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DocumentationDescription
Sandbox API sign upYour first step is to sign-up and set up your credentials for working with the BILL v3 API.
Sandbox vs ProductionThe BILL developer program provides two environments for you to build and test your application with the BILL API.
Sandbox bank account setupSet up a test bank account in the sandbox environment to test and build with the BILL API.
RecipesStep-by-step walkthroughs for standard BILL API use cases, such as paying a vendor and sending a customer invoice.
BILL API ReferenceThe API Reference section enables you to view sample code in your choice of language and also test API calls in the documentation.