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

# BrainLink - OAuth AI provider.

> Learn how to use OAuth in your AI application to allow users to connect AI providers like OpenAI, Anthropic, Gemini, and more with one click.

# BrainLink OAuth

At BrainLink we use a secure OAuth workflow to provide your application with users' access and refresh tokens which you can use to run inference on their behalf via our model proxy.

BrainLink supports 300+ models through an OpenAI-compatible API, which means your code needs minimal changes.

OpenAI, Anthropic, Gemini, and other AI providers do not support a "Sign In with OpenAI" like functionality. Thus, BrainLink creates a layer on top of
them to help applications get more users by reducing the onboarding friction.

To get started integrating BrainLink on your AI application go to the [Quickstart guide](/developers/quickstart).

## Shortcuts

<CardGroup>
  <Card title="BrainLink dashboard" icon="file" href="https://www.brainlink.dev/dashboard">
    Go to the Brainlink Dashboard
  </Card>

  <Card title="Live demo" icon="square-code" href="https://demo.brainlink.dev/">
    Check out the BrainLink user experience in our live demo
  </Card>
</CardGroup>