MCP.Market

Unreal Engine MCP server

by ChiR24·io.github.ChiR24/unreal-engine-mcp·v0.6.0·902 stars
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EngineWire: drive the Unreal Editor (UE 5.0-5.8): levels, Blueprints, UI, materials, VFX and more.

B75/100grade B
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Safety scan
B75/100

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Adoption
Established

902 stars540 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Unreal Engine tools

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How Unreal Engine compares

Against every graded Productivity MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
75/100
higher than 40% of 1,301 Productivity servers
GitHub stars
902
more than 95% of 855 Productivity servers
Downloads a week
540
more than 83% of 433 Productivity servers with a package

Release history: 7 versions in the registry since 2026-06-05, latest 2026-10-27, typically one every 7 days.

Install Unreal Engine in Claude Code, Cursor or VS Code

Runs npx -y unreal-engine-mcp-server on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add unreal-engine-mcp -- npx -y unreal-engine-mcp-server
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What the publisher says

From the Unreal Engine repository's README, as published. We do not edit it. Read it on GitHub

Unreal Engine MCP Server

A comprehensive Model Context Protocol (MCP) server that enables AI assistants to control Unreal Engine through a native C++ Automation Bridge plugin. Built with TypeScript and C++.

Table of Contents

  • Features
  • Getting Started
  • Configuration
  • Available Tools
  • Docker
  • Documentation
  • Community
  • Development
  • Contributing

Features

Architecture

  • Native C++ Automation — All operations route through the MCP Automation Bridge plugin
  • Dual Transport — Native HTTP/SSE (no bridge needed) or WebSocket via TypeScript bridge
  • Dynamic Type Discovery — Runtime introspection for lights, debug shapes, and sequencer tracks
  • Graceful Degradation — Server starts even without an active Unreal connection
  • On-Demand Connection — Retries automation handshakes with exponential backoff
  • Command Safety — Blocks dangerous console commands with pattern-based validation
  • Capability Token Auth — On-by-default token authentication (auto-generated 32-byte secret at /Saved/MCP/capability-token) for both WS and HTTP transports; manual CapabilityToken in Project Settings overrides the file
  • Asset Caching — 10-second TTL for improved performance
  • Metrics Rate Limiting — Per-IP rate limiting (60 req/min) on Prometheus endpoint
  • Centralized Configuration — Unified class aliases and type definitions

Getting Started

Prerequisites

  • Node.js 20.19 or later (Node.js 18 is not supported) — required for the TypeScript stdio bridge. Not needed for the native MCP transport.

Step 1: Install MCP Server (Option B only — skip for Native MCP)

Skip this step if using Option A: Native MCP Transport (Step 4A below).

NPX (Recommended):

npx unreal-engine-mcp-server

Clone & Build:

git clone https://github.com/ChiR24/Unreal_mcp.git
cd Unreal_mcp
npm install
npm run build
node dist/cli.js

Step 2: Install Unreal Plugin

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-10-02downgradeA → Bscore 75: eval / new Function used

Unreal Engine: common questions

Is Unreal Engine MCP server safe?
Mostly: it is graded B (75/100). Read the Unreal Engine safety report
How do I install Unreal Engine?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Unreal Engine need an API key?
Yes. The registry entry asks for MCP_AUTOMATION_CAPABILITY_TOKEN.
Is Unreal Engine maintained?
The last commit was 33 days ago (2026-10-02). The latest release is v0.6.0.
What can I use instead of Unreal Engine?
Servers from other publishers that do the same job: Scumble MCP server, Argent MCP server and gflow-cli MCP server.
How does Unreal Engine compare with other Productivity MCP servers?
safety score 75/100 (higher than 40% of 1,301 Productivity servers); github stars 902 (more than 95% of 855 Productivity servers); downloads a week 540 (more than 83% of 433 Productivity servers with a package). Full comparison.

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