UnrealMCPBridge: An Unreal Engine plugin that implements an MCP server allowing MCP clients to access the UE Editor Python API

by appleweed · MCP Server · ★ 65

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Featured in: Blender, Unity & Godot MCP

Security audit verdict: SAFE · quality 66/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

Quick Facts

Stars65
Forks16
LanguageC++
CategoryMCP Server
LicenseMIT
Quality Score66/100
Open Issues2
Last Updated2026-05-12
Created2025-04-07
Platformscli, mcp
Est. Tokens~111k

About UnrealMCPBridge

Unreal Engine MCP Python Bridge Plugin This is a plugin for Unreal Engine (UE) that creates a server implementation of Model Context Protocol (MCP). This allows MCP clients, like Anthropic's Claude, to access the full UE Python API. Use Cases Developing tools and workflows in Python with an agent like Claude. Intelligent and dynamic automation of such workflows.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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