OpenAPI Spec
You can download the published OpenAPI JSON directly from this docs site:
The specification covers API-key integration endpoints under /api/v1/public and all supported webhook events in x-webhooks. OAuth sign-in has a separate endpoint reference. Hosted checkout, public pricing and loyalty signup routes are outside this integration contract.
Use this stable download link when fetching the latest specification. The hashed asset URL embedded in a site build identifies that build's copy and can change after an update.
Need Swagger 2.0 or a Postman collection for integration tooling?