> For the complete documentation index, see [llms.txt](https://useepay.gitbook.io/developer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://useepay.gitbook.io/developer/reference/api-reference-xin-yong-ka/checkout.md).

# 收银台

## 步骤

### 接口

支付/预授权接口可以根据自己的业务需求对接

* [支付接口](/developer/reference/api-reference-xin-yong-ka/checkout/pay.md)
* [ ](/developer/reference/api-reference-xin-yong-ka/checkout/pay.md)[预授权接口](/developer/reference/api-reference-xin-yong-ka/checkout/pay.md)
* [预授权完成接口](/developer/reference/api-reference-xin-yong-ka/order/capture.md) （如果对接了预授权接口，那么需要对接）

### 推荐对接的接口

* [退款](/developer/reference/api-reference-xin-yong-ka/order/refund.md)
* [查询](/developer/reference/api-reference-xin-yong-ka/order/order-detail.md)