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Use the BILL v3 API
We recommend that you build all your integrations with the BILL v3 API. The BILL v2 API is currently in LTS (Long-Term Support) mode at BILL.

With the BILL v2 API, you can leverage our cloud-based financial operations platform for an organization's Accounts Payables (AP) and Accounts Receivables (AR) automation.

BILL v2 API capabilities

Workflow	What can you do?
AP	Automate workflows for organizations to pay vendors bills at scale for the goods and services that the vendors provide. Pay vendors with a wide range of payment methods. Generate vendor credits, bill credits, and payment disbursement reports.
AR	Automate workflows for organizations to get paid by customers at scale for the goods and services that the organizations provide. Generate and send invoices on a schedule, generate customer and invoice credits, and seamlessly charge authorized customers.
Organization	Manage organization bank accounts (for sending and receiving payments), users (with user roles), and sync with the organization's choice of accounting software.
Bill approvals	Set up bill approval workflows to reduce the risk of any unapproved bill payments or money movement from your organization.
BILL network	Connect with millions of customers and vendors in the BILL network. Send and receive electronic payments.

Quickstart

Sign-up and generate a developer key for working with the BILL v2 API. With this key, you can build with all the BILL v2 API workflows. See Sandbox API sign up for more information.