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autocad-mcp

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Data offered docs-verified: drawing file operations (create, open, info, save, save_as_dxf, plot_pdf, purge, get_variables, undo, redo) · entity create, read and edit (lines, circles, polylines, rectangles, arcs, ellipses, mtext, hatch, copy, move, array, etc.) · layer management (list, create, freeze, thaw, lock, unlock, set properties) · block operations (list, insert, attributes, define) · annotations (text, linear/aligned/angular/radius dimensions, leaders) · P&ID symbol library operations (insert symbols, equipment, valves, pumps, tanks, instruments, flow arrows) · viewport zoom and screenshot · server status and arbitrary AutoLISP execution
Formats docs-verified: DXF · PDF · MCP stdio
Access llm-inferred: Free and open under MIT licence. File IPC backend is a local install and needs AutoCAD LT 2024+ on Windows 10/11 with native Python 3.10+ and uv. The ezdxf headless backend runs without AutoCAD on Linux, macOS and WSL.

Use cases llm-inferred: Drive AutoCAD LT drawing setup and entity edits (lines, polylines, offsets, layers) from natural-language requests · Generate DXF drawings headlessly on Linux or in CI with the ezdxf backend for offline civils or drainage layouts · Add dimensions, text and leaders to drainage or civils drawing sheets · Insert P&ID symbols, equipment tags and flow arrows for water-treatment process diagrams (requires the CTO library)
Audience llm-inferred: civils engineers · drainage engineers · BIM/CAD technicians · process engineers (P&ID)

Constraints docs-verified: File IPC backend requires Windows 10/11, AutoCAD LT 2024+ and native Windows Python (WSL Python not supported) · AutoCAD LT for Mac does not support AutoLISP · offset, fillet and chamfer only work with the File IPC backend · ezdxf backend does not support undo, redo or plot_pdf · P&ID tools require the separate CTO symbol library installed at C:\PIDv4-CTO\ · Changing AUTOCAD_MCP_IPC_DIR also requires editing *mcp-ipc-dir* in mcp_dispatch.lsp

Check which backend is active (file_ipc when AutoCAD is running, ezdxf otherwise)

{
  "tool": "system",
  "arguments": {
    "operation": "status"
  }
}

Run an arbitrary AutoLISP expression in AutoCAD

{
  "tool": "system",
  "arguments": {
    "operation": "execute_lisp",
    "data": {
      "code": "(+ 1 2)"
    }
  }
}

Return entity and layer information for the current drawing

{
  "tool": "drawing",
  "arguments": {
    "operation": "info"
  }
}

Auto-extracted, unverified fields: tools, install, auth. Check upstream documentation.

Tools/install/auth auto-extracted from README; quality score heuristic (stars, recency, tool count, licence).

Metadata observed 15/10/2026 · research sweep: github-search