s&box MCP Knowledgebase

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

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Results for "string" in menu_bookDocumentation 89 results closeClear
menu_bookDocumentation
May 20, 2026

RPC Messages: Broadcast, Owner, Host with Filtering and Caller Info

Components can contain RPCs — functions that when called locally, are also called remotely. Supported RPC argument types are the same as Sync properties. Basic …

menu_bookDocumentation
May 20, 2026

HTTP Requests: Async GET and POST with JSON in s&box

s&box provides a static class for asynchronous HTTP requests (GET, POST, DELETE, etc.) with JSON support. Allowed URLs Only or URLs to domains (no IP addresses)…

menu_bookDocumentation
May 20, 2026

Custom GameResource Assets: Define, Create, and Access Custom Asset Types

Define custom asset types as subclasses. They get a nice inspector window, are hotloaded in-game, and are stored as JSON files with a custom extension. Creating…

menu_bookDocumentation
May 20, 2026

Auth Tokens: Steam Identity Validation for External Services

Auth Tokens validate that HTTP or WebSocket requests originate from a legitimate Steam user in an active s&box game session. Use them to tie data to Steam accou…

menu_bookDocumentation
May 20, 2026

Localization: Multi-Language Token System for UI Text

s&box supports localization via JSON token files. Any displayed string beginning with is treated as a localization token and automatically replaced with the use…

menu_bookDocumentation
May 20, 2026

CodeGenerator: Compile-Time Method and Property Wrapping via Attributes

The attribute in s&box lets you create custom attributes that wrap methods and properties at compile time. This is the mechanism behind properties and — you can…

menu_bookDocumentation
May 20, 2026

GameResource Extensions: Appending Data to Existing Assets Without Modification

ResourceExtensions in s&box append additional data to existing GameResources without modifying the original class or assets. Useful for adding properties to Clo…

menu_bookDocumentation
May 20, 2026

Dedicated Server User Permissions: Claims-Based Access Control via Steam ID

On s&box Dedicated Servers, you can specify admin permissions per user via the file using Steam IDs and claims. Configuration Claims Claims are strings describi…

menu_bookDocumentation
May 20, 2026

HTTP Requests: Async GET, POST, and JSON with the Static Http Class

s&box provides a static class for creating asynchronous HTTP requests (GET, POST, DELETE, etc.) with JSON content and response parsing. URL Restrictions Only or…

menu_bookDocumentation
May 20, 2026

Localization: Token-Based Multi-Language UI Text in s&box

s&box supports localization through token-based string replacement. Any displayed string beginning with is recognized as a localization token and replaced with …

menu_bookDocumentation
May 20, 2026

Console Variables and Commands: ConVar and ConCmd Runtime Configuration

s&box provides console variables () and console commands () for runtime configuration and debugging. Console Commands Static methods with attribute: Server Comm…

menu_bookDocumentation
May 20, 2026

Custom Assets: GameResource Definition with Inspector and Hotloading

Define custom asset types as in s&box. They provide inspector windows, are hotloaded in-game, and are stored as JSON files with custom extensions. Creating a Cu…

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 20, 2026

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

s&box Razor Panels use web-like HTML/CSS syntax with C# for UI creation. Panels are rendered natively (not via HTML renderer) — the syntax is a convenience laye…

menu_bookDocumentation
May 20, 2026

Sync Properties: Automatic Property Replication with [Sync] Attribute

Adding the attribute to a property on a Component will have its latest value sent to other players each time it changes. Only the owner of the object can change…

menu_bookDocumentation
May 12, 2026

Steam filtering API for user content sanitization

Steam Filtering API in s&box s&box provides Steam filtering APIs to sanitize user-generated content like names and chat messages. This helps prevent profanity, …

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 20, 2026

Async Tasks and Coroutines in s&box Components

Async tasks in s&box run on the main thread by default, operating like coroutines. They are the recommended replacement for coroutines. Basic Async Method Frame…

menu_bookDocumentation
May 20, 2026

Stats Service: Recording and Reading Player Statistics in s&box

Games can record per-player stats using . Stats can be queried individually, per-player, or globally. Recording Stats Increment a counter: Set a value directly:…

menu_bookDocumentation
May 20, 2026

Async Components: Coroutine-Style Async Tasks on the Main Thread

Async tasks in s&box run on the main thread by default, operating like coroutines. They are the recommended replacement for coroutines in s&box. Basic Async Fra…