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Kline Data

Description​

Real-time candlestick data is delivered as a subscription stream, not a request/response call. Connect to wss://api.prex.world/ws and subscribe to the kline:{symbol}:{interval} channel.

Supported intervals: 1m, 5m, 15m, 1h, 4h, 1d, 1w, 1M. Subscribing with any other interval is acknowledged but produces no data.

Upon subscribing, the server pushes a kline_snapshot message with the latest candle, then pushes kline updates in real time as the candle changes.

Subscribe​

{
  "type": "subscribe",
  "channel": "kline:BTCUSDT:1h"
}

Push Example​

{
  "type": "kline",
  "channel": "kline:BTCUSDT:1h",
  "data": {
    "time": 1711000000,
    "open": "65400.00",
    "high": "65500.00",
    "low": "65350.00",
    "close": "65432.10",
    "volume": "123.456",
    "quote_volume": "8074000.00",
    "trade_count": 542,
    "is_final": false
  }
}
  • time — candle open time as a UNIX timestamp in seconds.
  • is_final — true when the candle period has closed.

See WebSocket API General Info for connection details. For historical candles, use GET /fapi/v1/klines.