Link4

"Link4 allow small and medium businesses to exchange invoices through their cloud accounting systems without having to change the way they do things. If you are a seller, your invoice will be delivered into your customer's accounting software instantly. By integrating with Stripe, you get paid faster. If you are a buyer who receives a number of invoices each month and you have to process them manually, then Link4 can automate this process for you. No data entry required for 100% accuracy."