cad-ai
Web-based CAD assistant pitched as a Cursor-style copilot for CAD design work.
What it does and how it connects
cad-ai is a web app that presents itself as a Cursor-style copilot for CAD design. The user types a prompt such as a flange with a 50 mm diameter and six M8 bolt holes, and the app generates the CAD design in the browser. The README is short: it covers setup, example prompts and the tech stack, and little else.
It is built with Next.js, the Mastra SDK and the Vercel AI SDK. It calls the OpenAI API and the KittyCAD API for geometry, and it needs Redis running locally. The user supplies their own OpenAI and KittyCAD API keys.
Alternatives
Compare side by side- open-poly
A browser-based open source CAD tool with a constraint solver and MCP access, rather than a thin web front end over the OpenAI and KittyCAD APIs.
- CADStudio
An AI-native parametric CAD environment for the web with an editable feature tree and CadQuery export, rather than a prompt-to-model web app.
- text-to-cad (salonibalkondekar)
Turns text into CAD models using LLMs with a BadCAD backend, with a live code editor and STL export.
- luminicad
A web CAD editor that builds models from text descriptions on Chili3D, with a scripting interface.
- parcad
Parametric CAD written as code with its own exact kernel and MCP surface, rather than a web app over hosted APIs.
Sources
Not verified
- License (no LICENSE file in the repository and no license stated in the README)
- Pricing (no price stated; the user brings OpenAI and KittyCAD API keys)
- Real user voices (the repository has no public issues; its only pull requests are the maintainer's)
- Related Error Index entries (no entry verified for this tool's generic CAD scope)
- A named individual builder beyond the repository owner handle hireshBrem
Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.