> For the complete documentation index, see [llms.txt](https://docs.ottpay.com/payment-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ottpay.com/payment-api/wechat-official-account.md).

# API for WeChat Browser with WeChat Pay

- [Payment Request API](https://docs.ottpay.com/payment-api/wechat-official-account/untitled-1.md): For easy implementation to call payment request API,  this API protocol is using request parameter to send transaction data and Return Redirect URL.
- [Query Transaction with WeChat Pay](https://docs.ottpay.com/payment-api/wechat-official-account/query-transaction-with-alipay.md)