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MCP for Unreal Engine

@chongdashu

リポジトリ

基本情報

カテゴリ

AI とエージェント

トランスポート

stdio

作者

chongdashu

MCP for Unreal Engine について

Enable AI assistant clients like Cursor, Windsurf and Claude Desktop to control Unreal Engine through natural language using the Model Context Protocol (MCP).

#unreal-engine-5#mcp-server#modelcontextprotocol

MCP for Unreal Engine の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "unrealMCP": {
      "command": "uv",
      "args": [
        "--directory",
        "<path/to/the/folder/PYTHON>",
        "run",
        "unreal_mcp_server.py"
      ]
    }
  }
}

MCP for Unreal Engine のツール

ツール一覧はまだありません

この掲載には表示できるツール一覧がまだありません。サーバーにツールがないという意味ではありません。対応機能はプロジェクトのドキュメントをご確認ください。

ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。

概要

What is Model Context Protocol for Unreal Engine?

An experimental integration that enables AI assistant clients like Cursor, Windsurf, and Claude Desktop to control Unreal Engine through natural language using the Model Context Protocol (MCP). It consists of a UE plugin (C++ TCP server) and a Python MCP server that expose tools for actor, Blueprint, and editor operations.

How to use Model Context Protocol for Unreal Engine?

You use the provided Unreal sample project or copy the plugin into your own project, enable the plugin, and build it. Then set up the Python server (requires Python 3.12+), and configure your MCP client (e.g., Claude Desktop, Cursor, Windsurf) with a JSON configuration pointing to unreal_mcp_server.py. The server communicates with the plugin over TCP (port 55557).

Key features of Model Context Protocol for Unreal Engine

  • Create and manipulate actors (cubes, lights, cameras, etc.)
  • Set and query actor transforms and properties
  • Create Blueprint classes and add components
  • Compile Blueprints and spawn Blueprint actors
  • Add nodes to Blueprint graphs and connect them
  • Control viewport focus and camera

Use cases of Model Context Protocol for Unreal Engine

  • Automate actor level layout using natural language
  • Rapidly prototype Blueprint logic through chat commands
  • Generate and position lighting in a scene via AI assistant
  • Create input mappings for player controls without manual setup

よくある質問

1

What are the system requirements?

Unreal Engine 5.5+ and Python 3.12+ are required. An MCP-compatible client (Claude Desktop, Cursor, or Windsurf) is also needed.

2

How do I configure the MCP client?

Add a JSON entry under `mcpServers` in your client’s configuration file, specifying `uv` as the command with arguments pointing to the Python directory and `unreal_mcp_server.py`. The file location varies: Claude Desktop uses `~/.config/claude-desktop/mcp.json`, Cursor uses `.cursor/mcp.json` in the project root, and Windsurf uses `~/.config/windsurf/mcp.json`.

3

Is this production‑ready?

No, the project is currently experimental. Features may be incomplete or unstable, breaking changes can occur without notice, and production use is not recommended.

4

What transport does the Python server use?

The Python server uses TCP sockets (port 55557) to communicate with the Unreal Engine C++ plugin, and implements the Model Context Protocol via the FastMCP library.

5

Where can I ask questions or report issues?

You can reach the author on X/Twitter: [@chongdashu](https://www.x.com/chongdashu).

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