> 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/api-for-wechat-mini-program.md).

# API for WeChat Mini-Program with WeChat Pay

- [Payment Request API](https://docs.ottpay.com/payment-api/api-for-wechat-mini-program/payment-request-api-1.md)
- [Query Transaction API](https://docs.ottpay.com/payment-api/api-for-wechat-mini-program/payment-request-api.md): Retrieve the payment transaction process status by order id