Unreal Engine API reference
that actually makes sense.
Community-maintained documentation for UE 5.6 C++ and Blueprint APIs. Real signatures, real caveats, real examples.
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Core
Base object model, reflection system, garbage collection.
Engine
Actors, components, world management, gameplay framework.
Math & Containers
FVector, FRotator, FTransform, TArray, TMap, TSet.
AI
Behavior Trees, AI Controllers, Perception system.
Networking
Replication, RPCs, Online Subsystem.
Rendering
Materials, render targets, post-processing, shaders.
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API Entries
5.6
UE Version
Open
Community
Free
Cost to Use