Hosted VextCAD
Describe the part to Vextor, the design assistant, in everyday words, or have your own AI agent write it in VXL. VextCAD builds it on the server as exact CAD (STEP) or a printable mesh (3MF, STL), then measures the result against every requirement written down.
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"requirements": [
{ "id": "large_teeth",
"kind": "gear_teeth",
"subject": "large",
"module": "1.5",
"pressure_angle": "20",
"teeth": "2 * pinion_teeth",
"thinning": "backlash / 2", … },
{ "id": "large_bore",
"kind": "hole",
"subject": "large",
"diameter": "6.3",
"through": ["0", "8"], … },
…
]
The agent reads the VXL docs through MCP and writes one document: parameters, sketches, solid and mesh operations, and the requirements the part must meet.
A static check answers in about a second. The build runs the VextCAD engine on the server: exact parts come out as STEP, meshes as 3MF and STL, each with rendered views.
RELEASE when every requirement was measured on the built geometry and passed. HOLD or FAILED comes with a revision packet that tells the agent what to change before it builds again.
RELEASE means the part matches its own measured requirements. It is not a print or engineering certification.
Four documents written for this page and built here as RELEASE. Every number comes from the build's own report; the pictures are rendered by VextCAD's own renderer from the STL each build delivered.
Exact B-Rep: ten backward-swept vanes with sloped crowns, ten splitter vanes and a flared hub around a 10 mm bore. The checks find every vane's outlet face, the bore, the backplate and the crown planes.
VXL sourceBuild 55f903a8
A solid gyroid network of 3 × 3 × 3 cells, 16 mm each, filling a 48 mm cube. The field is extracted on a 0.4 mm grid and checked as one closed piece with no self-intersections: the classic lightweight infill.
VXL sourceBuild 8fbba59b
One closed sweep of a six-point star along a trefoil, twisted four full turns. The document computes every point and tangent of its 24 cubic segments itself.
VXL sourceBuild 7d7d04aa
Sixteen sharp ridges twist 330° up an amphora profile. The whole body is one formula field, hollowed into a shell with a 3 mm floor and an open mouth.
VXL sourceBuild d6e32343
VextCAD runs as a remote MCP server. Your agent signs you in through the browser, then reads the docs, checks and builds parts, and downloads the files. Nothing to install.
MCP server
https://mcp.vextcad.com/mcp
Other clients: add the URL above as a remote MCP server (Streamable HTTP). Sign-in uses OAuth.
Create an API key in the portal and call the HTTP API, or use the Node.js client. HTTP API guide
claude mcp add --transport http vextcad https://mcp.vextcad.com/mcpThen run /mcp in Claude Code and authenticate vextcad.
codex mcp add vextcad --url https://mcp.vextcad.com/mcp
codex mcp login vextcadBuilds queue when the service is busy.
We are looking for a few design partners who need functional parts generated at scale: product configurators, jigs and fixtures, enclosures, replacement parts. Tell us what you build.