> 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/direct-card-api-ji-cheng/bai-ming-dan-ip-di-zhi.md).

# 白名单 IP 地址

{% hint style="success" %}
仅当交易回调能通过您的防火墙，Codapay 才能成功发送交易完成通知。
{% endhint %}

为确保贵方服务器能够正常接收 Codapay 的支付回调通知，避免因 IP 未加白而导致交易通知被拒，请注意以下事项：

1. 如果贵方服务器/防火墙设置需要对 Codapay 的出口 IP 地址进行白名单配置，请发送邮件至我们的支持团队：<codapay_integration@coda.co> 提出申请。
2. 收到邮件请求后，我们将为您提供最新的 IP 段范围或相应的域名/接口验证方案，以便贵方完成白名单更新。


---

# 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/direct-card-api-ji-cheng/bai-ming-dan-ip-di-zhi.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.