> ## Documentation Index
> Fetch the complete documentation index at: https://docs.anyfast.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Use in Sider

> Integrate AnyFast AI models with Sider — the AI assistant sidebar for your browser.

As a 2023 "Chrome Editor's Pick" extension, Sider has earned over 50,000 five-star reviews and serves more than 6 million active users. Sider helps with:

* Sider (ChatGPT Sidebar) is your AI assistant that works on any website you browse.

<Note>
  - Developers can visit the [Sider official website](https://sider.ai/en/) to use the Sider app.
  - Sider supports an OpenAI-compatible API provider mode, making it easy to bring your own models.
  - As a one-stop cloud platform integrating top AI models, AnyFast is committed to providing developers with faster, cheaper, and more comprehensive model APIs.
</Note>

## 1. Get an API Key

* Open the [AnyFast console](https://www.anyfast.ai/) and sign up (or log in if you already have an account).
* After signing up, go to **API Keys**, create a new API Key, and copy it for later use.

## 2. Use AnyFast models in Sider

* Open Sider settings.
* Select **OpenAI API Key** mode.
* Enter the API Key you obtained from AnyFast.
* Enter the AnyFast API endpoint: `https://www.anyfast.ai/v1`
* Enter the AnyFast model name (e.g., `gpt-4o`, `claude-opus-4-7`).
* Send a test message to verify everything works.

<script src="/feedback.js" />