How do I install Openclaw Unreal Plugin?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Openclaw Unreal Plugin need an API key?

No required environment variable is listed on this record.

What transport does Openclaw Unreal Plugin use?

Openclaw Unreal Plugin runs locally over stdio.

When was Openclaw Unreal Plugin last checked?

Last checked 2026-10-27. 36 MCP tools to drive the Unreal Editor from any MCP-compatible AI agent — levels, actors, components, assets, and console. OpenClaw gateway included for remote and chat access.

Serveur MCP Openclaw Unreal Plugin

Alimenter votre agent

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Install from the publisher. Not a PlugMCP endpoint.

Exécuter sur PlugMCP

Host a copy with our keys and logs.

No packaged release in the registry yet. Follow the repository README.

RepositoryPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Exécuter sur PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Lancer

Server facts

Local

Transport: stdio
License: Apache-2.0
Last checked: 2026-10-27

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

OpenClaw Unreal Plugin

MCP (Model Context Protocol) bridge for Unreal Engine — lets AI agents control the Unreal Editor in real time.

Version 1.3.0

Features

36 MCP tools for level, actor, transform, component, editor, debug, input, asset, console, and blueprint control
Editor Panel — Window → OpenClaw Unreal Plugin: a dockable tab showing connection status, MCP info, connect/disconnect buttons, and a live log
Real-time control of the Unreal Editor from any MCP-compatible AI agent
Zero config — install the plugin, connect OpenClaw, and go

Installation

Copy the OpenClaw folder into your project's Plugins/ directory
Restart the Unreal Editor
Enable the plugin in Edit → Plugins if not already enabled
Open the panel: Window → OpenClaw Unreal Plugin

Tools (36)

Level

Tool	Description
`level.getCurrent`	Get the current level name
`level.list`	List all levels in the project
`level.open`	Open a level by name
`level.save`	Save the current level

Actor

Tool	Description
`actor.find`	Find actors by name or class
`actor.getAll`	Get all actors in the level
`actor.create`	Create an actor (StaticMeshActor/Cube, Sphere, Cylinder, Cone, PointLight, Camera)
`actor.delete`	Delete an actor by name
`actor.getData`	Get detailed actor data
`actor.setProperty`	Set actor properties via UE reflection system

Transform

Tool	Description
`transform.getPosition`	Get actor position
`transform.setPosition`	Set actor position
`transform.getRotation`	Get actor rotation
`transform.setRotation`	Set actor rotation
`transform.getScale`	Get actor scale
`transform.setScale`	Set actor scale

Component

Tool	Description
`component.get`	Get component data from an actor
`component.add`	Add a component to an actor
`component.remove`	Remove a component from an actor

Editor

Tool	Description
`editor.play`	Start Play-In-Editor (uses RequestPlaySession)
`editor.stop`	Stop Play-In-Editor
`editor.pause`	Pause Play-In-Editor
`editor.resume`	Resume Play-In-Editor
`editor.getState`	Get current editor state

Debug

Tool	Description
`debug.hierarchy`	Get the actor hierarchy tree
`debug.screenshot`	Take an editor screenshot
`debug.log`	Write to the output log

Input

Tool	Description
`input.simulateKey`	Simulate a key press
`input.simulateMouse`	Simulate mouse input
`input.simulateAxis`	Simulate axis input

Asset

Tool	Description
`asset.list`	List assets in a path
`asset.import`	Import an external asset

Console

Tool	Description
`console.execute`	Execute a console command
`console.getLogs`	Read project log file (supports `count` and `filter` params)

Blueprint

Tool	Description
`blueprint.list`	List blueprints in the project
`blueprint.open`	Open a blueprint in the editor

Connection Modes

Mode A: OpenClaw Gateway (Remote Access)

Telegram/Discord/Web → OpenClaw Gateway → HTTP Polling → Unreal Plugin

Works when the Gateway is running and this editor can read the gateway's bridge token (~/.openclaw/unreal-bridge.token). Requires openclaw-unreal-skill 1.2.0+.

Mode B: MCP Direct (Claude Code / Cursor)

Claude Code / Cursor → MCP Server (stdio) → HTTP → Unreal Plugin (port 27184)

The plugin runs an embedded HTTP server on port 27184, authenticated with a per-launch token (see Bridge authentication). Use the included MCP bridge, which reads the token file for you:

Claude Code:

claude mcp add unreal -- node /path/to/Plugins/OpenClaw/MCP~/index.js

Cursor: Add to .cursor/mcp.json:

{
  "mcpServers": {
    "unreal": {
      "command": "node",
      "args": ["/path/to/Plugins/OpenClaw/MCP~/index.js"]
    }
  }
}

Both modes run simultaneously — you can use Gateway and MCP Direct at the same time.

Editor Panel

Access via Window → OpenClaw Unreal Plugin. The dockable panel provides:

Status indicator — connection state at a glance
MCP info — server address and protocol details
Connect / Disconnect buttons
Live log — scrollable log of MCP messages and tool calls

Troubleshooting

Plugin not loading or stale binaries

If the plugin fails to load, shows outdated behavior, or you get linker errors after updating, clear the build cache:

rm -rf YourProject/Plugins/OpenClaw/Binaries YourProject/Plugins/OpenClaw/Intermediate

Then restart the Unreal Editor — it will recompile the plugin from source.

Connection issues

Make sure OpenClaw Gateway is running (openclaw gateway status)
Check the Editor Panel log for error messages
Verify firewall isn't blocking the MCP port

🎭 AI Personas for Game Development

Want your AI agent to have a consistent personality while developing your game? ClawSouls provides open-source persona packages (Soul Spec) that work with OpenClaw and other AI frameworks. Give your coding assistant a specialized game dev personality, or create custom NPC behavior profiles.

Browse community souls: clawsouls.ai
Soul Spec standard: soulspec.org
Quick start: npx clawsouls init my-game-dev --spec 0.4

License

Bridge authentication (v1.4.0)

Both local bridges are authenticated with a per-launch secret. Neither accepts an anonymous caller any more.

MCP Direct — this plugin is the server

When the embedded server starts it generates a per-launch token and writes it to ~/.openclaw/unreal-mcp-bridge.token with mode 0600. The bundled MCP~/index.js reads that file and sends it as X-OpenClaw-Token on every request; anything else gets 401. Requests carrying Origin or Referer get 403 (local MCP clients never send them; a web page probing the port does), and so do non-loopback peers on engine versions that report the peer address — GET /status says which, as peerCheck: "loopback-only" | "unavailable". The mandatory token is the control that does not depend on the engine version.

In v1.3.1 the token was optional (OPENCLAW_BRIDGE_TOKEN unset meant no auth), so an unconfigured install accepted commands from any local process. That is what changed.

Gateway — this plugin is the client

When the OpenClaw gateway loads the Unreal extension it writes a token to ~/.openclaw/unreal-bridge.token (mode 0600). This plugin reads it and sends it as X-OpenClaw-Bridge-Token on POST /unreal/register; the gateway answers with a per-session token that every later request carries as X-OpenClaw-Session. Every queued command has a nonce, and this plugin echoes it with the result, so no other local process can answer in the editor's place. Needs openclaw-unreal-skill 1.2.0 on the gateway side.

Variables

Variable	Effect
`OPENCLAW_CONFIG_DIR` / `OPENCLAW_HOME`	Where both token files live (default `~/.openclaw`)
`OPENCLAW_BRIDGE_TOKEN`	Use this token instead of the files, on both sides
`OPENCLAW_UNREAL_ALLOW_LEGACY_UNAUTHENTICATED=1`	Restore the pre-1.4.0 unauthenticated MCP Direct server. Off by default; the output log and the OpenClaw panel say so loudly while it is on.

Tokens are never written to the output log — only the token file's path is. The 0600 file keeps other users out; a process running as you can read it, which is the same boundary that protects your SSH keys. On Windows the file relies on the user profile ACL, since chmod does not apply.

Ajouter ce serveur

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Openclaw Unreal Plugin?

Does Openclaw Unreal Plugin need an API key?

What transport does Openclaw Unreal Plugin use?

When was Openclaw Unreal Plugin last checked?

Documentation

OpenClaw Unreal Plugin

Features

Installation

Tools (36)

Level

Actor

Transform

Component

Editor

Debug

Input

Asset

Console

Blueprint

Connection Modes

Mode A: OpenClaw Gateway (Remote Access)

Mode B: MCP Direct (Claude Code / Cursor)

Editor Panel

Troubleshooting

Plugin not loading or stale binaries

Connection issues

🎭 AI Personas for Game Development

License

Bridge authentication (v1.4.0)

MCP Direct — this plugin is the server

Gateway — this plugin is the client

Variables