We are hard at work in making BillGrid API available for the public. If you are interested in signing up to use our API please fill out your contact information and we will get back to you.
BillGrid invoice currently supports QuickBooks XML format for import directly into BillGrid.
Application Programming Interface can be used to connect your existing application with BillGrid. For example if you are running a project management software and would like to add advanced invoicing features - you can connect to our API and easily generate professional invoices with automatic reminders, instant payments and recurring functionalities.