How to Start

1. Apply for Merchant Id and Key

1.1 Complete registration in the Tapxyz Merchant

1.2 Login to the tapxyz Merchant, go to Personal Centre - User Management - Personal Information, and obtain the PrivateKey

2. Parameter signature

2.1 Depending on the payment method, confirm the interface used

2.2 If the sign parameter of the interface is MD5(A+B+C+PrivateKey)

2.3 The MD5 value generated by MD5(A+B+C+PrivateKey) will be converted to all upper case and the result will be the value of the sign

3. Calling the payment interface

Call the interface using the restful method

4. Refund

When a customer needs a refund, they can call the Refund interface

Modified at 2025-12-12 06:50:21