VibeUE
An MCP expansion and AI editor toolset for Unreal Engine 5.8+. VibeUE extends the native MCP server, ToolsetRegistry, and AgentSkill system with Python-first editor automation, profiling, UI, terrain, animation, audio, Niagara, and more.
Open source AI tools for Unreal Engine
AI-powered tools for Unreal Engine development
We build open-source MCP tools that let AI agents and developers create games faster, from editor automation to project-wide intelligence.
Products
Each product solves a different part of the workflow: editor control, reusable domain knowledge, and project-level understanding.
An MCP expansion and AI editor toolset for Unreal Engine 5.8+. VibeUE extends the native MCP server, ToolsetRegistry, and AgentSkill system with Python-first editor automation, profiling, UI, terrain, animation, audio, Niagara, and more.
An open-source library of 59 Agent Skills across core Unreal Engine, Ultra Dynamic Sky, and Ultra Dynamic Weather. Portable SKILL.md packs give AI coding agents real Unreal classes, APIs, patterns, and gotchas.
An intelligence layer for Unreal Engine games. Game IQ understands assets, Blueprints, C++, gameplay systems, and dependencies, then exposes that project knowledge through Unreal Engine 5.8's native MCP server.
Writing
A practical guide to Unreal Engine MCP extension points: built-in toolsets, Toolset Registry discovery, AI Callable methods, Agent Skills, direct MCP tools, and console commands.
A comprehensive look at how VibeUE uses lazy-loaded skills, dynamic API discovery, and Python execution to give AI assistants full control over Unreal Engine with minimal context overhead
How I used Claude Opus 4.5 in GitHub Copilot to add complete Unreal Engine Enhanced Input System support to VibeUE - from design document to 104 actions across 10 MCP tools
VibeUE MCP Server has been published to the Epic Games FAB Marketplace, bringing AI-powered Unreal Engine development tools to creators everywhere
Mission
Every core product we build is open source, community-driven, and free. We believe the best game development tools are built in the open, and that AI should amplify human creativity, not replace it.