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Payment infrastructure for global commerce. One API for the essential steps from checkout to settlement.

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Capabilities Integration flow Security Merchant portal

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Documentation home Quickstart Merchant onboarding Teams and roles Authentication and environments Payment flow

Integration guides

Webhooks Idempotency and retries Sandbox testing

Funds

Fees and settlement Chargebacks and disputes Payouts

API reference

Create an order Retrieve an order Expire an order Create a refund Disputes Payment links Retrieve balance Balance transactions Events Webhook endpoints API request logs

API conventions

Lists, pagination, and export Metadata Errors

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Get started

Documentation home Quickstart Merchant onboarding Teams and roles Authentication and environments Payment flow

Integration guides

Webhooks Idempotency and retries Sandbox testing

Funds

Fees and settlement Chargebacks and disputes Payouts

API reference

Create an order Retrieve an order Expire an order Create a refund Disputes Payment links Retrieve balance Balance transactions Events Webhook endpoints API request logs

API conventions

Lists, pagination, and export Metadata Errors

Developer documentationSandbox testing

Sandbox testing

Use sandbox keys to test the full payment lifecycle without moving real funds.

Key points

Exercise success, failure, expiration, refund, and webhook retry scenarios before going live.
Sandbox and live keys, ledgers, and webhook endpoints are separate. Public HTTPS is still required for notify_url.

For complete field definitions, states, and edge cases, consult the Chinese reference and the live OpenAPI contract.

Full Chinese reference View OpenAPI contract

Idempotency and retries Fees and settlement