Introduction

Integrate Billspree into your application using our REST API.

Welcome

The Billspree API allows you to automate your billing workflows, manage customers, and track usage programmatically. Our API is built on REST principles and returns JSON-encoded responses.

Billspree API Specification

View the OpenAPI specification file

Authentication

All API endpoints are authenticated using Bearer tokens. You can find your API keys in the Billspree Dashboard settings.

Authorization: Bearer <YOUR_SECRET_KEY>

For client-side operations, such as initializing the hosted billing portal, use your Public Key. For all other operations, use your Secret Key.