> For the complete documentation index, see [llms.txt](https://docs.pixiebrix.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pixiebrix.com/developing-mods/developer-concepts/working-with-apis.md).

# Working With APIs

In some cases, you might want to fetch or post data to a tool that isn't already [Integrated with PixieBrix](/integrations.md). 

To do so, use the `HTTP Request` brick to craft a request to the API of your choice.

The brick exposes a `service` parameter where you can optionally pass a reference to private or shared integration to perform the authentication. If you use a shared integration, the call will be routed through PixieBrix's API proxy, so that the team credentials are not transmitted to the browser. Learn more about [Configuring Integrations](/integrations/configuring-integrations.md).


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# Agent Instructions
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## 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://docs.pixiebrix.com/developing-mods/developer-concepts/working-with-apis.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.