> ## Documentation index
> Fetch the complete documentation index at: https://arize.com/llms.txt
> Ask it with GET https://arize.com/ask?q=<keywords or question>. Short keywords rank best.
> Use these to discover all available pages before exploring further.

# OrcaRouter

> OrcaRouter is an OpenAI-compatible AI gateway that routes requests across 200+ models. Use Phoenix tracing to observe which upstream model served each request.

<img noZoom width="400px" style={{margin: "0 auto", borderRadius: "10px"}} src="https://storage.googleapis.com/arize-phoenix-assets/assets/images/phoenix-docs-images/orcarouter-card.avif" />

<Card title="OrcaRouter" href="https://www.orcarouter.ai/" icon="globe" horizontal>
**Website**: [](https://www.orcarouter.ai/)
</Card>

<Columns cols={2}>
  <Card img="https://storage.googleapis.com/arize-phoenix-assets/assets/images/phoenix-docs-images/orcarouter-card.avif" title="OrcaRouter Tracing" href="/docs/phoenix/integrations/llm-providers/orcarouter/openai-tracing"/>
</Columns>