API for PC Browser with Wechat Pay/Alipay/UnionPay

Call API to generate and display payment QRCode from the merchant's website. The customers scan QRCode shown on the merchant's webpage to activate the customers' payment app to make payment.

✅ OTT Pay API URL:

https://frontapi.ottpay.com:443/processV2

✅ Process Flow:

PreviousPayment Process Flow with Mobile App (Common)NextPayment Request with WeChat Pay

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