Quick start

1. Prepare your merchant configuration#

Confirm the country, assigned gateway, merchant ID, API key and channel codes with your onboarding contact. A shared document structure does not mean gateways or keys can be exchanged.

2. Use form requests#

POST /Pay_Index.html
Content-Type: application/x-www-form-urlencoded

JSON snippets describe the fields. The API request body is a URL-encoded form, not JSON.

3. Sign the exact field set#

Sort the selected fields, omit PHP-empty values, append your key and compute uppercase MD5. Collection create, queries, payouts and callbacks have different signed scopes.

4. Process the final result#

Use a verified webhook or an order query to update your business records. Never credit a customer based only on a browser return.

5. Test and prepare to launch#