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/v1Response 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
LIVESubscribe 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.