Which integrations are available for this server?

Enables AI agents to interact with Unreal Engine 5.7, providing capabilities to manipulate actors, query scene hierarchies, manage materials and assets, execute editor commands, and perform viewport perception through screenshots and metadata.

How do I use UnrealEngine Bridge?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@UnrealEngine Bridge find the actor named 'Cube' and change its material to 'M_Brick_Red'" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

UnrealEngine Bridge

An agentic AI bridge connecting Claude Code to Unreal Engine 5.7. Claude can perceive, reason about, and manipulate UE5 scenes through MCP tools, a file-based bridge protocol, and the Remote Control API.

Forked from TranslatorsGame/ue-bridge. This version focuses on expanding agentic capabilities.

What's Included

Component	Description
UEBridge plugin	Drop-in UE5 plugin with Runtime + Editor modules
ViewportPerception plugin	Viewport capture with metadata for AI perception
MCP server	11 tool modules (39 tools) for Claude Code integration
Bridge orchestrator	Python game flow with USD-native file I/O
Behavioral tracking	Response time, hesitation, burnout detection

Quick Start

1. UE5 Setup

Open UnrealEngine_Bridge.uproject in UE 5.7
Go to Edit > Plugins, search "UE Bridge", enable it
Restart the editor
Verify Remote Control is active on localhost:30010

2. Python Setup

pip install -e ".[dev]"
python bridge_orchestrator.py

3. MCP Integration

Add to your Claude Code MCP config:

{
  "mcpServers": {
    "ue-bridge": {
      "command": "python",
      "args": ["-m", "ue_mcp.mcp_server"],
      "cwd": "C:/Users/User/UnrealEngine_Bridge"
    }
  }
}

MCP Tools (39)

Actors (6)

Tool	Purpose
`ue_spawn_actor`	Create actors in the level
`ue_delete_actor`	Remove actors
`ue_list_actors`	Query all actors
`ue_set_transform`	Position/rotate/scale actors
`ue_duplicate_actor`	Duplicate an actor with offset
`ue_get_actor_bounds`	Get axis-aligned bounding box

Scene Understanding (4)

Tool	Purpose
`ue_get_actor_details`	Full actor info: class, transform, components, tags, parent
`ue_query_scene`	Filtered queries with class, tag, name, and spatial search
`ue_get_component_details`	Deep component inspection (mesh, materials, lights)
`ue_get_actor_hierarchy`	Parent-child attachment tree (max depth 10)

Materials (4)

Tool	Purpose
`ue_create_material_instance`	Create MaterialInstanceConstant from parent
`ue_set_material_parameter`	Set scalar/vector/texture parameters
`ue_get_material_parameters`	List all exposed parameters with values
`ue_assign_material`	Apply material to actor mesh component

Editor Utilities (5)

Tool	Purpose
`ue_console_command`	Execute console commands (with safety blocklist)
`ue_undo` / `ue_redo`	Undo/redo editor actions
`ue_focus_actor`	Focus viewport on actor
`ue_select_actors`	Set editor selection by label

Properties (2)

Tool	Purpose
`ue_get_property`	Read UObject properties
`ue_set_property`	Write UObject properties

Assets (3)

Tool	Purpose
`ue_find_assets`	Search Content Browser
`ue_create_material`	Create material with wired BaseColor/Roughness/Metallic nodes
`ue_delete_asset`	Delete asset from Content Browser

Level (4)

Tool	Purpose
`ue_save_level`	Save current level
`ue_get_level_info`	Level name and actor count
`ue_load_level`	Load a level by content path
`ue_get_world_info`	Streaming levels, world settings, game mode

Blueprints (7)

Tool	Purpose
`ue_create_blueprint`	Create Blueprint asset
`ue_add_component`	Add component to live actor
`ue_set_component_property`	Set property on actor component
`ue_set_blueprint_defaults`	Set CDO default values
`ue_compile_blueprint`	Compile and save Blueprint
`ue_get_actor_components`	List components on actor
`ue_spawn_blueprint`	Spawn Blueprint instance

Motion Graphics (3)

Tool	Purpose
`ue_create_cloner`	ClonerEffector instancing
`ue_create_niagara_system`	Niagara particle system
`ue_create_pcg_graph`	PCG procedural volume

Perception (1+)

Tool	Purpose
`ue_viewport_percept`	Viewport screenshot + metadata

Architecture

Claude Code (MCP client)
    |
    v
MCP Server (stdio) -- ue_mcp/mcp_server.py
    |
    v
HTTP (localhost:30010)
    |
    v
UE5 Remote Control API
    |
    v
UE5 Editor

File-Based Bridge

For game flow (questions/answers), a file-based protocol uses ~/.translators/:

bridge_state.usda -- USD VariantSets as state machine
state.json / answer.json -- JSON fallback
cognitive_profile.usda -- Generated profile
heartbeat.json -- Liveness (5s interval)

The UUEBridgeSubsystem polls at 10Hz with adaptive backoff.

Project Structure

Plugins/
├── UEBridge/
│   └── Source/
│       ├── UEBridgeRuntime/           # Subsystem, types, UI widgets, style
│       └── UEBridgeEditor/            # File watching, process management
└── ViewportPerception/                # AI perception layer

Source/UnrealEngineBridge/             # Game module
├── BridgeComponent.*                  # Legacy BP relay
└── UI/                                # Slate widgets

ue_mcp/                                # MCP server
├── mcp_server.py                      # Entry point
├── remote_control_bridge.py           # UE5 HTTP wrapper
└── tools/                             # Tool modules (11, 39 tools)

bridge_orchestrator.py                 # Game flow orchestration
usd_bridge.py                          # USD I/O + profile generation
tests/                                 # pytest suite

License

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UnrealEngine Bridge

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What's Included

Quick Start

1. UE5 Setup

2. Python Setup

3. MCP Integration

MCP Tools (39)

Actors (6)

Scene Understanding (4)

Materials (4)

Editor Utilities (5)

Properties (2)

Assets (3)

Level (4)

Blueprints (7)

Motion Graphics (3)

Perception (1+)

Architecture

File-Based Bridge

Project Structure

License

Resources

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