josephwu®

FreeCAD MCP

Modeling parametric CAD by talking to Claude.

Year
2025
Role
Builder, design engineering
Tags
CADMCPAgentic

Modeling 3D parts by talking to Claude.

FreeCAD MCP is a Model Context Protocol server that wires Claude directly into FreeCAD's Python API. Instead of clicking through menus, you say what you want (create a body, add a feature, rotate the view) and the agent runs it against the live document.

It's two pieces. The MCP layer exposes FreeCAD's scripting surface so the agent can drive the Python API directly. On top of it, a conversational interface maps plain commands to real modeling operations across the PartDesign and Part workbenches and the view controls.

FreeCAD modeling a part driven by a conversational AI session.