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Use this checklist when replacing an existing Epay-style integration with Kyren Pay compatibility endpoints.

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Checklist

  • Replace the old Epay base URL with the Kyren Pay API base URL and keep the compatible paths you use.
  • Set the Kyren-issued pid and merchant key for the merchant account.
  • Verify the Epay MD5 signature implementation before sending live traffic.
  • Map payment type values to supported values: alipay, wxpay, creditcard, crypto, and paynow.
  • Confirm notify_url is reachable and can verify the Epay-compatible notification signature.
  • Confirm return_url behavior for browser redirect checkout.
  • Return the plain string success after processing each payment result notification.
  • Verify submit.php browser checkout or mapi.php direct payment creation, depending on your integration path.
  • Verify api.php?act=order queries by out_trade_no or trade_no.
  • Account for the unsupported api.php?act=refund compatibility endpoint and coordinate refund handling separately with Kyren platform assistance.
  • Reconcile migrated Epay source orders in Kyren orders and settlements.
For testing, use Kyren-issued credentials. Low-risk live checks should only be performed when approved by Kyren or support.