About the API
An API is a set of types and methods you call from your own code. Actor keeps that surface small on purpose, so you can discover everything quickly without digging through internals.
By design, Actor is a pretty heavy abstraction and does not provide customization beyond the methods it exposes.
What you get
Actor exposes three main control areas:
Each area is documented with Javadocs in the source.
Scrolling through the methods in your IDE is often the fastest way to understand every available option and discover the methods that you can use.
Actor also exposes a Ticking API that can be a very powerful utility.
Mappings and loaders
Actor supports every major loader (Fabric, Quilt, Forge and NeoForge) and mapping setups.
You might see different class names for the vanilla classes depending on your mappings (e.g., Yarn may use ClientPlayerEntity where Mojang Mappings use LocalPlayer).
The Actor API itself stays the same across loaders.