PA

ParCAD MCP

Open-source CAD your AI can check: parts written as JavaScript, built on an exact B-rep kernel and measured before you print.

Grade A Local · stdio No auth needed tools not listed v0.0.11
No reviews yet by ierehon1905GitHub 494 Runs on your machine, nothing hosted
93/100
trust score
494
downloads
local
runs on your machine
—
calls last 7d

What it does

ParCAD is parametric CAD you write as code. Your AI agent writes the part in a small JavaScript DSL, and ParCAD builds it with OpenCASCADE and measures it: size, volume, what it stands on, the thinnest wall, overhangs, and whether it fits the object it holds. Edges are picked by description, and .expect() fails the build when a selection changes. Exports STEP, STL and 3MF.Install on macOS or Linux: brew tap ierehon1905/parcad && brew trust ierehon1905/parcad && brew install parcad. On Windows: winget install ParCAD.ParCAD. Then connect your agent: claude mcp add parcad -- parcad mcp (Codex: codex mcp add parcad -- parcad mcp).No install needed to try it: https://ierehon1905.github.io/parcad/app/ runs the whole app in a browser tab. Getting started: https://github.com/ierehon1905/parcad/blob/main/docs/GETTING_STARTED.md. Privacy: https://github.com/ierehon1905/parcad/blob/main/PRIVACY.md

Quickstart

This one is not published to a package registry, so there is no one-line install: it is built and started the way its own source says.

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