Connects Claude directly to FreeCAD through 30+ tools covering parametric modeling, PartDesign operations, CAM toolpath generation, and mesh manipulation. Runs as a bridge between your AI session and live FreeCAD instances, handling document management, sketch constraints, solid operations, and Report View diagnostics. Supports multiple simultaneous FreeCAD processes with instance switching via UUID or labels. Built for daily production use designing parts and generating CNC toolpaths, not just demos. Requires FreeCAD 1.2-dev for CAM features, 1.1.x for everything else. Includes crash instrumentation and socket-based IPC. The author uses it to debug broken external references, generate parametric macros, and iterate on designs through conversation rather than clicking through menus.
claude mcp add --transport stdio blwfish-freecad-mcp uvx freecad-mcp