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unreal-mcp-ue4-for-ohd MCP server

by RibatTRW·io.github.RibatTRW/unreal-mcp-ue4-for-ohd·v2026.5.12-12

UE4.25 MCP server for Unreal Editor via Python Remote Execution (OHD mod-kit retarget).

A89/100grade A
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unreal-mcp-ue4-for-ohd tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

no findings
  • Code scan97 source files scanned25/25
  • Live reliabilityno gateway calls yet and no remote to proben/a
  • Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 10 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 89/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

What the publisher says

From the unreal-mcp-ue4-for-ohd repository's README, as published. We do not edit it. Read it on GitHub

unreal-mcp-ue4-for-OHD

UE4.25.4-first MCP server for Operation Harsh Doorstop modding via Unreal Python Remote Execution (stdio transport)

Fork of runreal/unreal-mcp, heavily refactored UE4-first (via a UE4.27.2 stage) and retargeted here to UE4.25.4 for the OHDCore Mod Kit: same transport and tool surface, with version pins, docs links, and Python-dialect constraints adjusted for the kit's embedded Python 2.7.14. Port, tool, docs, and smoke-test work were developed with assistance from OpenAI Codex.

[!NOTE]

Still under active development — expect bugs, rough edges, and UE4.25-specific limitations.

Published package: unreal-mcp-ue4-for-ohd · Registry name: io.github.RibatTRW/unreal-mcp-ue4-for-ohd

[!CAUTION]

Not an official Epic Games project. Any connected MCP client can inspect and modify your open editor session — use a disposable test project first, especially for asset or world-generation tools.

Contents

  • Requirements · Setup · Migrating from unreal-mcp-ue4 · Editor remote execution · Usage · Sidebar tab · Internals · Testing · Publishing · Available Tools · Contributing · Troubleshooting · Notes and Limitations · Roadmap · License

Requirements

Reference: Unreal Engine Python API 4.25. No custom C++ plugin is required — the server uses the editor's built-in Python Remote Execution. UE5-only scripting features are not reintroduced; unreliable graph/binding flows are excluded from the MCP surface or return a clear message instead of failing silently.

graph TD
    A[MCP client] --> B[unreal-mcp-ue4-for-ohd stdio server]
    B --> C[manage_* namespaces + direct tools]
    C --> D[Python 2.7 payloads]
    D --> E[Unreal Editor via Remote Execution]

Setup

Autonomous agents setting up unattended: follow the ordered guide in docs/agent-setup.md.

npm install -g unreal-mcp-ue4-for-ohd   # recommended; then reference the `unreal-mcp-ue4-for-ohd` binary
npx unreal-mcp-ue4-for-ohd              # one-off invocation

Local source checkout:

git clone https://github.com/RibatTRW/unreal-mcp-ue4-for-OHD.git
cd unreal-mcp-ue4-for-OHD
npm install
npm run build   # produces `dist/bin.js`, `dist/index.js`, `dist/editor/tools.js`

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Install directly

Runs npx -y unreal-mcp-ue4-for-ohd on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add unreal-mcp-ue4-for-ohd -- npx -y unreal-mcp-ue4-for-ohd
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unreal-mcp-ue4-for-ohd: common questions

Is unreal-mcp-ue4-for-ohd MCP server safe?
Yes, by our scan: it is graded A (89/100). Read the unreal-mcp-ue4-for-ohd safety report
How do I install unreal-mcp-ue4-for-ohd?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does unreal-mcp-ue4-for-ohd need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is unreal-mcp-ue4-for-ohd maintained?
The last commit was 11 days ago (2026-09-09). The latest release is v2026.5.12-12.

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