CAD-Cowork-MCP

MCP server that lets AI Agents control AutoCAD / GstarCAD / ZWCAD via Windows COM interface.

通过 MCP（Model Context Protocol）让 AI Agent 控制 AutoCAD / 浩辰 CAD / 中望 CAD 的独立 MCP 服务器。

Features

• 129 parameterized API commands covering drawing, querying, modification, batch operations, etc.
• Smart command routing with automatic execution method selection
• Batch execution engine with DAG dependency and cross-command parameter passing (${cmd_id.field})
• GsLc process flow diagram domain-specific command disambiguation
• System prompt template guiding Agents to call commands correctly

Prerequisites

• Windows (requires COM interface)
• Python 3.10+
• AutoCAD / GstarCAD / ZWCAD (installed and running)
• cad-cowork-cstool .NET plugin loaded in CAD

Installation

For Claude Code users

Add to your Claude Code MCP settings:

{
  "mcpServers": {
    "cad-mcp": {
      "command": "uvx",
      "args": ["cad-cowork-mcp"]
    }
  }
}

For other MCP clients

# Install globally
pip install cad-cowork-mcp

# Or run directly with uvx
uvx cad-cowork-mcp

Configuration

CAD type

Edit config.json (inside the installed package) or set before launching:

MCP Tools

Usage Examples

// Draw a line
{"command_name": "api_draw_line", "parameters": {"startPoint": [0,0,0], "endPoint": [100,100,0]}}

// Draw a circle
{"command_name": "api_draw_circle", "parameters": {"center": [100,100,0], "radius": 50}}

// Insert a block
{"command_name": "api_insert_block", "parameters": {"blockName": "valve", "insertionPoint": [100,100,0]}}

// Query by layer
{"command_name": "api_query_by_layer", "parameters": {"layerName": "Equipment"}}

// Move entity
{"command_name": "api_move_entity", "parameters": {"entityHandle": "27E2C0", "fromPoint": [0,0,0], "toPoint": [100,100,0]}}

API Command Categories (129 total)

License

MIT