---
title: OpenRouter
social:
  title: OpenRouter
  tagline: Configure OpenRouter models, routing, and credentials in fast-agent.
  description: Configure OpenRouter models, routing, and credentials in fast-agent.
  alt: fast-agent social card — OpenRouter
---

# OpenRouter

OpenRouter is covered in the [Additional Providers](additional.md) reference.

See that page for the config key, API key environment variable, default endpoint, model string examples, and provider-specific notes.
