Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
MCP server that exposes build123d parametric CAD operations as tools, enabling AI assistants to create, inspect, and iterate on 3D geometry interactively. Renders PNG/SVG views, measures geometry, and exports STEP/STL.