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MCP for Unreal Engine

@chongdashu

代码仓库

基本信息

分类

AI 与智能体

传输方式

stdio

作者

chongdashu

关于 MCP for Unreal Engine

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 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

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

MCP for Unreal Engine 工具

工具列表暂未提供

当前收录暂时没有可展示的工具列表，不代表服务没有工具。请查阅项目文档了解支持的能力。

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

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

常见问题

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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