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Payment API Debugger

Complete payment API debugging workflow. Construct, sign, send, and inspect requests. Supports Alipay, WeChat Pay, and Stripe.

API Action

Base URL

API Key

Secret Key

Request Body

cURL Command

curl -X POST "https://openapi.alipay.com/gateway.do" \
  -H "Authorization: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{\n  "out_trade_no": "ORDER-1783827490831",\n  "total_amount": "0.01",\n  "subject": "Test Order",\n  "currency": "CNY"\n}'

How to use this tool

Build and inspect authorized payment API test requests in a sandbox or a system you control.

Suggested workflow

Use a sandbox endpoint and non-production credentials.
Construct the request and signature according to the provider documentation.
Inspect the response and remove test credentials when finished.

Good to know

Do not send live payment requests, customer data, or production keys through a public debugging workflow.

For authorized testing only. Use provider sandboxes and your own endpoints.

Payment API Debugger - CodeTools Toolbox - 47 free online developer tools.