s&box MCP Knowledgebase

Documentation, API references, code examples and community knowledge for s&box development.

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terminalCode Example
May 3, 2026

BaseWeapon and BaseCarryable Weapon Framework

BaseWeapon and BaseCarryable - Weapon Framework Base classes for creating weapons in s&box. Provides ammo management, view/world models, and input handling. Bas…

terminalCode Example
May 3, 2026

HTTP Requests

s&box provides the static class for asynchronous HTTP requests. Allowed URLs Domains only (no IP addresses) permitted on ports: 80, 443, 8080, 8443 Use command …

menu_bookDocumentation
May 12, 2026

s&box Throwable: Grenade type enum

Throwable Enum Documentation Throwable is an enum that defines the type of throwable weapon for viewmodels. It is used by the ViewModel component to specify whi…

menu_bookDocumentation
May 12, 2026

s&box ThrowType: Grenade throw distance

ThrowType Enum Documentation ThrowType is an enum that defines how a grenade is thrown by the HandGrenadeWeapon. It controls the throw distance and trajectory b…

terminalCode Example
May 12, 2026

s&box achievement unlocking with Rpc.FilterInclude targeting

s&box Achievement Unlocking with Rpc.FilterInclude This example shows achievement unlocking using s&box's Services.Achievements, Services.Stats, and Rpc.FilterI…

menu_bookDocumentation
May 20, 2026

Component Versioning: JsonUpgrader for Scene and Prefab Migration

s&box component versioning uses attributes and the property to migrate serialized scene/prefab data when you make breaking changes to component properties. This…

menu_bookDocumentation
May 20, 2026

Scene Metadata: ISceneMetadata for Queryable Scene and Prefab Data

The interface in s&box allows Components to save data that can be accessed without loading a Scene or cloning a Prefab. Metadata is accessible via or directly. …

codeAPI Reference
May 3, 2026

ToolMode SelectionPoint and Trace Helpers

ToolMode.SelectionPoint and Trace Helpers Helper methods and data structures for toolgun selection and placement. SelectionPoint Struct Trace Methods Placement …

codeAPI Reference
May 3, 2026

BaseConstraintToolMode for Constraint Tools

BaseConstraintToolMode Abstract Class Base class for two-stage constraint tools (weld, rope, elastic, etc.) with selection point handling. Class Overview Contro…

menu_bookDocumentation
May 3, 2026

Property Attributes for Editor Inspector

Property Attributes for Editor Inspector Property attributes customize how fields appear and behave in the s&box editor inspector. Organization Attributes Visib…

terminalCode Example
May 3, 2026

Achievements and Services

s&box provides built-in services for achievements, stats, and leaderboards. Achievements Unlock an Achievement Achievement Types Stat-based - Auto-unlock when s…

menu_bookDocumentation
May 20, 2026

Binary Serialization: BlobData for Large GameResource Data Storage

When JSON files grow too large in s&box, you can store data as a binary blob using the class. This works with GameResource assets and provides custom serializat…

codeAPI Reference
May 3, 2026

Sandbox.GameResource

Sandbox.GameResource Base class for custom asset types. Overview GameResource is the base class for creating custom asset types that appear in the editor with f…

codeAPI Reference
May 3, 2026

Global.ISpawnEvents Spawn Event Interface

Global.ISpawnEvents Interface Scene-wide event interface for listening to spawn operations. Implement on components to receive pre/post spawn callbacks. Interfa…

terminalCode Example
May 4, 2026

Sandbox: UndoSystem — per-player undo stack with bounded history (128 steps)

UndoSystem — Per-Player Undo Stack The is a that maintains a per-player undo stack. Each entry holds a set of s that get destroyed when the undo is triggered. U…

menu_bookDocumentation
May 4, 2026

Joint Components: HingeJoint Motor Modes, BreakForce, Body Resolution, and Joint Creation Timing

Joint Components: HingeJoint, FixedJoint, and the Joint Base Class s&box provides physics joint components for constraining physics bodies. All joints extend th…

menu_bookDocumentation
May 20, 2026

Network Events: INetworkListener and INetworkSpawn Interfaces

React to players joining and leaving by implementing or on a component in the scene. INetworkListener Example Spawn a player object when someone joins: INetwork…

terminalCode Example
May 5, 2026

Physics joints — Fixed, Ball, Hinge, Slider, Spring, and Wheel

Physics Joints Joints connect two physics bodies together with constraints. All joint types are components added to a GameObject positioned at the joint's ancho…

menu_bookDocumentation
May 4, 2026

s&box LineRenderer and TrailRenderer: Points, Spline Interpolation, Face Modes, Texture Scrolling, and DepthFeather

s&box LineRenderer and TrailRenderer: Procedural Line Rendering renders a line through a list of points with configurable width, color, and spline interpolation…

menu_bookDocumentation
May 20, 2026

Component Interfaces: ExecuteInEditor, ICollisionListener, IDamageable in s&box

s&box provides several Component interfaces for specific purposes: editor execution, collision handling, triggers, damage, and networking. ExecuteInEditor Compo…