---

name: roblox-api description: Roblox Engine API reference: classes, properties, methods, events. Use when looking up how to use Roblox classes or their members.

Roblox API Reference

Query the Roblox Engine API. For runtime queries, use roblox.api.getClass and roblox.api.getProperties tools (powered by ReflectionService).

Class Categories

Services

See services.md for: Players, Workspace, ReplicatedStorage, ServerStorage, RunService, +17 more

Gui

See gui.md for: ScreenGui, Frame, TextLabel, TextButton, TextBox, +15 more

Parts

See parts.md for: Part, MeshPart, UnionOperation, Model, Folder, +7 more

Physics

See physics.md for: Weld, WeldConstraint, Motor6D, HingeConstraint, SpringConstraint, +9 more

Effects

See effects.md for: ParticleEmitter, Beam, Trail, Fire, Smoke, +7 more

Animation

See animation.md for: Animation, AnimationController, Animator, AnimationTrack, Keyframe

Sound

See sound.md for: Sound, SoundGroup, SoundEffect, DistortionSoundEffect, ReverbSoundEffect

Characters

See characters.md for: Humanoid, HumanoidDescription, Accessory, Shirt, Pants, +1 more

Networking

See networking.md for: RemoteEvent, RemoteFunction, BindableEvent, BindableFunction, UnreliableRemoteEvent