io.github.ChiR24/unreal-engine-mcp

io.github.ChiR24/unreal-engine-mcpv0.5.30Other

MCP server for Unreal Engine 5 with 23 tools for game development automation.

In-path gate · all MCP tools

Using io.github.ChiR24/unreal-engine-mcp in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-08-28 01:32 UTC

screened 2026-07-29tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“No malicious intent”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-07-31).

Contracts can change after screening, with no version bump. The gate pins io.github.ChiR24/unreal-engine-mcp’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Embed this badge

A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-chir24-unreal-engine-mcp)](https://mcpindex.ai/server/io-github-chir24-unreal-engine-mcp)

HTML

<a href="https://mcpindex.ai/server/io-github-chir24-unreal-engine-mcp"><img src="https://mcpindex.ai/api/v1/badge/io-github-chir24-unreal-engine-mcp" alt="mcpindex verdict" height="20" /></a>

Environment variables

LOG_LEVEL

Logging level: debug, info, warn, error (default: info)

MCP_ROUTE_STDOUT_LOGS

Route standard output to standard error to avoid protocol corruption (default: true)

UE_PROJECT_PATH

Absolute path to your Unreal .uproject file

UE_EDITOR_EXE

Path to UnrealEditor-Cmd.exe (optional)

UE_SCREENSHOT_DIR

Directory to save screenshots (optional)

MCP_AUTOMATION_PORT

Automation bridge WebSocket port (default: 8091)

MCP_AUTOMATION_HOST

Automation bridge WebSocket host (default: 127.0.0.1). Set to 0.0.0.0 for LAN access (requires MCP_AUTOMATION_ALLOW_NON_LOOPBACK=true)

MCP_AUTOMATION_ALLOW_NON_LOOPBACK

SECURITY: Allow binding to non-loopback addresses (e.g., 0.0.0.0) for LAN access. Only enable if you understand the security implications. (default: false)

MCP_AUTOMATION_CLIENT_MODE

Run as client connecting to UE (false) or server listening for UE (true) (default: false)

MCP_AUTOMATION_USE_TLS

Use wss:// for the automation bridge client connection (default: false)

MCP_CONNECTION_TIMEOUT_MS

Connection timeout in milliseconds (default: 5000)

MCP_REQUEST_TIMEOUT_MS

Request timeout in milliseconds (default: 30000)

MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE

Max inbound automation bridge messages per minute before disconnect (default: 600)

MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE

Max inbound automation request messages per minute before disconnect (default: 120)

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

Alternatives in Other

Labby

ai.dinglebear/labby

Local-first MCP gateway and homelab control plane with CLI, HTTP API, and web UI.

Yarr MCP

ai.dinglebear/yarr-mcp

Rust MCP and CLI server for Sonarr, Radarr, Prowlarr, Plex, Jellyfin, and download clients.

io.github.Christebob/meta-stamp-pockets

Attribution and settlement infrastructure for AI agent content access over HTTP 402 and MCP.

Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "unreal-engine-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "unreal-engine-mcp-server"
      ],
      "env": {
        "LOG_LEVEL": "<log_level>",
        "MCP_ROUTE_STDOUT_LOGS": "<mcp_route_stdout_logs>",
        "UE_PROJECT_PATH": "<ue_project_path>",
        "UE_EDITOR_EXE": "<ue_editor_exe>",
        "UE_SCREENSHOT_DIR": "<ue_screenshot_dir>",
        "MCP_AUTOMATION_PORT": "<mcp_automation_port>",
        "MCP_AUTOMATION_HOST": "<mcp_automation_host>",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "<mcp_automation_allow_non_loopback>",
        "MCP_AUTOMATION_CLIENT_MODE": "<mcp_automation_client_mode>",
        "MCP_AUTOMATION_USE_TLS": "<mcp_automation_use_tls>",
        "MCP_CONNECTION_TIMEOUT_MS": "<mcp_connection_timeout_ms>",
        "MCP_REQUEST_TIMEOUT_MS": "<mcp_request_timeout_ms>",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "<mcp_automation_max_messages_per_minute>",
        "MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE": "<mcp_automation_max_automation_requests_per_minute>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "unreal-engine-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "unreal-engine-mcp-server"
      ],
      "env": {
        "LOG_LEVEL": "<log_level>",
        "MCP_ROUTE_STDOUT_LOGS": "<mcp_route_stdout_logs>",
        "UE_PROJECT_PATH": "<ue_project_path>",
        "UE_EDITOR_EXE": "<ue_editor_exe>",
        "UE_SCREENSHOT_DIR": "<ue_screenshot_dir>",
        "MCP_AUTOMATION_PORT": "<mcp_automation_port>",
        "MCP_AUTOMATION_HOST": "<mcp_automation_host>",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "<mcp_automation_allow_non_loopback>",
        "MCP_AUTOMATION_CLIENT_MODE": "<mcp_automation_client_mode>",
        "MCP_AUTOMATION_USE_TLS": "<mcp_automation_use_tls>",
        "MCP_CONNECTION_TIMEOUT_MS": "<mcp_connection_timeout_ms>",
        "MCP_REQUEST_TIMEOUT_MS": "<mcp_request_timeout_ms>",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "<mcp_automation_max_messages_per_minute>",
        "MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE": "<mcp_automation_max_automation_requests_per_minute>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- unreal-engine-mcp-server

Claude Code (claude mcp add)

claude mcp add --scope user unreal-engine-mcp -- npx -y -- unreal-engine-mcp-server

Gemini CLI (gemini mcp add)

gemini mcp add -s user unreal-engine-mcp npx -y -- unreal-engine-mcp-server

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-chir24-unreal-engine-mcp

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.5.30
category: Other
verdict expires: 2026-08-28
quality: 78 / 100
operator: ChiR24

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 960,209). Verify it yourself.

Links

Repository →