Bitbybit CAD MCP
dev.bitbybit · Updated
Bitbybit 3D parametric CAD API, version-exact, for coding agents: search, describe, examples, guide
At a glance
Bitbybit CAD MCP is an MCP server in the Web & Search category. It runs locally over stdio via `npx -y @bitbybit-dev/mcp`, and declares no required credentials. It scores A (89/100) on the MCP Skills Hub health score as of Oct 28, 2026.
One-click install
Opens your editor and pre-fills the config. Your editor will ask before adding it.
How to install Bitbybit CAD MCP in your AI client
Setup for Claude Code, Claude Desktop, Cursor, Codex, Windsurf, Cline and VS Code — copy-paste ready.
How to install Bitbybit CAD MCP in Claude CodeAnthropic's agentic CLI
Add the server
bashclaude mcp add cad -- npx -y @bitbybit-dev/mcpVerify it's connected
bashclaude mcp listSharing it with your team?
Add `--scope project` to write it to .mcp.json in the repository root, which you can commit (with the secrets left as environment variables).
Use it in a session
Ask Claude to use the tools this server exposes. It discovers them automatically.
How to install Bitbybit CAD MCP in Claude DesktopDesktop app (MCP config)
Open your MCP config
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json
Add this server
json{ "mcpServers": { "cad": { "command": "npx", "args": [ "-y", "@bitbybit-dev/mcp" ] } } }Restart Claude Desktop
The tools appear under the 🔌 menu once the app reloads.
How to install Bitbybit CAD MCP in CursorAI-first code editor
Create / edit .cursor/mcp.json in your project
json{ "mcpServers": { "cad": { "command": "npx", "args": [ "-y", "@bitbybit-dev/mcp" ] } } }Enable it
Cursor Settings → MCP → toggle the server on. Tools become available to the Composer/Agent.
How to install Bitbybit CAD MCP in Codex CLIOpenAI coding agent
Add to ~/.codex/config.toml
toml[mcp_servers.cad] command = "npx" args = ["-y", "@bitbybit-dev/mcp"]Run Codex
Codex loads MCP servers from config.toml on startup and exposes their tools to the agent.
How to install Bitbybit CAD MCP in WindsurfCodeium's agentic IDE
Edit ~/.codeium/windsurf/mcp_config.json
json{ "mcpServers": { "cad": { "command": "npx", "args": [ "-y", "@bitbybit-dev/mcp" ] } } }Reload
Windsurf → Cascade → refresh MCP servers. Cascade can now call the tools.
How to install Bitbybit CAD MCP in ClineVS Code autonomous agent
Open Cline → MCP Servers → Configure
Adds to cline_mcp_settings.json.
Add the server
json{ "mcpServers": { "cad": { "command": "npx", "args": [ "-y", "@bitbybit-dev/mcp" ] } } }
How to install Bitbybit CAD MCP in VS CodeCopilot / MCP support
Create .vscode/mcp.json
json{ "servers": { "cad": { "type": "stdio", "command": "npx", "args": [ "-y", "@bitbybit-dev/mcp" ] } } }Start it
VS Code shows a ▶ Start action above the server entry. Agent mode (Copilot Chat) can then use the tools.
What tools does Bitbybit CAD MCP expose?
This server runs as a local package. We only query remote servers for their tool list — asking this one would mean executing it, so its tools are listed in the documentation below.
What the code can do
Read from the published package source — never executed. Parsed 26 of 26 source files.
This server can read and write files, read your environment variables and read system information.
How it was published
- Published by a verified CI identity (github trusted publishing) rather than a personal token.
- Has a provenance attestation tying this artifact to the commit it was built from.
- 1 npm maintainer — a single point of compromise · last published by GitHub Actions.
Maintainer of this package and think something here is wrong? Tell us and we'll correct it.
Before you install
Signals gathered from the source repo and package registry — not a safety verdict.
What it can reach
- Runs code on your machine — Executes as a local process with your user's permissions, including filesystem access.
- Downloads at launch — The package is fetched from its registry each run unless you pin a version.
- Last commit today — Actively maintained.
- 207 GitHub stars — Community adoption signal.
Client compatibility
Health score
A · 89Maintenance, adoption, transparency and packaging — not a safety audit. How this is calculated
- Maintenance30%100%
Last commit 0 days ago.
- Adoption20%70%
207 stars.
- Transparency20%75%
3/4: ✓ public source repo, ✓ declared license, ✓ documentation, ✗ discoverable tool list.
- Provenance15%100%
Package and registry entry point at the same repository.
- Packaging15%100%
Publishes a pinned version (1.6.0).
Documentation
Full READMEBitbybit Monorepo
3D CAD algorithms for the web. This monorepo contains all Bitbybit NPM packages plus example applications, all MIT licensed. Their TypeScript is open source; the Bitbybit OCCT Kernel the @bitbybit-dev/occt package ships is MIT-licensed WebAssembly whose C++ kernel layer is closed source.
Written to be used by people and by AI coding agents alike: every function is published in a form an agent can look up while it writes - see Build It With an AI Agent.
License
Source code in packages/, languages/, and examples/ is MIT licensed. The Bitbybit OCCT Kernel the occt package ships is MIT-licensed too (LICENSE), but it is not built from this repository: its C++ kernel layer is closed source, and OCCT and the other open-source components compiled into it keep their own licenses (NOTICE). Documentation text in docs/ is CC BY 4.0. Logos, trademarks, and media assets are not open-source - see CONTENT-LICENSE.md for details.
Quick Start
Scaffold a fully-configured 3D CAD project in seconds:
npx @bitbybit-dev/create-app my-projectThe CLI first asks you to pick an app type:
- Frontend - Browser-based 3D/CAD app. Choose a game engine (Three.js, Babylon.js, or PlayCanvas) and OCCT architecture (32-bit, 64-bit, or 64-bit MT). You get a Vite + TypeScript project with all three CAD kernels (OCCT, JSCAD, Manifold) pre-configured.
- CAD Cloud - Full-stack project with server-side CAD via our CAD Cloud API. Choose a backend template (Hono + SDK, Hono + REST, Node.js + SDK, Node.js + REST, or .NET + REST). You get a React + Three.js frontend that proxies requests through your backend - your API key never leaves the server.
cd my-project
npm install
npm run devExcerpt — the full document is on GitHub.
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