s&box MCP Knowledgebase

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

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Results for "json" in menu_bookDocumentation 30 results closeClear
menu_bookDocumentation
May 5, 2026

File System - s&box Assets Documentation

File System s&box provides several file systems for different purposes - data persistence, mounted content, and organization. File Systems Data File System For …

menu_bookDocumentation
May 12, 2026

LocalData static class: Server-side data persistence

LocalData Static Class API Reference LocalData provides server-side data persistence that survives server restarts. It's useful for storing configuration, ban l…

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

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

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 5, 2026

HTTP Requests - s&box Networking Documentation

HTTP Requests s&box provides an HTTP client for making web requests to external APIs. This is useful for fetching data, submitting scores to custom backends, or…

menu_bookDocumentation
May 4, 2026

ClothingContainer: Apply, ApplyAsync, CreateFromConnection, RemoveUnownedItems, and Body Group Masking

ClothingContainer: Avatar Dressing System — Apply, CreateFromConnection, and RemoveUnownedItems manages a player's avatar outfit. It handles clothing compatibil…

menu_bookDocumentation
May 20, 2026

Component Versioning: JsonUpgrader for Breaking Property Changes in s&box

s&box Component Versioning lets you define upgraders for breaking changes like property renames or data structure changes. Upgrades are chained — if a component…

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 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 3, 2026

Localization (i18n)

Localization (i18n) Support multiple languages using localization tokens. How It Works Use tokens starting with in UI strings. The system replaces them based on…

menu_bookDocumentation
May 4, 2026

GameResource: Custom Asset Types, PostLoad, PostReload, ResourceLibrary.Get, and Resource Networking

GameResource: Custom Asset Types, PostLoad, and Resource Networking is the base class for all JSON-based assets in s&box (prefabs, scene files, custom assets). …

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 4, 2026

Sandbox: SaveSystem — scene diff save/load with versioning and ISaveEvents

Sandbox SaveSystem — Scene Diff Save/Load The captures the difference between the current scene state and the original scene file. This means saves are compact …

menu_bookDocumentation
May 4, 2026

Sandbox: PlayerInventory — weapon slots, pickup, drop, and loadout persistence

Sandbox PlayerInventory — Weapon Slots, Pickup, Drop, and Loadout Persistence manages up to 6 weapon slots, handles pickup/drop logic, and delegates loadout sav…

menu_bookDocumentation
May 5, 2026

Game Resources - s&box Documentation

Official s&box documentation for Game Resources - custom asset types. GameResource allows defining custom asset types that can be created in the editor and load…

menu_bookDocumentation
May 4, 2026

s&box SceneNetworkSystem: Scene Loading and Snapshot Protocol

s&box SceneNetworkSystem: Scene Loading and Snapshot Protocol is the core networking system that manages scene loading, object spawning, and snapshot synchroniz…

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 5, 2026

Binary Serialization - s&box Documentation

Official s&box documentation for Binary Serialization - efficient data storage. Binary Serialization saves data in compact binary format. The system handles ver…

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…