A browser 3D CAD for your AI: it scripts real-size models, uCAD builds them and returns pictures.
Connect Remote server
claude mcp add --transport http ucad https://ucad.app/api/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"ucad": {
"url": "https://ucad.app/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"ucad": {
"type": "http",
"url": "https://ucad.app/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://ucad.app/api/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 7 found in our last check
specsuCAD's script language at spec version cae9943a0a: a small Python, with every function, its arguments and the objects it returns, the rules, how this service works, the reference examples and what is new. Needed to write a script for run_script; the language changes, and this is…
exampleThe script of one of the reference examples listed by specs (by its id): a finished model built carefully in uCAD's language, to learn from before building something like it.
run_scriptRun a whole uCAD script on a drawing in the user's account (a new drawing when `drawing` is left out) and keep the result there. Returns the report (every solid with its size and place, warnings, print() output, or the error with its line), the drawing's id and link, and picture…
viewPictures of a drawing as it is now (with anything the user changed by hand), from the sides asked for.
sceneWhat is in a drawing now: its solids and objects with sizes and places, flat shapes drawn by hand, and its script with line numbers.
shareA link to a drawing that anyone can open, with no uCAD account: they see the drawing as it is now (and as it changes later) in uCAD, and can turn it around, measure it, cut sections, download it and edit a copy of their own; its script goes with it. Use it when the user wants to…
drawingsThe drawings kept in the user's uCAD account, newest first: id, name, when changed, link (and the link anyone can open, for those shared).
Headers
| Name | Description |
|---|---|
AuthorizationRequired, secret | Bearer ucad_… — your key from uCAD (sign in, assistant menu, Use uCAD from your AI) |
Details
| Endpoint | https://ucad.app/api/mcp (Streamable HTTP) |
| First published | 6 Nov 2026 |
| Last updated | 6 Nov 2026 |
| Registry name | app.ucad/ucad |
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