A: Yes. Reach is a standard remote MCP server, so it works with any model, Gemini Pro included, as long as your client supports MCP.

Gemini: with Gemini CLI or the Google GenAI SDK, add Reach as an HTTP MCP server and pass your API key in the X-API-Key header.

OpenRouter: OpenRouter provides the model, not the MCP connection. Use an MCP-capable client (Cursor, Cline, LibreChat, Open WebUI…) set to your OpenRouter model, and add Reach as an MCP server there. If your client can't send headers, you can append ?api_key=YOUR_KEY to the URL.