s&box MCP Knowledgebase

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

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terminalCode Example
May 5, 2026

ConVar and ConCmd — console variables and commands with flags and game settings

ConVar and ConCmd — Console Variables and Commands and are s&box attributes for exposing variables and commands to the developer console. Console Commands Conso…

menu_bookDocumentation
May 12, 2026

s&box PostProcessGroup: Post-process categories

PostProcessGroup Enum Documentation PostProcessGroup is an enum that categorizes post-processing effects for organization in the spawn menu and asset browser. I…

codeAPI Reference
May 12, 2026

s&box BaseToggle: Toggle state base class

Abstract base class for toggle state with [Sync] support and event callbacks. Properties Methods Usage Inherit from this class for any component that needs a sy…

menu_bookDocumentation
May 12, 2026

s&box DupeCategory: Workshop duper categories

s&box DupeCategory Enum DupeCategory is an enum used to categorize workshop dupes for filtering and browsing. Each category has an associated icon for UI displa…

menu_bookDocumentation
May 12, 2026

s&box StackDirection: Stacker tool directions

s&box StackDirection Enum StackDirection is an enum used by the Stacker tool to specify which axis to stack objects along. It defines the six cardinal direction…

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…

menu_bookDocumentation
May 4, 2026

BasePostProcess: Custom Post-Processing with GetWeighted, BlitMode, and PostProcessVolume Blending

BasePostProcess<T>: Custom Post-Processing Effects with Volume Blending is the current (non-obsolete) base class for post-processing effects in s&box. It replac…

terminalCode Example
May 5, 2026

WorldPanel and ScreenPanel — HUD overlays and 3D world-space UI with Razor PanelComponent

WorldPanel and ScreenPanel — UI in the World s&box UI uses (Razor) attached to either a (HUD overlay) or (3D world-space UI). The same component works with both…

menu_bookDocumentation
May 4, 2026

FileSystem: Mounted, Data, OrganizationData, Cache, and Memory Filesystems

FileSystem: Accessing Game Files in s&box s&box provides several filesystem access points through the static class. Available Filesystems Reading and Writing Fi…

menu_bookDocumentation
May 3, 2026

Backend Services - Achievements, Leaderboards, Stats

Backend Services - Achievements, Leaderboards, Stats Integrate Steam backend services for player progression, competition, and analytics. Achievements Track and…

menu_bookDocumentation
May 20, 2026

Razor Panels: HTML/CSS UI with C# in s&box

s&box UI can be created using Razor syntax — web-like HTML/CSS combined with C#. Panels are not rendered via a HTML renderer; the syntax is a convenience layer …

menu_bookDocumentation
May 5, 2026

Input - s&box Gameplay Documentation

Input s&box provides a comprehensive input system that handles keyboard, mouse, and gamepad input. The input system uses named actions defined in your project s…

menu_bookDocumentation
May 4, 2026

NetList and NetDictionary: Delta Sync, OnChanged Callbacks, Write Guard, and CanWriteChanges

NetList and NetDictionary: Networked Collections with Delta Sync and are s&box networked collection types for use with . They only send changes (deltas) over th…

menu_bookDocumentation
May 5, 2026

Prefab instance overrides — customizing instances without breaking the prefab link

Prefab Instance Overrides Prefab instance overrides let you customize individual instances without affecting the original prefab or other instances. The instanc…

menu_bookDocumentation
May 3, 2026

Prefab Instance Overrides

Prefab Instance Overrides Customize individual prefab instances without affecting the original or other instances. Types of Overrides Visual Indicators Prefab i…

menu_bookDocumentation
May 4, 2026

GameObjectSystem: Auto-Instantiation, Host-Controlled [Sync], RPCs, Stage Hooks, and Configuration Priority

GameObjectSystem: Auto-Instantiation, [Sync] Properties, and RPCs is a scene-level singleton that is automatically instantiated once per scene. Every non-abstra…

menu_bookDocumentation
May 12, 2026

LocalData persistence for server-side data

LocalData Persistence in s&box LocalData provides server-side data persistence that survives server restarts. It's useful for storing configuration, ban lists, …

menu_bookDocumentation
May 4, 2026

ConVar and ConCmd: Console Variables and Commands in s&box

ConVar and ConCmd: Console Variables and Commands s&box uses and attributes on static properties and methods to expose them to the console system. ConVar (Conso…

codeAPI Reference
May 12, 2026

s&box ToolAction: Toolgun input binding

ToolAction Enums and ToolActionEntry API Reference ToolInput, InputMode, and ToolActionEntry are used by the toolgun system to bind actions to input slots with …

terminalCode Example
May 3, 2026

Stats API

Track player statistics with the Stats service. Recording Stats Reading Stats Stat Types Batching Stats are automatically batched and sent periodically. Call as…