3Common API

The 3Common API lets you manage events, forms, prices, subscriptions, invoices, features, entitlements, newsletters, and referrals programmatically. It is a REST API that returns JSON and authenticates with a bearer token.

This reference is generated from the live OpenAPI document at api.3common.com/docs/json and rebuilt on every Netlify deploy.

Authentication

All requests require a bearer token in the Authorization header:

Authorization: Bearer YOUR_API_KEY

API keys are issued from your 3Common dashboard. See the Authentication guide for details.

SDKs

Official client libraries:

• Node.js: sdk-node
• Python: sdk-python
• Go: sdk-go

Where an SDK supports an endpoint, the code samples show the SDK snippet. Otherwise the samples show idiomatic HTTP code (fetch, requests, net/http) generated from the spec.