Unreal_mcp MCP — 사용 사례, 설치 & 라이브 데모

왜 쓰나요

핵심 기능

36 tools covering the main editor surface areas
Native C++ Automation Bridge — not a scripting hack
Supports UE 5.0 through 5.7, Windows/macOS/Linux
Optional GraphQL endpoint for custom clients

라이브 데모

실제 사용 모습

unreal.replay ▶ 준비됨

0/0

설치

클라이언트 선택

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "unreal": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ChiR24/Unreal_mcp"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop → Settings → Developer → Edit Config 열기. 저장 후 앱 재시작.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "unreal": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ChiR24/Unreal_mcp"
      ],
      "_inferred": true
    }
  }
}

Cursor는 Claude Desktop과 동일한 mcpServers 스키마 사용. 프로젝트 설정이 전역보다 우선.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "unreal": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ChiR24/Unreal_mcp"
      ],
      "_inferred": true
    }
  }
}

Cline 사이드바의 MCP Servers 아이콘 클릭 후 "Edit Configuration" 선택.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "unreal": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ChiR24/Unreal_mcp"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop과 같은 형식. Windsurf 재시작 후 적용.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "unreal",
      "command": "TODO",
      "args": [
        "See README: https://github.com/ChiR24/Unreal_mcp"
      ]
    }
  ]
}

Continue는 맵이 아닌 서버 오브젝트 배열 사용.

~/.config/zed/settings.json

{
  "context_servers": {
    "unreal": {
      "command": {
        "path": "TODO",
        "args": [
          "See README: https://github.com/ChiR24/Unreal_mcp"
        ]
      }
    }
  }
}

context_servers에 추가. 저장 시 Zed가 핫 리로드.

claude mcp add unreal -- TODO 'See README: https://github.com/ChiR24/Unreal_mcp'

한 줄 명령. claude mcp list로 확인, claude mcp remove로 제거.

사용 사례

실전 활용법: Unreal_mcp

How to prototype an Unreal level from natural language

👤 Indie devs, level designers iterating fast ⏱ ~20 min intermediate

언제 쓸까: You want to rough-in a scene without clicking through content browser menus.

사전 조건

Unreal Engine 5.x project with McpAutomationBridge plugin enabled — Copy plugins/McpAutomationBridge into your project's Plugins folder, restart editor
UE_PROJECT_PATH env var — Absolute path to your .uproject file

흐름

Spawn the basics

Create a new empty level 'Prototype_01'. Spawn a ThirdPersonCharacter at origin, a DirectionalLight at 30° pitch, and a floor plane.✓ 복사됨

→ Level saved with the three actors
Populate props

Scatter 20 instances of StaticMesh_Tree in a 50m radius. Add SkySphere with a sunset preset.✓ 복사됨

→ Visible trees + sunset atmosphere
Enter PIE to playtest

Start Play In Editor and capture a screenshot after 3 seconds.✓ 복사됨

→ Screenshot showing the running scene

결과: A playable whitebox scene in under 10 minutes.

함정

Plugin version mismatch with UE version — Rebuild the plugin against your exact UE version; check UBT output
Port 8091 already in use — Set MCP_AUTOMATION_PORT to a free port in both env and plugin settings

함께 쓰기: filesystem

Edit Unreal Blueprint graphs from Claude conversationally

👤 Gameplay programmers ⏱ ~15 min advanced

언제 쓸까: You need to add a simple node or variable without breaking flow from coding.

흐름

Identify the target BP

List all Blueprints under /Game/Characters. Return paths.✓ 복사됨

→ List
Add a node

In BP_PlayerCharacter, add a PrintString node connected to BeginPlay, text 'Hello from MCP'.✓ 복사됨

→ BP recompiles cleanly; PIE shows the text

결과: Small BP changes without alt-tabbing.

함정

BP compile errors silently fail — Always ask for the compile log after an edit

Automate Unreal marketing screenshots across camera angles

👤 Marketing, community managers ⏱ ~15 min intermediate

언제 쓸까: You need 10 beauty shots of your game for a trailer or press kit.

흐름

Define camera positions

Given these 10 transforms [list], move the editor camera to each and capture a 4K screenshot.✓ 복사됨

→ 10 PNGs in ./Saved/Screenshots
Batch rename

Rename them to <level>_<angle>_<timestamp>.png✓ 복사됨

→ Clean filenames

결과: Press-kit-ready screenshots in minutes.

함께 쓰기: filesystem

조합

다른 MCP와 조합해 10배 효율

unreal + filesystem

Store procedurally generated level definitions as JSON, rebuild levels from them

Read ./levels/forest.json, create a new UE level and spawn the actors described.✓ 복사됨

unreal + claude-talk-to-figma

HUD mockups in Figma → Widget Blueprint in UE

Export the selected HUD frame from Figma; recreate the layout in a UMG Widget Blueprint in my UE project.✓ 복사됨

도구

이 MCP가 노출하는 것

도구	입력	언제 호출
manage_asset	action: import\|duplicate\|delete\|rename, path, params	Asset CRUD
control_actor	action: spawn\|destroy\|move\|set_prop, class, transform	Scene composition
control_editor	action: pie_start\|pie_stop\|screenshot\|set_camera	Editor-level ops
manage_level	action: new\|save\|load\|stream, name	Level lifecycle
manage_blueprint	action: create\|add_node\|compile, bp_path	BP editing
manage_sequence	action: create\|add_track\|play, sequence	Cinematics
system_control	action: console\|build\|test, args	Project-level automation

비용 및 제한

운영 비용

API 쿼터: None — local
호출당 토큰: 100–2000 per tool
금액: Free; requires Unreal Engine (also free up to thresholds)
팁: Batch operations inside a single transaction — single undo entry and faster

보안

권한, 시크릿, 파급범위

자격 증명 저장: None

데이터 외부 송신: Localhost only (MCP_AUTOMATION_PORT)

문제 해결

자주 발생하는 오류와 해결

Plugin not found / editor crashes on load

Rebuild against current UE version: right-click .uproject → Generate Project Files → rebuild in IDE

확인: Plugin shows as 'Enabled' in Edit → Plugins

Automation port refused

Ensure UE editor is running and the plugin has started its listener (check Output Log for 'MCP bridge listening')

확인: telnet 127.0.0.1 8091

Asset import fails silently

Check UE's Message Log — many errors surface there but not to MCP

대안

Unreal_mcp 다른 것과 비교

대안	언제 쓰나	단점/장점
UE Python scripting	You want direct Python control and don't need an agent layer	No MCP, no LLM-friendly surface
Blender MCP	You're in Blender not Unreal	Different engine entirely

Unreal_mcp