Features: Native MCP server in the Unreal Editor; MCP AI clients (Claude Code, Cursor, ...) drive the editor: 270 tool entries / 533 operations / 60 categories; AI perf-optimization loop; presets; HTTP JSON-RPC + Python stdio bridge; loopback-only; Bearer auth; rate limiting; Python opt-in.

Code Modules: MasonMCP (Editor); editor-only.

Number of Blueprints: 0

Number of C++ Classes: 73

Network Replicated: No (loopback 127.0.0.1:55557/55558)

Supported Development Platforms: Windows: Yes / Mac: No / Linux: No

Supported Target Build Platforms: None (editor-only)

Documentation Link: https://github.com/MasonCraftGames/MasonMCP-docs

Example Project: https://drive.google.com/file/d/1m8kLrYuBeii_tjS0CXqZl2bQ6B6-LjPv

Important/Additional Notes:

Dependencies (Epic-shipped UE plugins): EditorScriptingUtilities, DataValidation, GameplayAbilities, EnhancedInput, LevelSequenceEditor, Niagara, ChaosEditor (opt), GeometryCollectionPlugin (opt), Fracture (opt), PlanarCut (opt), MetaSound (opt), StateTree (opt), CommonUI, PCG, GeometryScripting, IKRig; GLB import needs engine GLTFImporter; Python bridge needs Python 3.10+ with mcp PyPI package.

Licensed under the Fab License Agreement.

MasonCraft Games

MasonCraft Games

Product types