Clean, fast, reliable access to orderbooks, trades, candles, funding rates and liquidations. One API key. Simple JSON responses. Ship in minutes.
import requests, pandas as pd, io r = requests.get( "https://smartsui.io/api/bulk/BTC/l2book", headers={"X-API-Key": "hlc_your_key"}, params={"last_hours": 4} ) df = pd.read_parquet(io.BytesIO(r.content))
Sub-second WebSocket feeds for orderbook updates, trades, and funding rate changes.
Complete tick-by-tick trades, full L2 order book snapshots, and funding rate archives. Download as Parquet, CSV, or JSON.
One API key, clean JSON responses, Python & JavaScript SDKs. From zero to production in under 5 minutes.