Fusion API Reference

API for managing monetization operations and proxying Stripe calls.

Authentication

This API uses two primary authentication methods:

• API Key - All calls must be made with your Fusion API Key in the X-API-KEY header
• JWT Token - All calls specific to a user e.g. checkout sessions and subscriptions must also contain a valid JWT token in the Authorization header in the format ‘Bearer TOKEN’. This token must contain the ‘sub’ claim which serves as the unique ID for the customer across the Fusion system.