> For the complete documentation index, see [llms.txt](https://docs.coda.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coda.co/https-coda-payments.gitbook.io-zhong-wen-coda-private-technical-documentation/codapay/hou-duan-api-ji-cheng/hou-duan-fei-ka-pian-api-ji-cheng/hou-tai-api-diao-yong-liu-cheng-gai-lan.md).

# 后台API调用流程概览

卡支付

{% hint style="warning" %}
在本节中，我们将深入解析 Codapay 支持的各类后后端API调用流程，请充分利用以下快捷链接：
{% endhint %}

<table data-card-size="large" data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td align="center"><mark style="color:purple;"><strong>运营商支付（DCB）</strong></mark></td><td><a href="/pages/2p7SjVSfv0eNMqLPQawj">/pages/2p7SjVSfv0eNMqLPQawj</a></td></tr><tr><td align="center"><mark style="color:purple;"><strong>电子钱包</strong></mark></td><td><a href="/pages/fVowMg3ocZVIA9llsTrN">/pages/fVowMg3ocZVIA9llsTrN</a></td></tr><tr><td align="center"><mark style="color:purple;"><strong>线下支付 (OTC)</strong></mark></td><td><a href="/pages/odwL8Ghoop6XtFqtYe97">/pages/odwL8Ghoop6XtFqtYe97</a></td></tr><tr><td align="center"><mark style="color:purple;"><strong>卡支付</strong></mark></td><td><a href="/pages/yMwybpJZU2RwYY0nWuRb">/pages/yMwybpJZU2RwYY0nWuRb</a></td></tr><tr><td align="center"><mark style="color:purple;"><strong>银行转账</strong></mark></td><td><a href="/pages/Bv5mEHS7CdFuUjvwPzI7">/pages/Bv5mEHS7CdFuUjvwPzI7</a></td></tr><tr><td align="center"><mark style="color:purple;"><strong>代金券（现金卡）</strong></mark></td><td><a href="/pages/y2HnMrAwDL4QK2eNmrCR">/pages/y2HnMrAwDL4QK2eNmrCR</a></td></tr></tbody></table>

{% hint style="warning" %}

{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.coda.co/https-coda-payments.gitbook.io-zhong-wen-coda-private-technical-documentation/codapay/hou-duan-api-ji-cheng/hou-duan-fei-ka-pian-api-ji-cheng/hou-tai-api-diao-yong-liu-cheng-gai-lan.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.