# OpenRouter

Access 300+ models from a single API key — GPT, Claude, Gemini, Mistral, Llama, and more. Useful if you want to experiment across providers without managing separate subscriptions.

**Get your key:** [openrouter.ai/keys](https://openrouter.ai/keys)

| Field | Description |
|---|---|
| `OPENROUTER_API_KEY` | Your API key (starts with `sk-or-...`) |

After saving, click **Fetch Models** to load the full catalog.
