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.

Authentication

Generate an API key from your workspace dashboard and send it as the Authorization header on every request — no “Bearer” prefix.

Authorization: 60cfb716aa1d0d8d248f324bcfd58da9a889