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Overview

Corebill is a billing platform designed for developers, freelancers, and small businesses. Our API gives you full programmatic access to manage your invoicing workflow.

Quickstart

Make your first API call in under 2 minutes.

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What you can do

Manage Customers

Create, update, and organize your customer database.

Create Invoices

Generate and send invoices with line items, taxes, and discounts.

Send Quotes

Create quotes with versioning and convert them to invoices.

Track Projects

Manage projects with tasks and time tracking.

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API Reference

The full API reference is auto-generated from our OpenAPI specification. Each endpoint includes an interactive playground where you can test requests directly.

API Reference

Explore all 32 endpoints with interactive examples.

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Authentication

All API requests require a Bearer token. Generate API keys from the Developers section in your Corebill dashboard. 
curl https://api.corebill.io/v1/companies \
  -H "Authorization: Bearer sk_live_your_api_key"

Authentication Guide

Learn about API keys, permissions, and security.