autocad-mcp

<p align="center"> <img src="https://img.shields.io/badge/Claude_AI-MCP_Server-blueviolet?style=for-the-badge&logo=anthropic&logoColor=white" alt="Claude AI"> <img src="https://img.shields.io/badge/AutoCAD-684_Commands-blue?style=for-the-badge" alt="684 Commands"> <img src="https://img.shields.io/badge/55_Tools-MCP_Protocol-green?style=for-the-badge" alt="55 Tools"> <img src="https://img.shields.io/badge/TypeScript-Node.js-3178C6?style=for-the-badge&logo=typescript&logoColor=white" alt="TypeScript"> </p>

<h1 align="center">autocad-mcp</h1>

<p align="center"> <strong>The most complete MCP server for AutoCAD architectural design.</strong><br> 684 commands. 55 tools. Powered by Claude AI. </p>

<p align="center"> <em>Tell Claude what to draw. It handles the rest.</em> </p>

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What is this?

autocad-mcp is a Model Context Protocol (MCP) server that connects Claude AI directly to AutoCAD. It gives Claude the ability to execute 684 architectural design commands — walls, doors, windows, columns, stairs, dimensions, layers, hatching, annotations, and more.

Instead of clicking through menus, you just describe what you want:

"Draw a 3-bedroom apartment. 200mm exterior walls, 100mm partitions. Add doors, windows, and auto-dimension everything."

Claude does the rest.

Requirements

• Claude Pro/Max recommended for best results (more tool calls, longer context)
• Claude Desktop or Claude Code (MCP host)
• AutoCAD 2000+ on Windows
• Node.js v18+

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How it works

┌─────────────────┐                    ┌──────────────┐                    ┌──────────────┐
│   Claude AI     │   MCP Protocol     │  autocad-mcp │   File IPC         │   AutoCAD    │
│   (Desktop /    │ ◄────────────────► │  (Node.js)   │ ◄───────────────► │              │
│    Code)        │   55 tools         │  684 commands │   C:\temp\*.json   │  Arch Plugin │
└─────────────────┘                    └──────────────┘                    └──────────────┘

1. You tell Claude what to draw in natural language
2. Claude picks the right MCP tools and calls autocad-mcp
3. autocad-mcp writes command files to C:\temp\
4. The LISP bridge in AutoCAD executes them and writes results back
5. Claude reads the results and continues — iterating until your drawing is complete

Everything happens in seconds. No manual intervention needed.

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684 Commands across 22 Categories

| Category | Tools | Commands | Examples | |----------|:-----:|:--------:|---------| | Walls | 8 | 22 | Double-line, partition, curtain walls | | Doors & Windows | 6 | 34 | Single, double, sliding, French doors | | Columns | 6 | 9 | Rectangular, circular, L, T, hollow | | Stairs & Elevators | 6 | 8 | Straight, curved, escalators, lifts | | Dimensions & Grids | 8 | 58 | Auto-dim, linear, aligned, grid axes | | Layer Management | 9 | 35 | Create, freeze, isolate, rename | | Hatching & Materials | 4 | 26 | Stone, wood, insulation patterns | | Annotations | 6 | 48 | Text, leaders, title blocks, symbols | | + 14 more categories | -- | 444 | Blocks, editing, curves, viewports... | | Total | 55 tools | 684 commands | |

Plus 2 generic tools:

• yq_execute — run any of the 684 commands by name
• yq_list_commands — search and browse all commands by category

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Quick Start

1. Install

git clone https://github.com/xstaar/autocad-mcp.git
cd autocad-mcp
npm install && npm run build

2. Load LISP Bridge in AutoCAD

(load "C:/path/to/autocad-mcp/lisp/acad_mcp_bridge.lsp")
YQMCP-START

3. Configure Claude Desktop

Add to %APPDATA%\Claude\claude_desktop_config.json:

{
  "mcpServers": {
    "autocad": {
      "command": "node",
      "args": ["C:/path/to/autocad-mcp/dist/index.js"],
      "env": {
        "ACAD_LICENSE_KEY": "YOUR-KEY-HERE"
      }
    }
  }
}

4. Talk to Claude

"Create a structural grid 6x4m, place columns at every intersection, draw 200mm walls between them, add a main entrance door and 4 windows."

Claude will execute the commands in AutoCAD through autocad-mcp.

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Licensing

<p align="center"> <img src="https://img.shields.io/badge/24h_Free_Trial-brightgreen?style=for-the-badge" alt="Free Trial"> </p>

| Plan | Price | Duration | |------|-------|----------| | Free Trial | Free | 24 hours, all features | | Monthly | $9.99 | 30 days | | Yearly | $79.99 | 365 days (save 33%) |

How it works

1. Set your license key: set ACAD_LICENSE_KEY=ACMCP-XXXXX-XXXXX-XXXXX-XXXXX
2. Restart the server — your key auto-locks to your machine
3. One key = one machine. No exceptions.

Keys are validated through our activation server. Even with full source code access, license tokens cannot be forged — the signing key is server-side only.

Get a license

<p align="center"> <a href="https://t.me/plxarized"> <img src="https://img.shields.io/badge/Telegram-@plxarized-2CA5E0?style=for-the-badge&logo=telegram&logoColor=white" alt="Telegram"> </a> &nbsp; <a href="https://github.com/xstaar/autocad-mcp/issues"> <img src="https://img.shields.io/badge/GitHub-Open_Issue-181717?style=for-the-badge&logo=github&logoColor=white" alt="GitHub"> </a> </p>

Accepted payments: PayPal, cryptocurrency (BTC, ETH, SOL, USDT, and more).

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Why Claude Pro / Max?

This MCP server works with any Claude plan, but Claude Pro or Max is strongly recommended:

• More tool calls per conversation — architectural drawings need many sequential commands
• Longer context window — Claude can plan complex multi-room layouts in one go
• Priority access — no rate limits interrupting your workflow
• Extended thinking — better spatial reasoning for complex floor plans

With Claude Free, you'll hit tool call limits quickly. With Pro/Max, Claude can design and draw an entire building floor plan in a single conversation.

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Architecture

autocad-mcp/
├── src/
│   ├── index.ts          # MCP server (55 tools registered)
│   ├── ipc.ts            # File-based IPC with AutoCAD
│   ├── license.ts        # Server-side activation system
│   ├── commands.ts        # Registry of all 684 commands
│   └── tools/            # Typed tool implementations
├── lisp/
│   └── acad_mcp_bridge.lsp  # AutoCAD LISP dispatcher
├── website/              # Landing page + activation API
└── dist/                 # Compiled + obfuscated output

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Environment Variables

| Variable | Description | |----------|-------------| | ACAD_LICENSE_KEY | Your license key | | ACAD_MCP_IPC_DIR | IPC directory (default: C:/temp) | | ACAD_MCP_IPC_TIMEOUT | Response timeout in ms (default: 15000) |

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License

Proprietary Software. Source provided for transparency. See LICENSE.

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<p align="center"> _{An MCP server for <a href="https://claude.ai">Claude AI</a> | Powered by <a href="https://modelcontextprotocol.io">Model Context Protocol</a>} </p>