K-Line / Candlestick

Supported kline intervals: 1m, 3m, 5m, 15m, 30m, 1H, 2H, 4H, 6H, 8H, 12H, 1D, 3D, 1W, 1M.

Channel name: <symbol>@kline_<interval>

Subscription example:

{"method":"SUBSCRIBE","params":["btcusdc@kline_1m"]}

Response example:

{
    "eventType": "kline",
    "param": "btcusdc@kline_1m",
    "action": "update",
    "eventTime": 1778596012897,
    "data": [
        {
            "openTime": 1778595960000,
            "closeTime": 1778596019999,
            "symbolId": "BTCUSDC",
            "interval": "1m",
            "firstId": 2213417774154692865,
            "lastId": 2213418182705068289,
            "open": "80771.6",
            "close": "80724.9",
            "high": "80782.3",
            "low": "80724.9",
            "volume": "0.0016",
            "numTrades": 8,
            "closed": false,
            "quoteVolume": "129.22179",
            "takerBuyVolume": "0.0006",
            "takerBuyQuoteVolume": "48.45327"
        }
    ]
}

Field descriptions

Field	Description
`openTime`	Kline start time
`closeTime`	Kline end time
`symbolId`	Trading pair
`interval`	Kline interval
`firstId`	First trade ID during this kline period
`lastId`	Last trade ID during this kline period
`open`	First traded price during the kline period
`close`	Last traded price during the kline period
`high`	Highest traded price during the kline period
`low`	Lowest traded price during the kline period
`volume`	Trading volume during the kline period
`numTrades`	Number of trades during the kline period
`closed`	Whether the kline is closed
`quoteVolume`	Trading turnover during the kline period
`takerBuyVolume`	Taker buy volume
`takerBuyQuoteVolume`	Taker buy quote volume