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

# Introduction

> Welcome to InfinityBlue API documentation

# InfinityBlue API

One key, every frontier model. InfinityBlue is an OpenAI-compatible API gateway that routes chat, image, and video requests to the best upstream providers — no per-provider accounts required.

## Get started

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart/auth">
    Get your first request working in 5 minutes
  </Card>

  <Card title="Model Selection" icon="microchip" href="/guides/model-selection">
    Compare every supported model and pick the right one
  </Card>

  <Card title="Guides" icon="book" href="/guides/streaming">
    Streaming, multimodal input, and advanced patterns
  </Card>

  <Card title="GitHub" icon="github" href="https://github.com/yzlltyyh/infinityblue-api-docs">
    Source of truth for this documentation
  </Card>
</CardGroup>

## Quick example

```bash theme={null}
curl https://api.getinfinityblue.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.4",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
```

<Note>
  If you find anything missing or unclear in these docs, open an issue or PR on
  [GitHub](https://github.com/yzlltyyh/infinityblue-api-docs).
</Note>