Headless Customer Support API

Build with cStar

The headless support platform that lets you build your own UI while we handle the backend. SDKs, webhooks, CLI, and a full REST API — everything you need to ship a support experience that agents actually enjoy.

2 min to first API call

3 SDKs JS, React, Svelte

$15 per seat, everything

Get Started API Reference

Terminal

Choose Your Integration

Three ways to integrate, from zero code to full control. Start simple, add complexity when you need it.

Level 1 Widget Embed 2 minutes, no code Drop a script tag on your site. Customers get a chat widget. You get tickets in your dashboard. Done. <script src="cstar.js"></script> Best for: landing pages, marketing sites, quick setup Level 2 SDK Integration 10 minutes, some code Import our React, Svelte, or JS SDK. Build custom chat UIs, help centers, and community forums with type-safe hooks and components. import { CStarClient } from '@cstar.help/js' Best for: custom UIs, SPA frameworks, embedded support Level 3 Full REST API 30 minutes, full control 160+ endpoints across 45 resources. Build a complete custom dashboard, sync with your systems, automate workflows. Any language. GET /api/v1/teams/{teamId}/tickets Best for: custom dashboards, backend integrations, automation

What are you building?

Support Widget Embed a custom support UI in your app Ticket Sync Sync tickets to your database via webhooks Full Integration Build a complete support experience with SDKs AI Agent Connect cStar to AI tools via MCP server

REST API

Full CRUD for tickets, customers, articles, and webhooks. Clean JSON responses, sensible pagination, proper error codes.

Explore endpoints

Framework SDKs

First-class support for React, Svelte, and vanilla JavaScript. Hooks, rune classes, and real-time subscriptions built in.

View SDKs

Webhooks

Real-time event delivery for tickets, customers, articles, and gamification. HMAC signing, retries, and a CLI for local testing.

Webhook guide

CLI + MCP

Developer CLI for local webhook forwarding, log streaming, and key management. MCP server mode for AI agent integration.

CLI reference

What no other support platform gives you

MCP

AI-native from day one

MCP server mode lets Claude, Cursor, and other AI tools work with your support data directly.

CLI

Stripe-style webhook testing

cstar listen forwards webhook events to localhost. cstar trigger fires test events.

SDK

Framework-native, not wrappers

React hooks with real-time subscriptions. Svelte 5 rune classes. Not auto-generated REST wrappers.

AI

AI context file included

Drop our AI context file into your project. Your AI assistant instantly knows the full API.

Quick look at the API

All endpoints follow REST conventions with consistent JSON responses. Authenticate with Bearer tokens and manage resources with standard CRUD operations.

GET /api/v1/teams/{teamId}/tickets List tickets

POST /api/v1/teams/{teamId}/tickets Create ticket

GET /api/v1/teams/{teamId}/customers List customers

POST /api/v1/teams/{teamId}/webhooks Create webhook

GET /api/v1/teams/{teamId}/articles List articles

Example: List open tickets

import { CStarClient } from '@cstar.help/js';

const cstar = new CStarClient({ apiKey: 'sk_live_your_key' });

const { data, pagination } = await cstar.tickets.list({
  status: 'open',
  priority: 'high'
});

console.log(`Found ${pagination.total} urgent tickets`);

Framework SDKs

Choose your framework. Each SDK provides idiomatic patterns — React hooks, Svelte rune classes, or the vanilla JS client for everything else.

JS @cstar.help/js Core client — works everywhere Re @cstar.help/react React hooks + context provider Sv @cstar.help/svelte Svelte 5 rune classes + stores