BIM-MODE AutoCAD MCP

Security-hardened Model Context Protocol (MCP) server and stdio bridge for Autodesk AutoCAD (2021-2025) by BIM-MAN Company.

Quick Install

Option 1: GitInstall (PowerShell one-liner)

irm https://raw.githubusercontent.com/BIM-MODE/BIM-MODE-AutoCAD-MCP/main/gitinstall.ps1 | iex

This downloads the latest verified release archive, installs BIM-MODE-AutoCAD.bundle to your Autodesk ApplicationPlugins folder, installs BimMode.Bridge.exe, and connects detected AI clients automatically.

Option 2: npm / npx

npx bim-mode-autocad-mcp --install

Or add directly in your MCP client config:

{
  "mcpServers": {
    "bim-mode-autocad-mcp": {
      "command": "npx",
      "args": ["-y", "bim-mode-autocad-mcp"]
    }
  }
}

Option 3: Manual Release ZIP

1. Download BIM-MODE-AutoCAD-MCP-v*.zip from GitHub Releases.

2. Extract and run INSTALL.bat.

3. Start or restart AutoCAD (2021-2025) and open the BIM-MODE AutoCAD MCP ribbon tab.

Related MCP server: autocad-mcp

Supported AutoCAD Versions & Commands

• AutoCAD 2021 - 2024 (.NET Framework 4.8)

• AutoCAD 2025+ (.NET 8)

• Ribbon / CLI commands inside AutoCAD:

  • BIMMODECONNECT - Connect Claude Desktop, Claude Code, Cursor, Windsurf, Gemini CLI, VS Code, LM Studio, Kimi, or Codex

  • BIMMODESTATUS - Show server port, security posture, and connected AI clients

  • BIMMODEREADONLY - Toggle read-only mode (blocks all drawing writes)

  • BIMMODEAPPROVAL - Toggle interactive approval prompts before drawing writes

  • BimMode / BimModeSTOP - Start or stop the local MCP server

Security Architecture

See SECURITY.md for full details. Defaults out of the box:

• Loopback-only HTTP (127.0.0.1) with Host/Origin checks against DNS-rebinding

• Per-user 256-bit random bearer token with restrictive user ACLs

• Write approval prompts ON ("approval": "writes")

• Arbitrary command/LISP/script execution OFF ("allowFullTrustCode": false)

• Path validation blocking UNC credential leaks, WebDAV paths, and Windows device paths

• IT enterprise policy enforcement via C:\ProgramData\BIM-MODE\policy.json (policy.json template included)

License

Apache License 2.0 (LICENSE-APACHE-2.0.txt) - BIM-MAN Company