> For the complete documentation index, see [llms.txt](https://docs.cherryai.com.cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cherryai.com.cn/docs/en-us/advanced-basic/developer-tools.md).

# Development and Diagnostics

This set of features is for users who need to let other local programs call the model, or troubleshoot request issues. You do not need to enable Developer Mode for everyday chatting or content work.

## Two entry points

| Entry                                       | Purpose                                                                                  | Confirm before use                 |
| ------------------------------------------- | ---------------------------------------------------------------------------------------- | ---------------------------------- |
| \[Settings] → \[API Gateway]                | Provides a compatible API for local programs, and is also a runtime dependency for Agent | Status, port, and key security     |
| \[Settings] → \[System] → \[Developer Mode] | View the call chain to locate model and tool errors                                      | Logs may contain sensitive content |

<figure><img src="/files/c47a2f59416c283c9809d550b0c2bb19a895da7f" alt="API 网关的运行状态、地址、端口和密钥区域"><figcaption><p>The API Gateway page centrally displays runtime status, address, port, and credentials.</p></figcaption></figure>

{% hint style="warning" %}
The API Gateway key and the request content in the call chain may both involve sensitive information. In screenshots, issues, and group chats, only share the necessary redacted portions.
{% endhint %}

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>API gateway</strong></td><td>Understand Agent dependencies and local API calls</td><td><a href="/pages/7cd60d07b2db3d955720f3a8d6733c485f4b5625">/pages/7cd60d07b2db3d955720f3a8d6733c485f4b5625</a></td></tr><tr><td><strong>Call chain and Developer Mode</strong></td><td>Reproduce and locate a specific request</td><td><a href="/pages/55d9337ba4a8770aba2727c4bff8dc43ea98839f">/pages/55d9337ba4a8770aba2727c4bff8dc43ea98839f</a></td></tr></tbody></table>


---

# Agent Instructions
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## Querying This Documentation
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```

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