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AutoCAD LT AutoLISP MCP Server

MCP server for AutoCAD LT v3.1: freehand AutoLISP execution, 8 consolidated tools, File IPC + ezdxf backends, focus-free dispatch, undo/redo, P&ID

Local serverstdioPython

What is the AutoCAD LT AutoLISP MCP Server?

MCP server for AutoCAD LT v3.1: freehand AutoLISP execution, 8 consolidated tools, File IPC + ezdxf backends, focus-free dispatch, undo/redo, P&ID symbols, and

What you get

MCP server for AutoCAD LT automation and headless DXF generation.

Configuration and credentials

  • Windows 10/11 (the File IPC backend uses Win32 APIs for focus-free window messaging) - AutoCAD LT 2024 or newer — AutoLISP support was added in LT 2024 for Windows. AutoCAD LT for Mac exists but does not support AutoLISP. - Python 3.10+ (Windows native — not WSL Python) - uv package manager (install guide) > The

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Maintainer setup documentation.

Configuration

  • Windows 10/11 (the File IPC backend uses Win32 APIs for focus-free window messaging) - AutoCAD LT 2024 or newer — AutoLISP support was added in LT 2024 for Windows. AutoCAD LT for Mac exists but does not support AutoLISP. - Python 3.10+ (Windows native — not WSL Python) - uv package manager (install guide) > The
VariableDescriptionRequired
AUTOCAD_MCP_BACKENDConfiguration value read at startup.Optional

Frequently asked questions

Only for the File IPC backend. The ezdxf backend works on any platform without AutoCAD.

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