Description

Interval: 1s

Request

{"event": "subscribe", "arg": [{ "channel": "indexkline","interval":"1m", "sym":"BINANCE_PERP_BTC_USDT" }]}

Field name	Type	Necessary	Remarks
event	`String`	Y	`subscribe` / `unsubscribe`
args	`Array`	Y	Subscribe param. There can be no more than 50 sym parameters per subscribe.
> channel	`String`	Y	Channel name: `indexkline`
> sym	`String`	Y	Unique identifier
> interval	`String`	Y	K Line interval, [1m/3m/5m/15m/30m/1H/2H/4H/8H/12H/1D/2D/5D/1W/1M]

Response

{"event":"subscribe","arg":[{"channel":"indexkline","interval":"1m","sym":"BINANCE_PERP_BTC_USDT"}],"code":0,"message":"Success"}

Field	Type	Remarks
event	`String`	`subscribe` / `unsubscribe`
code	`String`	Error Code
msg	`String`	Error Message
args	`Array`	Subscribe param
> channel	`String`	Channel name: `indexkline`
> sym	`String`	Unique identifier
> interval	`String`	K Line interval, [1m/3m/5m/15m/30m/1H/2H/4H/8H/12H/1D/2D/5D/1W/1M]

Data Sample:

{
   "arg":{
      "channel":"indexkline",
      "sym":"BINANCE_PERP_BTC_USDT",
      "interval":"1m"
   },
   "data":[
      [
         "1732094100000",
         "93458.82136364",
         "93459.45",
         "93458.82136364",
         "93459.45",
         "0"
      ]
   ]
}

Field	Type	Remarks
> channel	`String`	indexkline
> sym	`String`	Unique identifier
> interval	`String`	K Line interval, [1m/3m/5m/15m/30m/1H/2H/4H/8H/12H/1D/2D/5D/1W/1M]
data	`Array`	Data
> ts	`String`	Timestamp, in Unix millionsecond. e.g. 1732093591811
> o	`String`	Open Price for the interval
> h	`String`	Highest Price for the interval
> l	`String`	Lowest Price for the interval
> c	`String`	Close Price for the interval
> vol	`String`	Trading Quantity for the interval. Perp for the quantity of underlying coin; Spot for the quantity of quotation coin.