Which integrations are available for this server?

Provides direct parametric control over Autodesk Inventor CAD models, including tools for connection management, document operations, sketch creation, 3D features, parameter editing, iProperties management, and export to STEP, STL, PDF, and DXF formats.

How do I use mcp-cad?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@mcp-cad extrude the sketch profile by 10 mm" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

mcp-cad

MCP server for Autodesk Inventor. Give AI agents direct parametric control over your CAD models.

32 tools across 7 domains — connection, documents, sketches, 3D features, parameters, iProperties, and export. All through COM automation. No VBA, no macros.

Requirements

Windows with Autodesk Inventor installed (any recent version)
Python 3.10+
OpenCode, Claude Desktop, or any MCP-compatible client

Quick start

git clone https://github.com/Andiveli/mcp-cad.git
cd mcp-cad
.\scripts\install.ps1

The installer creates a virtual environment, installs dependencies, runs the test suite, and auto-configures OpenCode. Open the folder in OpenCode and the server starts automatically.

Tools

Connection

Tool	Description
`inventor_connect`	Connect to a running Inventor instance or launch a new one
`inventor_health`	Check connection health and document state
`inventor_disconnect`	Release COM reference without closing Inventor

Documents

Tool	Description
`doc_open`	Open an existing Inventor document
`doc_new_part`	Create a new part document
`doc_new_assembly`	Create a new assembly document
`doc_save`	Save the active document
`doc_save_as`	Save to a new path
`doc_close`	Close the active document

Sketches

Tool	Description
`sketch_create`	Create a new sketch on XY, XZ, or YZ plane
`sketch_line`	Draw a line segment
`sketch_circle`	Draw a circle
`sketch_arc`	Draw an arc
`sketch_rectangle`	Draw a rectangle (2-corner)
`sketch_dimension`	Add a dimension constraint

3D Features

Tool	Description
`extrude`	Extrude a sketch profile (join/cut/intersect)
`revolve`	Revolve a profile around an axis
`fillet`	Apply fillet to edges
`chamfer`	Apply chamfer to edges

Parameters

Tool	Description
`param_list`	List model parameters (with optional filter)
`param_get`	Get a parameter value
`param_set`	Set a parameter value
`param_set_expression`	Set a parameter using an expression

iProperties

Tool	Description
`iproperty_get`	Get an iProperty
`iproperty_set`	Set an iProperty
`iproperty_summary`	Get all Summary iProperties
`iproperty_custom_get`	Get a custom property
`iproperty_custom_set`	Set (or create) a custom property

Export

Tool	Description
`export_step`	Export to STEP
`export_stl`	Export to STL
`export_pdf`	Export to PDF
`export_dxf`	Export sketch/flat pattern to DXF

Architecture

mcp_cad/
├── server.py              FastMCP instance + 32 tool registrations
├── errors.py              Exception hierarchy (InventorError → COM/permission/not-found)
├── inventor/
│   ├── client.py          COM connection lifecycle (connect, health, disconnect)
│   ├── document.py        Document operations
│   ├── sketch.py          2D sketch geometry
│   ├── feature.py         3D features
│   ├── parameter.py       Model parameters
│   ├── property.py        iProperties
│   └── export.py          STEP/STL/PDF/DXF export
└── tests/
    200 tests, COM-mocked, run on Linux

All managers receive the driver and access the COM object via driver.inventor — a property that always reflects the current connection state. No stale references.

Development

# Run tests (works on Linux)
python -m pytest tests/ -v

# Run with coverage (needs pytest-cov in venv)
python -m pytest tests/ --cov=mcp_cad --cov-report=term-missing

Tests mock the entire COM layer — no Inventor installation needed for development. 200 tests covering happy paths, error scenarios, disconnected guards, and edge cases.

Configuration

OpenCode (auto-configured by installer)

{
  "mcp": {
    "mcp-cad": {
      "type": "local",
      "command": [".venv\\Scripts\\python.exe", "-m", "mcp_cad"]
    }
  }
}

Claude Desktop (manual)

{
  "mcpServers": {
    "mcp-cad": {
      "command": "C:\\path\\to\\mcp-cad\\.venv\\Scripts\\python.exe",
      "args": ["-m", "mcp_cad"]
    }
  }
}

Limitations

Windows-only (Inventor COM requires native Windows)
stdio transport only (SSE/remote transport planned)
No Docker support (COM cannot cross container boundaries)
Assemblies, drawings, iLogic, and sheet metal not yet implemented

This server cannot be installed

F

license - not found

-

quality - not tested

C

maintenance

How are these scores calculated?

Resources

GitHub Repository

Need Help?

Related Servers

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

mcp-cad

mcp-cad

Requirements

Quick start

Tools

Connection

Documents

Sketches

3D Features

Parameters

iProperties

Export

Architecture

Development

Configuration

OpenCode (auto-configured by installer)

Claude Desktop (manual)

Limitations

Resources

Looking for Admin?

Latest Blog Posts

MCP directory API