About dev.breadpack.UnityMcpBridge
dev.breadpack.UnityMcpBridge is an MCP server in the Gaming category: mCP (Model Context Protocol) Bridge for Unity Editor — connect AI agents to Unity Editor.
Install
git clone https://github.com/breadpack/UnityMcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (17)
unity_addressable_addAdd asset to Addressable group (requires package)
Parameters not published.
unity_addressable_set_addressSet Addressable asset address (requires package)
Parameters not published.
unity_get_asset_hierarchyInspect Prefab/Scene hierarchy without opening
Parameters not published.
unity_get_available_actionsList clickable UI actions (Play Mode)
Parameters not published.
unity_get_component_detailsGet component property details
Parameters not published.
unity_get_console_logsGet console log entries
Parameters not published.
unity_get_hierarchyGet scene hierarchy
Parameters not published.
unity_get_screenGet current screen info (Play Mode)
Parameters not published.
unity_get_ugui_treeGet UGUI Canvas hierarchy
Parameters not published.
unity_get_ui_treeGet UI Toolkit visual tree (Play Mode)
Parameters not published.
Show all 17 tools
unity_pingCheck Unity Editor connection
Parameters not published.
unity_refresh_assetsRefresh AssetDatabase
Parameters not published.
unity_render_prefab_previewRender a prefab to a high-quality preview image in isolation (no Play Mode)
Parameters not published.
unity_render_uxmlRender UXML to image
Parameters not published.
unity_set_autotick비포커스 Editor 강제 tick (EditorApplication.SignalTick) — 컴파일·리로드 후 재연결이 멈추지 않게 함
Parameters not published.
unity_take_scene_view_screenshotCapture Scene View screenshot (no Play Mode)
Parameters not published.
unity_take_screenshotCapture game view screenshot (Play Mode)
Parameters not published.
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README
Unity MCP
Unity MCP (Model Context Protocol) Bridge — Connect AI agents to Unity Editor.
Architecture
AI Agent (Claude, Cursor, etc.)
↕ stdio (MCP protocol)
UnityMcpBridge (.NET)
↕ TCP (binary protocol)
Unity Editor (UnityMcpEditor package)
Two components are required:
| Component | Role | Install method |
|---|---|---|
| UnityMcpBridge | .NET MCP server (stdio ↔ TCP) | npx / dotnet tool / clone |
| UnityMcpEditor | Unity Editor plugin (TCP server + handlers) | UPM git URL |
Claude Code Plugin 설치 (권장)
Claude Code에서 플러그인으로 설치하면 MCP 서버, Skills, Agents, Hooks가 한 번에 구성됩니다.
Step 1. Unity Editor 패키지 설치
Unity 6000.0+ 필요
Unity Editor > Window > Package Manager > + > Add package from git URL:
https://github.com/breadpack/UnityMcp.git?path=UnityMcpEditor
Step 2. Claude Code에서 플러그인 설치
Claude Code 세션 내에서:
/plugin install --from github:breadpack/UnityMcp
또는 프로젝트 .claude/settings.json에 등록:
{
"enabledPlugins": {
"unity-mcp": {
"source": {
"source": "github",
"repo": "breadpack/UnityMcp"
}
}
}
}
설치 시 아래 옵션을 프롬프트로 설정할 수 있습니다:
| 옵션 | 설명 | 기본 |
|---|---|---|
unity_tcp_port |
Unity TCP 포트 | 9876 |
auto_save_scene |
씬 변경 후 자동 저장 | false |
check_compile_status |
도구 호출 전 컴파일 상태 체크 | true |
check_domain_reload |
도구 호출 전 도메인 리로드 상태 체크 | true |
max_wait_seconds |
컴파일/리로드 대기 최대 시간(초) | 60 |
Step 3. 검증
Unity Editor를 연 상태에서 Claude Code에 다음과 같이 요청:
"Unity에 ping을 보내줘"
포함 구성요소
MCP 서버 (unity-bridge) — 45+ Unity 도구 (씬, 컴포넌트, 에셋, 빌드 등)
Agents 3종 — 특정 도메인 전문 에이전트
| Agent | 역할 |
|---|---|
unity-scene-architect |
씬 설계, GameObject/컴포넌트/UI 구성 |
unity-debugger |
에러 추적, Play Mode 검사, 성능 분석 |
unity-asset-manager |
Material, Prefab, Addressable, 빌드 관리 |
Skills 6종 — 워크플로우 가이드 (슬래시 커맨드)
| Skill | 명령어 |
|---|---|
| Scene Setup | /unity-mcp:unity-scene-setup |
| UI Build | /unity-mcp:unity-ui-build |
| Material Setup | /unity-mcp:unity-material-setup |
| Prefab Workflow | /unity-mcp:unity-prefab-workflow |
| Debug | /unity-mcp:unity-debug |
| Build & Deploy | /unity-mcp:unity-build-deploy |
Hooks — 자동 상태 관리
SessionStart: Unity 연결 상태 체크 및 프로젝트 정보 출력PreToolUse: 도구 호출 전 컴파일/도메인 리로드 감지. 진행 중이면 대기 후 재시도.PostToolUse: 씬 변경 도구 실행 후auto_save_scene=true시 자동 저장.PostToolUseFailure: 도구 실행 실패 시 연결 복구 진단.
사용 예시
> @unity-scene-architect 3D 플랫포머 기본 씬을 만들어줘. 바닥, 플레이어, 카메라.
> @unity-debugger 현재 씬의 에러 원인을 찾아줘.
> /unity-mcp:unity-build-deploy
> Windows 타겟으로 빌드해줘.
수동 설치 (플러그인 없이)
플러그인을 사용하지 않고 개별 도구에서 MCP 서버만 쓰고 싶다면:
Quick Start
Step 1. Install MCP Bridge
No pre-install needed — just configure and go (see Step 3).
Or install globally:
# npx (recommended, no .NET required)
npx -y unity-mcp-bridge
# dotnet tool (requires .NET 9.0+ SDK)
dotnet tool install -g dev.breadpack.UnityMcpBridge
Step 2. Install Unity Editor Package
Requires Unity 6000.0+ (Unity 6)
Open Unity Editor > Window > Package Manager > + > Add package from git URL:
https://github.com/breadpack/UnityMcp.git?path=UnityMcpEditor
Newtonsoft.Json (com.unity.nuget.newtonsoft-json) is auto-resolved as a dependency. No other prerequisites required.
Step 3. Configure your AI tool
Add MCP server configuration to your AI tool:
{
"mcpServers": {
"unity": {
"command": "npx",
"args": ["-y", "unity-mcp-bridge"]
}
}
}
Or via CLI:
claude mcp add unity -- npx -y unity-mcp-bridge
Edit %APPDATA%/Claude/claude_desktop_config.json (Windows) or ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):
{
"mcpServers": {
"unity": {
"command": "npx",
"args": ["-y", "unity-mcp-bridge"]
}
}
}
{
"mcpServers": {
"unity": {
"command": "npx",
"args": ["-y", "unity-mcp-bridge"]
}
}
}
If you installed via dotnet tool install -g, use the command directly:
{
"mcpServers": {
"unity": {
"command": "unity-mcp-bridge"
}
}
}
Step 4. Verify
Open Unity Editor with the package installed, then ask your AI agent:
"Unity에 ping을 보내줘"
Alternative: Clone and Build
If you prefer to build from source:
git clone https://github.com/breadpack/UnityMcp.git
cd UnityMcp/UnityMcpBridge
dotnet run
Configure with:
{
"mcpServers": {
"unity": {
"command": "dotnet",
"args": ["run", "--project", "/path/to/UnityMcp/UnityMcpBridge"]
}
}
}
Requires .NET 9.0+ SDK
Configuration
| Environment Variable | Default | Description |
|---|---|---|
UNITY_TCP_PORT |
9876 |
TCP port to connect to Unity Editor |
Example with custom port:
{
"mcpServers": {
"unity": {
"command": "unity-mcp-bridge",
"env": { "UNITY_TCP_PORT": "9877" }
}
}
}
Available Tools (35)
Observation (14)
| Tool | Description |
|---|---|
unity_ping |
Check Unity Editor connection |
unity_get_hierarchy |
Get scene hierarchy |
unity_get_asset_hierarchy |
Inspect Prefab/Scene hierarchy without opening |
unity_get_component_details |
Get component property details |
unity_get_screen |
Get current screen info (Play Mode) |
unity_get_ui_tree |
Get UI Toolkit visual tree (Play Mode) |
unity_get_ugui_tree |
Get UGUI Canvas hierarchy |
unity_get_console_logs |
Get console log entries |
unity_get_available_actions |
List clickable UI actions (Play Mode) |
unity_take_screenshot |
Capture game view screenshot (Play Mode) |
unity_render_uxml |
Render UXML to image |
unity_refresh_assets |
Refresh AssetDatabase |
unity_addressable_add |
Add asset to Addressable group (requires package) |
unity_addressable_set_address |
Set Addressable asset address (requires package) |
Scene Manipulation (10)
| Tool | Description |
|---|---|
unity_create_gameobject |
Create new GameObject |
unity_delete_gameobject |
Delete GameObject (dryRun supported) |
unity_reparent_gameobject |
Change parent of GameObject |
unity_set_transform |
Set position / rotation / scale |
unity_set_active |
Activate / deactivate GameObject |
unity_select_gameobject |
Select and ping in Editor |
unity_save_scene |
Save current scene |
unity_load_scene |
Open scene (Single / Additive) |
unity_play_mode |
Enter / exit / toggle Play Mode |
unity_instantiate_prefab |
Instantiate prefab in scene |
Component & Property (4)
| Tool | Description |
|---|---|
unity_add_component |
Add component to GameObject |
unity_remove_component |
Remove component (dryRun supported) |
unity_set_property |
Set component property (dot-notation, array, asset ref) |
unity_set_asset_reference |
Set asset reference on component field |
Material (2)
| Tool | Description |
|---|---|
unity_create_material |
Create new Material asset |
unity_set_material_property |
Set material property (color, float, texture, vector) |
Asset Management (1)
| Tool | Description |
|---|---|
unity_manage_asset |
Move / copy / delete asset, create folder |
Prefab (1)
| Tool | Description |
|---|---|
unity_prefab_edit |
Enter / save / exit Prefab edit mode |
Animation (1)
| Tool | Description |
|---|---|
unity_animator_control |
Set Animator parameters, query state (Play Mode) |
Build & Settings (2)
| Tool | Description |
|---|---|
unity_build |
Build player (Windows, macOS, Linux, Android, iOS, WebGL) |
unity_project_settings |
Read / write PlayerSettings, QualitySettings, Physics, Time |
Conditional Features
Addressables Support
To enable Addressable tools, add the scripting define symbol to your Unity project:
- Edit > Project Settings > Player > Scripting Define Symbols
- Add
UNITY_MCP_ADDRESSABLES
Update
npx는 자동으로 최신 버전을 사용합니다. dotnet tool을 사용하는 경우:
dotnet tool update -g dev.breadpack.UnityMcpBridge
License
README copy captured when this server was indexed; it may lag the repository. The original is authoritative.