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Nodal.AcadMcp

MCP serverCommunity

An alpha in-process add-in for AutoCAD 2027 with 159 tools, 79 of them for AutoCAD Architecture walls, doors, spaces and roofs. By ed-fos.

5 starsUpdated 2 days agoGitHub data from 5 Nov 2026

At a glance

Type
MCP server
Works with
AutoCAD
How it connects
Drives a running copy of the tool
Access
Can modify models
Tool versions
AutoCAD 2027 only (not 2026 or earlier); AutoCAD Architecture 2027 for the ACA tools
Operating systems
Windows
Needs a AutoCAD licence
Yes
Transport
Local (stdio)
AI clients documented
Claude Desktop, Claude Code
Licence
Apache-2.0
Language
C#

What it can do

  • Creates and edits entities, blocks, annotation, layouts and sheets, and plots to PDF.
  • Builds 3D solids with primitives, booleans, extrude, revolve, loft and sweep.
  • Drives the AutoCAD Architecture object model, including walls, doors, windows, spaces, slabs, roofs, grids, stairs and generated sections.
  • Offers run_csharp, run_lisp and send_command for anything the named tools don't cover.

Limitations

  • Alpha, maintained by one person with no support promise; some actions can't be undone.
  • You start the bridge yourself in AutoCAD (NODALMCPSTART); three tools run arbitrary code, and the author asks you to read SECURITY.md first.
  • Building from source needs the .NET 10 SDK.

Install

claude mcp add --scope user nodal-acad -- "C:\Users\YOU\AppData\Local\Nodal.AcadMcp\server\Nodal.AcadMcp.Server.exe"

Source: github.com/ed-fos/autocad-mcp#2-point-your-mcp-client-at-the-server

MCP servers and skills run code on your computer. Review the source before installing.

AI-generated models, drawings and results must be checked by a qualified engineer before use.