LocalFree

letin: Power Query (M) MCP server

S-CurveLabs/letin

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

Source code

Install letin: Power Query (M) in Claude Code

Claude Code
claude mcp add letin-power-query-m -- uvx letin
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "letin-power-query-m": {
      "command": "uvx",
      "args": [
        "letin"
      ]
    }
  }
}

Frequently asked questions

What does the letin: Power Query (M) MCP server do?

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

Is the letin: Power Query (M) MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does letin: Power Query (M) run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add letin: Power Query (M) to Claude Code?

Run: claude mcp add letin-power-query-m -- uvx letin

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