autocad-mcp

Let WorkBuddy (or any MCP client) drive AutoCAD through COM automation.

https://github.com/dxlary/autocad-mcp

Zero third-party dependencies except pywin32 — the MCP protocol layer is implemented with the standard library, so this installs offline and never breaks because PyPI is down.

What you need

AutoCAD must be running with a drawing open. Tools return a clear message when it is not, rather than crashing.

Related MCP server: AutoCAD MCP Server - Codex Edition

Install

pip install pywin32

Or install straight from GitHub, which also gives you an autocad-mcp command so the config below becomes just "command": "autocad-mcp":

pip install git+https://github.com/dxlary/autocad-mcp.git

Register with WorkBuddy

Add this to %USERPROFILE%\.workbuddy\mcp.json, replacing the two paths with your own Python interpreter and the location you saved server.py to:

{
  "mcpServers": {
    "autocad-mcp": {
      "command": "C:\\Path\\To\\python.exe",
      "args": ["C:\\Path\\To\\autocad-mcp\\server.py"]
    }
  }
}

Then open WorkBuddy's connector management page, find autocad-mcp under custom connectors, and click Trust. Manually added MCP servers do not activate on their own.

Verify without AutoCAD

python server.py --selftest   % 12 checks, no AutoCAD needed
python server.py --probe      % print the tools/list payload

Tools (17)

Notes

• Colour is ACI only (1 red, 2 yellow, 3 green, 4 cyan, 5 blue, 6 magenta, 7 white/black). The ActiveX Color property has no true-colour channel.

• Solid fill: AddHatch does not fill unless you append loops, and 3D faces never fill. For solid shapes use 2D SOLID entities, or import an R12 (AC1009) DXF via autocad_run_command with ._INSERT/-IMPORT.

• autocad_run_command is asynchronous. Poll autocad_status or autocad_get_extents afterwards to confirm the result.

• Pin a version by setting AUTOCAD_PROGID, e.g. AUTOCAD_PROGID=AutoCAD.Application.24.1 for 2022.

• AutoCAD itself is commercial software. This project is not affiliated with Autodesk; you are responsible for your own AutoCAD licence.

License

MIT. See LICENSE.