# Router API

::::card-grid
:::card{title="Perplexity Router API" href="/guides/router-api-quickstart"}
Unified access to open-weight models through OpenAI Chat Completions, OpenAI Responses, and Anthropic Messages APIs, with your Perplexity API key.
:::

:::card{title="Router Models & Pricing" href="/guides/router-api-models"}
The model catalog for the Perplexity Router API, with per-token pricing for Perplexity-hosted and third-party models.
:::

:::card{title="Routing & Reliability" href="/guides/router-api-routing-and-reliability"}
How the Perplexity Router API routes requests across model deployments, and what happens automatically when a provider degrades or fails.
:::
::::

## Related pages

- [Admin & Management](./admin-management-index.md)
- [Agent API](./agent-api-2-index.md)
- [Agent API](./agent-api-index.md)
- [Analytics API](./analytics-api-index.md)
- [Authentication](./authentication-index.md)
- [Changelog](../changelog.md)
- [Cookbook](./cookbook-2-index.md)
- [Embeddings API](./embeddings-api-2-index.md)
- [Embeddings API](./embeddings-api-index.md)
- [Getting Started](./getting-started-index.md)

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