Unreal Engine MCP Server

Content

Unreal Engine MCP Server connects Claude and other MCP clients to Unreal Engine through the included McpAutomationBridge plugin. It supports a native HTTP/SSE MCP transport in the Unreal plugin and a TypeScript stdio bridge that can be launched through npx unreal-engine-mcp-server.

Use it when Claude needs supervised access to Unreal Engine project structure, assets, actors, levels, Blueprints, Niagara effects, Sequencer workflows, screenshots, logs, tests, and editor automation.

Source Review

• https://github.com/ChiR24/Unreal_mcp
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/README.md
• https://registry.npmjs.org/unreal-engine-mcp-server
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/LICENSE
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/server.json
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/package.json
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/plugins/McpAutomationBridge/README.md
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/src/cli.ts
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/src/index.ts
• https://raw.githubusercontent.com/ChiR24/Unreal_mcp/main/plugins/McpAutomationBridge/Source/McpAutomationBridge/Private/MCP/McpNativeTransport.cpp

These sources were reviewed on 2026-06-06. Prefer the live repository, README, npm metadata, license, server manifest, package metadata, plugin README, TypeScript entrypoints, and native transport source for current setup and behavior details.

Features

• Control Unreal Engine through a native C++ automation bridge plugin.
• Connect through native MCP HTTP/SSE transport or the TypeScript stdio bridge.
• Browse, import, duplicate, rename, delete, and create project assets.
• Spawn, delete, transform, tag, and inspect actors and components.
• Load, save, manage, and inspect levels, lighting, streaming, and viewport state.
• Work with Blueprint, Niagara, Material, Behavior Tree, animation, physics, audio, Sequencer, PCG, landscape, foliage, and gameplay systems.
• Run editor control tasks such as screenshots, Play-In-Editor sessions, logs, tests, UnrealBuildTool actions, console variables, and project settings.
• Use optional capability-token authentication, TLS, loopback binding, command validation, path sanitization, and rate limits for safer local automation.

Installation

Install the included McpAutomationBridge plugin into an Unreal Engine project and enable the required Unreal plugins. For the TypeScript bridge, add the npm server to Claude:

claude mcp add unreal-engine -- npx unreal-engine-mcp-server

Or add the stdio bridge manually:

{
  "mcpServers": {
    "unreal-engine": {
      "command": "npx",
      "args": ["unreal-engine-mcp-server"],
      "env": {
        "UE_PROJECT_PATH": "C:/Path/To/YourProject"
      }
    }
  }
}

The plugin also supports a native MCP HTTP transport from inside Unreal. Enable Native MCP in the plugin settings, keep the listener on loopback unless you have a separate network-security plan, and connect clients to the configured local MCP endpoint.

Use Cases

• Ask Claude to list project assets or inspect an Unreal content directory.
• Spawn lights, cameras, actors, or debug shapes in a test level.
• Create or update materials, Blueprint graphs, Niagara effects, or Behavior Tree nodes under review.
• Capture viewport screenshots for debugging, review, or iteration notes.
• Query logs, run tests, inspect console variables, and summarize editor state.
• Coordinate Sequencer, animation, audio, PCG, landscape, foliage, and level design tasks from natural-language prompts.

Safety and Privacy

Unreal Engine MCP Server can modify real project state through the editor. Keep the bridge scoped to local trusted clients, use token authentication when available, and require explicit approval before destructive operations, automation scripts, console commands, build actions, level saves, imports, or exports.

Treat project paths, asset names, screenshots, logs, Blueprint graphs, generated reports, metrics, and MCP transcripts as sensitive production data. Test new automation flows against disposable projects before connecting Claude to production game content.