Bitbybit CAD MCP Server

by bitbybit Your server? Claim it

answering

Bitbybit CAD MCP is answering right now. Last checked 11 min ago. 207 installs a week from npm. It exposes 7 tools. Last commit 29 Oct 2026.

Bitbybit 3D parametric CAD API, version-exact, for coding agents: search, describe, examples, guide

Installs per day peak 211 · avg 35 · -51% w/w

a month agotoday

Uptime history 49 days of history · worst day 93%

49 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

221 ms

Response time

average over 24h

207

Installs / week

npm and PyPI

What changed 8

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 September 2026. No other catalogue keeps this.

29 Oct a tool changed version

12 Oct 2 tool descriptions were rewritten describe, get_guide

12 Oct 2 tools changed the parameters they ask for describe, get_guide

12 Oct a tool changed version

2 Oct a tool changed version

30 Sep a tool changed version

What the code does

We read the source, 1 d ago · tools taken from the live server · rules 995398eba69f

In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Builds a database query by concatenation packages/dev/create-app/templates/apps/drone-assembly/src/parts.ts:33

export const GROUND_LIFT = FRAME.leg.drop + FRAME.damper.length + FRAME.foot.height;

Builds a file path from a variable packages/dev/create-app/src/index.ts:507

        const templateDir = path.join(TEMPLATES_ROOT, bundler, engine, language);

Runs an external command packages/dev/ifc/validation/validate.run.ts:45

    const run = spawnSync(PYTHON, [CHECKER, ...files], { encoding: "utf8", maxBuffer: OUTPUT_LIMIT });

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Nothing serious here today

Today is the operative word: we check Bitbybit CAD MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add cad --transport http https://mcp.bitbybit.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp.bitbybit.dev/mcp

~/.codex/config.toml

[mcp_servers.cad]
url = "https://mcp.bitbybit.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "cad": {
      "url": "https://mcp.bitbybit.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "cad": {
      "type": "http",
      "url": "https://mcp.bitbybit.dev/mcp"
    }
  }
}

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

api

search_api

Find Bitbybit API members (methods, namespaces, cloud operations) by keywords, for example "box solid" or "fillet edges". Returns dotted paths with a one-line summary, the tier (oss on npm, platform-pro only at bitbybit.dev, cloud-pro only on CAD Cloud) and the engines each is published for. Call describe with a path before writing code that uses it.

describe

describe

The exact contract of one member by dotted path, for example occt.shapes.solid.createBox: signature, every parameter with its type, default and range, the return type, the documentation, examples and where it runs. Answers are for the API version the server holds. It also describes the types a member returns or takes by their name, for example Inputs.IFC.SpaceInfoDto, field by field, and a member's answer lists those types. An unknown path is reported as not found together with the nearest existing paths; nothing is guessed.

examples

get_examples

Working TypeScript examples for a member path, for a namespace, or for a topic given as keywords. Each example names the member it belongs to and links its reference page. Examples are written for the API version the server holds.

fetch

fetch

Fetches the full documentation of one Bitbybit API member by id (a dotted path returned by search) as text, with its title, url and metadata.

guide

get_guide

Sections of the public guides: building with Bitbybit (what runs in the browser, on a server, on a lightweight backend, and what needs CAD Cloud), writing geometry with the kernels (which kernel to use, the order to build a part in, choosing edges, checking and exporting shapes), writing design documents (parametric models as JSON: parameters, sketches, features, references, parts and assemblies), and writing IFC building models (storeys, walls and their joins, doors, windows, slabs, roofs, rooms, properties and quantities). Without a topic it lists the sections. Read "integrate" before recommending where geometry should run: the npm packages are the default, and CAD Cloud is for algorithms that exist only there or compute the caller cannot provide. Read "geometry" before writing geometry code, "design" before writing a design document, and "ifc" before writing an IFC model.

namespace

list_namespace

The members one level below a namespace path, for example occt.shapes, each with its kind and summary. Without a path, the top-level namespaces. Use it to discover what exists before searching for details.

search

Searches the Bitbybit API documentation and returns a list of results with id, title and url. Each id is a dotted API path that fetch accepts.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.bitbybit.dev/mcp	streamable-http	answering	203 ms	11 min ago

Alternatives to Bitbybit CAD MCP

same job, measured the same way

Bitbybit CAD Cloud MCP

by bitbybit

Run 3D CAD operations, pipelines, parametric models and STEP conversions on CAD Cloud with a key

answering

ParCAD

by ierehon1905

Parametric CAD as code: model 3D-printable parts on an exact B-rep kernel, measured.

local only

OwlCAD

by owlcad

Parametric 3D CAD for AI agents: build print-ready parts, check them, export STL, 3MF or STEP.

answering

Yandex Metrica MCP

by stufently

Yandex Metrica for AI agents: counters, goals, Reporting API and Logs API export over stdio.

local only

Apolo Cad

by mariorojasmz

Agent-native parametric 3D CAD: model machines, validate them and emit shop drawings

86 installs/wk local only

MCP Victoriametrics

by victoriametrics-community

MCP Server for VictoriaMetrics. Provides integration with VictoriaMetrics API and documentation

local only

MCP Victoriametrics

by victoriametrics

MCP Server for VictoriaMetrics. Provides integration with VictoriaMetrics API and documentation

local only

Content Intelligence API

by ruvendors5-ops

9 MCP tools: extract, analyze, research, compare, monitor, brief. Pay-per-call x402 or subscribe.

9 tools answering

Bitbybit CAD MCP — questions

Answers built from our own checks of this server.

What can Bitbybit CAD MCP do?

It exposes 7 tools, read directly from the server on our last check. Among them: describe, fetch, get_examples, get_guide, list_namespace, search and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Bitbybit CAD MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 221 ms. The bar chart above shows every period we have measured.

How do I connect Bitbybit CAD MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Bitbybit CAD MCP need an API key?

No. Bitbybit CAD MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Bitbybit CAD MCP?

It answers our handshake in 221 ms on average, which is faster than 64% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Bitbybit CAD MCP?

The npm package @bitbybit-dev/mcp was installed 207 times in the last week. Week over week that is -51%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Bitbybit CAD MCP open source?

The code is open source: it is published under the MIT licence, written in TypeScript, 209 stars on GitHub and 7 open issues. The licence covers the code in the repository, not the hosted service at mcp.bitbybit.dev, which runs on its operator's own terms.