UEFN

Controls Unreal Editor for Fortnite from Claude Code with 28 tools for actors, assets, levels, viewport, and Python execution.

UEFN MCP Server enables AI agents to control Unreal Editor for Fortnite through the Model Context Protocol. The server provides 28 tools across multiple domains: actor management (spawn, delete, transform, properties), asset operations (list, rename, duplicate), level management, viewport camera control, and arbitrary Python execution. The architecture uses two processes: a listener running inside UEFN's embedded Python and an external MCP server, communicating via HTTP to ensure main-thread safety for all Unreal API calls.