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unreal-engine-mcp

L0· runs locally

EngineWire: drive the Unreal Editor (UE 5.0-5.8): levels, Blueprints, UI, materials, VFX and more.

v0.6.0-beta-f · active · repository · descriptor JSON · versions

Runs on your machine: something must execute the package.Only local packages are published (npm, PyPI, OCI, …). The registry never executes them, so tools are unknown until you run it.
Quality–not scored
Trust86of 100
Packages1
Tools seen0

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "unreal-engine-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "UE_PROJECT_PATH": "${UE_PROJECT_PATH}",
        "MCP_AUTOMATION_CAPABILITY_TOKEN": "${MCP_AUTOMATION_CAPABILITY_TOKEN}",
        "MCP_AUTOMATION_HOST": "127.0.0.1",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "false",
        "MCP_AUTOMATION_USE_TLS": "false",
        "MCP_CONNECTION_TIMEOUT_MS": "5000",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "600",
        "LOG_LEVEL": "info"
      }
    }
  }
}
claude mcp add unreal-engine-mcp -e "UE_PROJECT_PATH=${UE_PROJECT_PATH}" -e "MCP_AUTOMATION_CAPABILITY_TOKEN=${MCP_AUTOMATION_CAPABILITY_TOKEN}" -e "MCP_AUTOMATION_HOST=127.0.0.1" -e "MCP_AUTOMATION_ALLOW_NON_LOOPBACK=false" -e "MCP_AUTOMATION_USE_TLS=false" -e "MCP_CONNECTION_TIMEOUT_MS=5000" -e "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE=600" -e "LOG_LEVEL=info" -- npx -y [email protected]
[mcp_servers.unreal-engine-mcp]
command = "npx"
args = ["-y", "[email protected]"]
env = { "UE_PROJECT_PATH" = "${UE_PROJECT_PATH}", "MCP_AUTOMATION_CAPABILITY_TOKEN" = "${MCP_AUTOMATION_CAPABILITY_TOKEN}", "MCP_AUTOMATION_HOST" = "127.0.0.1", "MCP_AUTOMATION_ALLOW_NON_LOOPBACK" = "false", "MCP_AUTOMATION_USE_TLS" = "false", "MCP_CONNECTION_TIMEOUT_MS" = "5000", "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE" = "600", "LOG_LEVEL" = "info" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "unreal-engine-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "[email protected]"
      ],
      "enabled": true,
      "environment": {
        "UE_PROJECT_PATH": "{env:UE_PROJECT_PATH}",
        "MCP_AUTOMATION_CAPABILITY_TOKEN": "{env:MCP_AUTOMATION_CAPABILITY_TOKEN}",
        "MCP_AUTOMATION_HOST": "127.0.0.1",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "false",
        "MCP_AUTOMATION_USE_TLS": "false",
        "MCP_CONNECTION_TIMEOUT_MS": "5000",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "600",
        "LOG_LEVEL": "info"
      }
    }
  }
}
{
  "mcpServers": {
    "unreal-engine-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "UE_PROJECT_PATH": "${UE_PROJECT_PATH}",
        "MCP_AUTOMATION_CAPABILITY_TOKEN": "${MCP_AUTOMATION_CAPABILITY_TOKEN}",
        "MCP_AUTOMATION_HOST": "127.0.0.1",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "false",
        "MCP_AUTOMATION_USE_TLS": "false",
        "MCP_CONNECTION_TIMEOUT_MS": "5000",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "600",
        "LOG_LEVEL": "info"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=unreal-engine-mcp&config=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%3D"
}
{
  "servers": {
    "unreal-engine-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "UE_PROJECT_PATH": "${UE_PROJECT_PATH}",
        "MCP_AUTOMATION_CAPABILITY_TOKEN": "${MCP_AUTOMATION_CAPABILITY_TOKEN}",
        "MCP_AUTOMATION_HOST": "127.0.0.1",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "false",
        "MCP_AUTOMATION_USE_TLS": "false",
        "MCP_CONNECTION_TIMEOUT_MS": "5000",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "600",
        "LOG_LEVEL": "info"
      }
    }
  }
}
{
  "mcpServers": {
    "unreal-engine-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "UE_PROJECT_PATH": "${UE_PROJECT_PATH}",
        "MCP_AUTOMATION_CAPABILITY_TOKEN": "${MCP_AUTOMATION_CAPABILITY_TOKEN}",
        "MCP_AUTOMATION_HOST": "127.0.0.1",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "false",
        "MCP_AUTOMATION_USE_TLS": "false",
        "MCP_CONNECTION_TIMEOUT_MS": "5000",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "600",
        "LOG_LEVEL": "info"
      }
    }
  }
}
extensions:
  "unreal-engine-mcp":
    enabled: true
    name: "unreal-engine-mcp"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "[email protected]"
    envs:
      "UE_PROJECT_PATH": "${UE_PROJECT_PATH}"
      "MCP_AUTOMATION_CAPABILITY_TOKEN": "${MCP_AUTOMATION_CAPABILITY_TOKEN}"
      "MCP_AUTOMATION_HOST": "127.0.0.1"
      "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "false"
      "MCP_AUTOMATION_USE_TLS": "false"
      "MCP_CONNECTION_TIMEOUT_MS": "5000"
      "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "600"
      "LOG_LEVEL": "info"
    timeout: 300

Placeholders to fill from your own secret store: ${MCP_AUTOMATION_CAPABILITY_TOKEN}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25
  • n/a
    protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygienen/a · weight 30
  • n/a
    tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool list unknown
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvabledeps.dev does not know [email protected]

Tool list unknown · checked 2026-10-20 11:40 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 86 / 100

duplicate-repo
provenance80
livenessn/a
freshness100
hygiene80

+repository +namespace-matches-repo ~liveness-unmeasured +updated-4d-ago -duplicate-repo(3 names)

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] npmthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

packageregistryversionruntimesecrets
unreal-engine-mcp-servernpm0.6.0-beta-f–MCP_AUTOMATION_CAPABILITY_TOKEN

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Also listed as

2 other active names share this repository: ai.smithery/ChiR24-unreal_mcp, ai.smithery/ChiR24-unreal_mcp_server

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Official server.json
{
  "name": "io.github.ChiR24/unreal-engine-mcp",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.6.0-beta-f",
  "packages": [
    {
      "version": "0.6.0-beta-f",
      "transport": {
        "type": "stdio"
      },
      "identifier": "unreal-engine-mcp-server",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "UE_PROJECT_PATH",
          "format": "filepath",
          "isRequired": true,
          "description": "Your Unreal project folder or its .uproject file. The server reads the capability token from <project>/Saved/MCP/capability-token and the WebSocket port from the project settings.",
          "placeholder": "C:/Users/YourName/Documents/Unreal Projects/MyGame"
        },
        {
          "name": "MCP_AUTOMATION_CAPABILITY_TOKEN",
          "isSecret": true,
          "description": "Capability token to present to the editor. Only needed when the server cannot read the project folder, for example over LAN."
        },
        {
          "name": "MCP_AUTOMATION_PORT",
          "format": "number",
          "description": "Editor WebSocket port. Default: the first Listen Ports entry in the project settings, else 8090.",
          "placeholder": "8090"
        },
        {
          "name": "MCP_AUTOMATION_HOST",
          "default": "127.0.0.1",
          "description": "Editor host to connect to. A LAN address also needs MCP_AUTOMATION_ALLOW_NON_LOOPBACK=true and Allow Non Loopback in the plugin settings."
        },
        {
          "name": "MCP_AUTOMATION_ALLOW_NON_LOOPBACK",
          "format": "boolean",
          "default": "false",
          "description": "SECURITY: allow a non-loopback MCP_AUTOMATION_HOST. Enable only on a trusted network."
        },
        {
          "name": "MCP_AUTOMATION_USE_TLS",
          "format": "boolean",
          "default": "false",
          "description": "Connect with wss:// instead of ws://."
        },
        {
          "name": "MCP_ADDITIONAL_PATH_PREFIXES",
          "description": "Extra content roots to allow besides /Game, /Engine, /Script, /Temp and /Niagara, comma-separated. Example: /MyPluginContent/"
        },
        {
          "name": "MCP_CONNECTION_TIMEOUT_MS",
          "format": "number",
          "default": "5000",
          "description": "How long to wait for the editor connection, in milliseconds."
        },
        {
          "name": "MCP_REQUEST_TIMEOUT_MS",
          "format": "number",
          "description": "Overrides every per-capability request timeout, in milliseconds. Leave unset: each capability gets a budget that fits its cost."
        },
        {
          "name": "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE",
          "format": "number",
          "default": "600",
          "description": "Inbound messages per minute from the editor before the server disconnects."
        },
        {
          "name": "LOG_LEVEL",
          "choices": [
            "debug",
            "info",
            "warn",
            "error"
          ],
          "default": "info",
          "description": "Log level. Logs go to stderr."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/ChiR24/Unreal_mcp.git",
    "source": "github"
  },
  "description": "EngineWire: drive the Unreal Editor (UE 5.0-5.8): levels, Blueprints, UI, materials, VFX and more."
}