MCP Servers

UE-MCP

Enables AI assistants to interact with Unreal Editor 5 through the Python remote execution protocol. It allows for managing the editor lifecycle, configuring project settings, and executing Python scripts directly within the Unreal Engine environment.

README

UE-MCP

MCP server for Unreal Editor interaction.

Overview

UE-MCP is a FastMCP-based MCP server that enables AI assistants to interact with Unreal Editor through the Python remote execution protocol.

Features

Project Isolation: Each MCP server instance is bound to a single UE5 project (auto-detected from working directory)
Managed Editor Lifecycle: Server manages the editor process and ensures cleanup on exit
Auto Configuration: Automatically configures Python plugin and remote execution settings
Remote Execution: Execute Python code in the editor via socket protocol

Installation

pip install -e .

Usage

Run the server from a UE5 project directory:

cd /path/to/your/ue5/project
ue-mcp

Or use with FastMCP:

fastmcp run ue_mcp.server:mcp

MCP Tools

editor.launch(additional_paths, wait, wait_timeout) - Launch Unreal Editor (synchronous by default)
editor.status() - Get editor status
editor.stop() - Stop the editor
editor.execute(code) - Execute Python code in the editor
editor.configure() - Check/fix project configuration
project.build(target, configuration, platform, clean, wait, verbose) - Build the UE5 project using UnrealBuildTool

Claude Code Configuration

Add to your .claude/settings.json:

{
  "mcpServers": {
    "ue-mcp": {
      "command": "ue-mcp"
    }
  }
}

Requirements

Python >= 3.10
Unreal Engine 5.x with Python plugin
FastMCP >= 2.0.0

License

MIT

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