K-line Streams

Subscribe

{
    "method": "SUBSCRIPTION",
    "params": [
        "spot@public.kline.v3.api.pb@BTCUSDT@Min15"
    ]
}

The K-line stream pushes updates for the requested K-line type every second (latest candle).

Request Parameters spot@public.kline.v3.api.pb@<symbol>@<interval>

Response Parameters

Parameter	Data Type	Description
publicspotkline	object	K-line information
interval	interval	K-line interval
windowstart	long	Start time of the K-line
openingprice	bigDecimal	Opening trade price during this K-line
closingprice	bigDecimal	Closing trade price during this K-line
highestprice	bigDecimal	Highest trade price during this K-line
lowestprice	bigDecimal	Lowest trade price during this K-line
volume	bigDecimal	Trade volume during this K-line
amount	bigDecimal	Trade amount during this K-line
windowend	long	End time of the K-line
symbol	string	Trading pair
symbolid	string	Trading pair ID
createtime	long	Event time

K-line interval parameters:

Min -> minutes; Hour -> hours; Day -> days; Week -> weeks; M -> month

• Min1
• Min5
• Min15
• Min30
• Min60
• Hour4
• Hour8
• Day1
• Week1
• Month1

Sample data

{
  "channel": "spot@public.kline.v3.api.pb@BTCUSDT@Min15",
  "publicspotkline": {
    "interval": "Min15",
    "windowstart": 1736410500,
    "openingprice": "92925",
    "closingprice": "93158.47",
    "highestprice": "93158.47",
    "lowestprice": "92800",
    "volume": "36.83803224",
    "amount": "3424811.05",
    "windowend": 1736411400
  },
  "symbol": "BTCUSDT",
  "symbolid": "2fb942154ef44a4ab2ef98c8afb6a4a7",
  "createtime": 1736410707571
}