# Proxy List by ID

The Private User API can also return proxies in various specificized formats by specifying exact an proxy\_id list to the Proxy List by ID API Route.

{% hint style="danger" %}
If you specify a proxy\_user\_id of a ProxyUser which doesn't have access to the proxies returned by the search parameters then the call will return 422
{% endhint %}


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# Agent Instructions: 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:

```
GET https://internal.developer.documentation.private.user.pingproxies.com/proxy-exporting/proxy-list-by-id.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.