Description

Interval: 1s

Request

{"event": "subscribe", "arg": [{ "channel": "markprice", "sym":"OKX_SPOT_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: `markprice`
> sym	`String`	Y	Unique identifier

Response

{"event":"subscribe","arg":[{"channel":"markprice","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: `markprice`
> sym	`String`	Unique identifier

Data Sample:

{
   "arg":{
      "channel":"markprice",
      "sym":"BINANCE_PERP_BTC_USDT"
   },
   "data":{
      "price":"93329.9",
      "markpx":"93325.57553788",
      "indexprice":"93293.46136364",
      "fundingrate":"0.00010000",
      "currentcycle":"1732118400000",
      "nextcycle":"0",
      "ts":"1732093896000"
   }
}

Field	Type	Remarks
> channel	`String`	markprice
> sym	`String`	Unique identifier
data	`Array`	Data
> markpx	`String`	Market Price
> indexpx	`String`	Index Price
> fundingrate	`String`	Current funding rate
> currentcycle	`String`	starting timestamp of current cycle
> nextcycle	`String`	starting timestamp of next cycle
> ts	`String`	Timestamp, in Unix millionsecond. e.g. 1732093591811