WebsocKetV2Index priceOn this pageIndex priceRequest Format index_price@{symbol} example: index_price@btc_usdt rate: 1000ms Response Example Response{ "topic": "index_price", "event": "index_price@btc_usdt", "data": { "s": "btc_usdt", // trading pair "p": "50000", // price "t": 123124124 // timestamp }}