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mcp/harbor
Gemini CLI

fieldtwin for Gemini CLI

io.github.nickgeorgeseo/fieldtwin

Local, stateful twins of the Jobber, Housecall Pro, and QuickBooks Online APIs, for agents and tests

client:Gemini CLI transport:stdio runtime:npm

Install fieldtwin in Gemini CLI

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "fieldtwin": {
      "command": "npx",
      "args": [
        "-y",
        "fieldtwin"
      ],
      "env": {
        "FIELDTWIN_PORT": "<FIELDTWIN_PORT>",
        "FIELDTWIN_HOST": "<FIELDTWIN_HOST>",
        "FIELDTWIN_AUTH": "<FIELDTWIN_AUTH>",
        "FIELDTWIN_SEED": "<FIELDTWIN_SEED>"
      }
    }
  }
}

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

fieldtwin in other clients

fieldtwin MCP server