Quickstart
Get your API key and webhook endpoint set up, then pick your integration path.
Foundational Concepts
Authentication
How to authenticate requests using API keys.
Idempotency
How to safely retry requests without creating duplicates.
Errors
Error response structure and common error codes.
Monetary Amounts
How amounts and currencies are represented in the API.
Metadata
Attach custom key-value data to any resource.
APIs
Collect
Payment Sessions, Payment Links, and Payments APIs.
Billing
Customers, Accounts, and Bills APIs.
Webhooks
Event notifications for all Moment resources.
Technical Reference
Integration Testing
Simulate payments and test your integration before going live.
URL Parameters
Track marketing campaign attributes using URL parameters on bill presentment.