Bitbybit CAD MCP
Bitbybit 3D parametric CAD API, version-exact, for coding agents: search, describe, examples, guide
Connect it
Settings → Connectors → Add custom connector
URL: https://mcp.bitbybit.dev/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://mcp.bitbybit.dev/mcp{
"mcpServers": {
"cad": {
"url": "https://mcp.bitbybit.dev/mcp"
}
}
}claude mcp add --transport http cad https://mcp.bitbybit.dev/mcp{
"servers": {
"cad": {
"type": "http",
"url": "https://mcp.bitbybit.dev/mcp"
}
}
}{
"mcpServers": {
"cad": {
"command": "npx",
"args": [
"-y",
"@bitbybit-dev/mcp@1.5.0"
]
}
}
}claude mcp add cad -- npx -y @bitbybit-dev/mcp@1.5.07 tools, verified live
search_apiread-onlyFind 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.
describeread-onlyThe 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'
list_namespaceread-onlyThe 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.
get_examplesread-onlyWorking 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.
get_guideread-onlySections 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),
searchread-onlySearches 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.
fetchread-onlyFetches the full documentation of one Bitbybit API member by id (a dotted path returned by search) as text, with its title, url and metadata.
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