DlainexOpen Third-Party Payment Platform for Merchants and ISVs

Unified pay, close, transfer, inqury, query, and sync APIs with RSA signatures and transparent agent merchant routing.

Agent Merchant Routing

Downstream merchants use transparent upstream routing without seeing channel provider details.

One integration covers pay, close, transfer, transfer inqury, order query, and order sync.

Requests are verified with merchant public keys and responses are signed by the platform.

The agent merchant OpenAPI file can be imported into Bruno directly.

English, Simplified Chinese, and Spanish docs support cross-region integration teams.

Error codes, callback rules, and sync APIs help teams troubleshoot and reconcile orders.

Use the agent merchant document for transparent routing. The public payment method for Mexico virtual account collection is mex_virtual_account.

Merchant model	Channel handling	OpenAPI
Agent merchant	Upstream channels are transparent and selected by backend routing.	Agent merchant YAML

Unified trade lifecycle: pay, close, transfer, transfer inqury, query, and sync.
Merchant-grade security: RSA request verification, response signing, nonce, request time, and trace ID.
Channel-aware routing: transparent routing for agent merchants.
Debug-ready assets: OpenAPI files, request examples, response examples, and error-code references.

Confirm merchant credentials and open the Agent Merchant API document.
Configure merchant number, app ID, platform public key, and merchant private key.
Implement request signing and response signature verification.
Configure callback URLs and verify callback idempotency.
Test pay, close, transfer, inqury, query, and sync flows in a test environment.