{"id":"genorca-unreal-mcp","name":"unreal-mcp","af_score":46.8,"security_score":28.5,"reliability_score":33.8,"what_it_does":"Provides an MCP server integration that lets AI assistants control Unreal Engine (UE5.6+) through natural-language tool calls, translating them into Unreal Editor operations via an Unreal plugin and an embedded Python interpreter (spawn/edit actors, assets, materials, Blueprint graphs, behavior trees, and some editor/game settings).","best_when":"You have a local (or trusted) MCP client connected to a developer workstation running Unreal Editor, and you want AI-driven orchestration of editor actions during prototyping/content creation.","avoid_when":"You want a multi-tenant SaaS/API service for remote users or untrusted agents to control Unreal instances without robust authentication/authorization and network protections beyond what’s documented.","last_evaluated":"2026-03-30T13:53:21.368505+00:00","has_mcp":true,"has_api":false,"auth_methods":[],"has_free_tier":false,"known_gotchas":["Tool calls can have destructive effects (e.g., delete_by_label, replace operations) so agents may need guardrails/confirmations.","Many operations likely depend on correct selection/context inside Unreal (e.g., selected actors/nodes), so agents may need to call selection/read tools before write tools.","Graph/BT build operations may be sensitive to schema/IDs; mismatches could lead to partial builds or compile failures without clear recovery guidance."],"error_quality":0.0}