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Both files can be imported directly into Bruno or other OpenAPI-compatible tools.

Which File Should I Use?

Agent merchants

Use unipay-agent.yaml when upstream channel selection is transparent to the merchant. Requests do not include channel; the backend routes by the enabled ISV channel configuration.

Special merchants

Use unipay-special.yaml when the merchant manages upstream channels explicitly. Payment, transfer, and inqury requests include channel.

Endpoint Groups

Trade

POST /unipay/pay
POST /unipay/refund
POST /unipay/close
POST /unipay/inqury
POST /unipay/transfer

Query

POST /unipay/query/payOrder
POST /unipay/query/refundOrder
POST /unipay/query/transferOrder

Sync

POST /unipay/sync/order/pay
POST /unipay/sync/order/refund

Covered Content

Request and response signature rules
Common request fields and response envelope
Request examples, success examples, and failure examples
Common error codes and payment-domain error codes

See Security & Signature and Error Codes for integration details.

API Center ​

OpenAPI Download ​

Which File Should I Use? ​

Agent merchants ​

Special merchants ​

Endpoint Groups ​

Trade ​

Query ​

Sync ​

Covered Content ​