CAD-MCP Server

MCP serverCommunity

Controls a running AutoCAD, GstarCAD or ZWCAD over Windows COM with 35 tools for drawing, editing, querying and saving. By daobataotie.

671 starsUpdated 10 days agoGitHub data from 5 Nov 2026

At a glance

Type: MCP server
Works with: AutoCAD
How it connects: Drives a running copy of the tool
Access: Can modify models
Tool versions: unknown (AutoCAD COM ProgID auto-detected from the registry, or set one such as AutoCAD.Application.25.1)
Operating systems: Windows
Needs a AutoCAD licence: Yes
Transport: Local (stdio), Remote (HTTP)
AI clients documented: Claude Desktop, Cursor, Windsurf, TRAE
Licence: MIT
Language: Python

What it can do

Draws lines, arcs, polylines, hatches, text and linear dimensions, and edits entities by handle (move, rotate, scale, mirror, offset, arrays).
Lists layers and entities and returns entity properties, plus a screenshot of the CAD window so the agent can check its work.
Opens, saves and closes DWG or DXF files, manages blocks, and passes any command line through a send_command tool.
Can run over Streamable HTTP so several clients share one CAD session.

Limitations

Windows only; needs the CAD application installed and pywin32.
Configuration lives in src/config.json, and the README gives no tested AutoCAD versions.

Install

# Option 1: Run directly (fully compatible with existing Claude/Cursor configs)
python src/server.py

# Option 2: Install as a CLI tool
pip install -e .
cad-mcp

Source: github.com/daobataotie/CAD-MCP#starting-the-service

MCP servers and skills run code on your computer. Review the source before installing.

AI-generated models, drawings and results must be checked by a qualified engineer before use.