# Popkern

> Open-source parametric CAD kernel and browser IDE for makers

- Website: https://popkern.dev
- Category: Other
- Launched on RankRoot: 2026-10-28
- Visitors sent by RankRoot: 0
- Show HN discussion: https://news.ycombinator.com/item?id=50272515

## About

Popkern is an open-source parametric boundary-representation geometry engine for solid CAD that lets users build complex parts using simple scripts. It features a browser-based IDE, G2 corner blends, an interactive feature tree with history scrubbing, and Model Context Protocol (MCP) support for AI agents.

## Who it's for

Engineers, developers, and makers who want to build solid CAD models using code.

## Use cases

- Building parametric solid CAD parts using scripts
- Exporting models to STEP files from the command line
- Using AI coding agents via MCP to edit and build CAD projects

## Features

- Parametric boundary-representation geometry engine
- Browser-based script editing and live rendering
- Numbered migration scripts with a history scrubber
- MCP server support for AI assistants
- Booleans, fillets, chamfers, sweeps, revolves, lofts, and shelling

## FAQ

### What does Popkern do?

Popkern is a parametric boundary-representation geometry engine for solid CAD that allows you to build complex parts using simple scripts.

### Who is Popkern for?

Popkern is for anyone who makes things and wants to create solid CAD models using code, scripts, or AI agents.

### How much does Popkern cost?

Popkern is open-source and free forever.

### Does Popkern support AI agents?

Yes, Popkern runs an MCP server so AI agents can list, edit, build, and export your CAD projects.

### How do you install and run Popkern?

You can install Popkern via a command-line script for macOS, Linux, or Windows, and run a local browser-based live IDE.


Source: https://getrankroot.com/launches/popkern. Product facts come from the maker or the product's own website.