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mcp/harbor
Gemini CLI

billy mcp for Gemini CLI

io.github.thourum/billy-mcp

Billy (billy.dk) accounting: invoices, journal entries, trial balance, with write protection.

client:Gemini CLI transport:stdio runtime:npm

Install billy mcp 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": {
    "billy-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "billy-mcp"
      ],
      "env": {
        "BILLY_ACCESS_TOKEN": "<BILLY_ACCESS_TOKEN>",
        "BILLY_WRITE_MODE": "<BILLY_WRITE_MODE>",
        "BILLY_ORGANIZATION_ID": "<BILLY_ORGANIZATION_ID>",
        "BILLY_LOCALE": "<BILLY_LOCALE>"
      }
    }
  }
}

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

billy mcp in other clients

billy mcp MCP server