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Claude Desktop

letin: Power Query (M) for Claude Desktop

io.github.s-curvelabs/letin

Inspect, refactor, lint, run and version Power Query (M) in Excel workbooks and Power BI projects.

client:Claude Desktop transport:stdio runtime:pypi

Install letin: Power Query (M) in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

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

{
  "mcpServers": {
    "letin": {
      "command": "uvx",
      "args": [
        "letin"
      ],
      "env": {
        "LETIN_HOME": "<LETIN_HOME>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

letin: Power Query (M) in other clients

letin: Power Query (M) MCP server