Phase 3 · Public API

Developer Hub

Free, open REST API for Aster Chain data. No API key, no registration. Rate-limited to 60 requests per minute per IP.

No API keyOpen CORS (*)60 req/minJSON envelopedFree forever
Base URL
https://aster-scan.com/api/public/v1
Response envelope (all endpoints)
{
  "ok":   true,           // false on error
  "ts":   1714320000000,  // Unix ms — server time
  "data": { ... }         // endpoint-specific payload
}

Endpoints

Click any endpoint to expand docs, code samples and a live playground.

Webhooks

LIVE

Subscribe to Aster Chain events. We POST a signed JSON payload to your URL within 60 seconds of an event. No polling needed.

1
Register your URL
Fill the form below — get an ID and a secret.
2
Receive events
We POST signed payloads to your endpoint in real-time.
3
Verify & process
Check X-AsterScan-Signature, then handle the data.
Available events
whale_order
Whale Orders
Orders ≥ $500 notional
price_alert
Price Alerts
Significant price movements
Register endpoint

Rate limits & errors

200Success
429Rate limit exceeded — retry after 60 s
503Upstream or database unavailable
Also available

Embeddable Widgets · Telegram Bot

Drop live data into any site with one line of HTML, or get Aster Chain alerts sent directly to your Telegram.