Skip to main content

SDKs

cStar's headless architecture means you build the UI — our SDKs handle the data layer. Official clients for JavaScript, React, and Svelte with framework-idiomatic patterns: hooks for React, rune classes for Svelte.

JS
@cstar.help/js Core JavaScript Client

The foundation. Works in Node.js, Deno, Bun, and browsers. Full TypeScript support, tree-shakeable, zero dependencies beyond fetch.

Admin CRUD Chat / Library clients TypeScript
Re
@cstar.help/react React Hooks

React hooks wrapping the JS client. Automatic loading states, error handling, and refetching. Works with Next.js, Remix, and Vite.

useChat / useArticles Two providers SSR-safe
Sv
@cstar.help/svelte Svelte 5 Rune Classes

Svelte 5 rune classes using $state and $derived. Reactive data fetching, automatic subscriptions, and SvelteKit integration.

ChatState / ArticlesState Two providers SvelteKit-ready

Quick Comparison

JS React Svelte
Install size ~12 KB ~18 KB ~15 KB
TypeScript Full Full Full
Loading states Manual Automatic Automatic
Real-time ChatClient useTyping() TypingState
SSR support Yes Yes Yes
Tests 102 34 32

Installation

# Core client (use this if you don't need framework bindings)
npm install @cstar.help/js

# React hooks + core client
npm install @cstar.help/react

# Svelte rune classes + core client
npm install @cstar.help/svelte