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OpenRouter

One key, many models: OpenRouter fronts models from many providers behind a single API. Mastery HQ uses it for extra model breadth beyond your installed CLIs.

  1. Sign up at openrouter.ai and create an API key.
  2. Put OPENROUTER_API_KEY=… in your .env — the keys guide shows exactly where.
  3. That’s it: OpenRouter models are now selectable in agent windows (as an HTTP backend), the Model Council, and the Benchmark suite.
  • What OpenRouter windows can and can’t do (no file access, no sessions, no attachments) is covered in OpenRouter models.
  • Billing is between you and OpenRouter, per model, on their pricing.
  • The key stays in your local .env.