "relationEventId": "5c21e80303aa677bd09d7dff", // relation event id
            "relationContext": {
            "symbol":"BTC-USDT",
            "tradeId":"5e6a5dca9e16882a7d83b7a4", // the trade Id when order is executed
            "orderId":"5ea10479415e2f0009949d54"
        },  // the context of trade event
        "time": "1545743136994" // timestamp
  }
}

Topic: /account/balance

Push frequency: real-time

You will receive this message when an account balance changes. The message contains the details of the change.

Relation Event

Type	Description
main.deposit	Deposit
main.withdraw_hold	Hold withdrawal amount
main.withdraw_done	Withdrawal done
main.transfer	Transfer (Main account)
main.other	Other operations (Main account)
trade.hold	Hold (Trade account)
trade.setted	Settlement (Trade account)
trade.transfer	Transfer (Trade account)
trade.other	Other operations (Trade account)
margin.hold	Hold (Margin account)
margin.setted	Settlement (Margin account)
margin.transfer	Transfer (Margin account)
margin.other	Other operations (Margin account)
isolated_%s.hold	Hold (Isolated margin account)
isolated_%s.setted	Settlement (Isolated margin account)
isolated_%s.transfer	Transfer (Isolated margin account)
isolated_%s.other	Other operations (Isolated margin account)
other	Others

Debt Ratio Change

{
    "type":"message",
    "topic":"/margin/position",
    "subject":"debt.ratio",
    "channelType":"private",
    "data": {
        "debtRatio": 0.7505,                                         //Debt ratio
        "totalDebt": "21.7505",                                      //Total debt in BTC (interest included)
        "debtList": {"BTC": "1.21","USDT": "2121.2121","EOS": "0"},  //Debt list (interest included)
        "timestamp": 15538460812100                                  //Timestamp (millisecond)
  }
}

Topic: /margin/position

The system will push the current debt message periodically when there is a liability.

Position Status Change Event

{
    "type":"message",
    "topic":"/margin/position",
    "subject":"position.status",
    "channelType":"private",
    "data": {
        "type": "FROZEN_FL",         //Event type
        "timestamp": 15538460812100  //Timestamp (millisecond)
    }
}

Topic: /margin/position

The system will push the change event when the position status changes.

Event type:

FROZEN_FL: When the debt ratio exceeds the liquidation threshold and the position is frozen, the system will push this event.

UNFROZEN_FL: When the liquidation is finished and the position returns to “EFFECTIVE” status, the system will push this event.

FROZEN_RENEW: When the auto-borrow renewing is complete and the position returns to “EFFECTIVE” status, the system will push this event.

UNFROZEN_RENEW: When the account reaches a negative balance, the system will push this event.

LIABILITY: When the account reaches a negative balance, the system will push this event.

UNLIABILITY: When all the liabilities is repaid and the position returns to “EFFECTIVE” status, the system will push this event.

Margin Trade Order Enters Event

{
    "type": "message",
    "topic": "/margin/loan:BTC",
    "subject": "order.open",
    "channelType":"private",
    "data": {
        "currency": "BTC",                            //Currency
        "orderId": "ac928c66ca53498f9c13a127a60e8",   //Trade ID
        "dailyIntRate": 0.0001,                       //Daily interest rate.
        "term": 7,                                    //Term (Unit: Day)  
        "size": 1,                                    //Size
        "side": "lend",                               //Lend or borrow. Currently, only "Lend" is available
        "ts": 1553846081210004941                     //Timestamp (nanosecond)
    }
}

Topic: /margin/loan:{currency}

The system will push this message to the lenders when the order enters the order book.

Margin Order Update Event

{
    "type": "message",
    "topic": "/margin/loan:BTC",
    "subject": "order.update",
    "channelType":"private",
    "data": {
        "currency": "BTC",                            //Currency
        "orderId": "ac928c66ca53498f9c13a127a60e8",   //Order ID
        "dailyIntRate": 0.0001,                       //Daily Interest Rate
        "term": 7,                                    //Term (Unit: Day)
        "size": 1,                                    //Size
        "lentSize": 0.5,                              //Size executed
        "side": "lend",                               //Lend or borrow. Currently, only "Lend" is available
        "ts": 1553846081210004941                     //Timestamp (nanosecond)
    }
}

Topic: /margin/loan:{currency}

The system will push this message to the lenders when the order is executed.

Margin Order Done Event

{
    "type": "message",
    "topic": "/margin/loan:BTC",
    "subject": "order.done",
    "channelType":"private",
    "data": {
        "currency": "BTC",                            //Currency
        "orderId": "ac928c66ca53498f9c13a127a60e8",   //Order ID
        "reason": "filled",                           //Done reason (filled or canceled)
        "side": "lend",                               //Lend or borrow. Currently, only "Lend" is available
        "ts": 1553846081210004941                     //Timestamp (nanosecond)
  }
}

Topic: /margin/loan:{currency}

The system will push this message to the lenders when the order is completed.

{
    "type":"message",
    "topic":"/spotMarket/advancedOrders",
    "subject":"stopOrder",
    "channelType":"private",
    "data":{
        "createdAt":1589789942337,
        "orderId":"5ec244f6a8a75e0009958237",
        "orderPrice":"0.00062",
        "orderType":"stop",
        "side":"sell",
        "size":"1",
        "stop":"entry",
        "stopPrice":"0.00062",
        "symbol":"KCS-BTC",
        "tradeType":"TRADE",
        "triggerSuccess":true,
        "ts":1589790121382281286,
        "type":"triggered"
    }
}

Stop Order Event

Topic: /spotMarket/advancedOrders

Push frequency: real-time

Subject: stopOrder

When a stop order is received by the system, you will receive a message with "open" type. It means that this order entered the system and waited to be triggered.

When a stop order is triggered by current trading price, you will receive a message with "triggered" type.

When you cancel a stop order, you will receive a message with "cancel" type.