AskMarcel HVAC Technical Knowledge for Gemini CLI

io.github.askmarcel/mcphvac

15 HVAC MCP tools: lookups, SKU provenance, guided PAC, Beta Harness sessions. 126 brands.

client:Gemini CLI transport:streamable-http

Install AskMarcel HVAC Technical Knowledge in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "mcphvac": {
      "httpUrl": "https://mcp.askmarcel.app"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs