Getting Started
Twitter for Websites
Easily embed Twitter functionality, encourage your users to share content on Twitter, and increase your audience reach with Twitter for Websites.
Guidelines and Terms
API terms of service and guidelines for use.
Other Resources
The REST API
The REST API provides simple interfaces for most Twitter functionality.
Streaming API, User Streams, Site Streams
The Streaming API is a family of powerful real-time APIs for Tweets and other social events.
Authentication
Learn how a user authorizes your application and how you securely communicate on their behalf.