External Integration API
Full reference for the miaPOS External Integration API. Endpoints, schemas, examples, error codes.
Overview
The External Integration API is for ISVs and platforms that provision merchants on behalf of their users — multi-tenant onboarding, programmatic terminal creation, settlement export.
Endpoints
POST/integration/api/v1/merchant
POST/integration/api/v1/terminal
GET/integration/api/v1/merchant/{merchantId}/settlement
POST/integration/api/v1/webhook
Schemas
Request and response schemas for each endpoint follow the same envelope conventions described in Signatures and Errors. Field-level definitions are documented per endpoint above.
Errors
All endpoints return errors in the standard envelope. See Errors for the full catalog.