API Reference

APIs Navigation

Payment APIs

• Pay-in (v1)

• Pay-in (v2)

• More...

Refund APIs

• Create Refund

• Query Refund Status

Account APIs

• Query Balance

• More...

KYC APIs

• Submit KYC

• More...

Postman Collection

This collection may help merchants to speed the integration, download it and have a try if necessary.

The collection zip will be uploaded soon.

Idempotency

All APIs support idempotency, allowing to retry a request multiple times while only performing the action once. This helps avoid unwanted duplication in case of failures and retries.

If the process has not been completed in the previous request because of a transient error or timeout, the subsequent retry pushes the action to its completion.

If the process has been completed already, the retry process will be performed only once and get the same result.

The following shows the most commonly used APIs and their idempotency rules.

API Name	Rules
Pay-in (v1)	merchantId + merchantTradeNo
Pay-in (v2)	merchantId + merchantTradeNo