Control FreeCAD from Claude Desktop and other MCP clients. Create and edit models, run Python scripts, inspect documents, and run FEM analyses.
Design a flange:
See more demos and examples for a toy car, modelling from a 2D drawing, and agent integrations.
You need FreeCAD and uv / uvx. FreeCAD MCP has two components: an addon running inside FreeCAD and an MCP server launched by your client.
git clone https://github.com/neka-nat/freecad-mcp.git
cd freecad-mcpCopy addon/FreeCADMCP into your FreeCAD addon directory,
then restart FreeCAD. Select the MCP Addon workbench and click
Start RPC Server in the FreeCAD MCP toolbar.
See the installation guide for platform-specific commands and screenshots.
Add the following entry to claude_desktop_config.json:
{
"mcpServers": {
"freecad": {
"command": "uvx",
"args": ["freecad-mcp"]
}
}
}Restart Claude Desktop to load the configuration, keep FreeCAD open with its RPC
server running, and ask Claude to create a model. Connections use localhost by
default.
| Guide | Contents |
|---|---|
| Installation | Addon directories, setup screenshots, running from source |
| Configuration | Auto-start, text feedback, remote connections |
| Tools | Available tools, screenshots, FEM analysis |
| Code execution | GUI execution, background jobs, headless scripts, timeout troubleshooting |
| Demos and examples | Design demos, FEM example, ADK and LangChain integrations |
Made with contrib.rocks.
