Trading pair (e.g. BTC/USDT)
"BTC/USDT"
Market type: spot for spot trading, swap for perpetual contracts
spot, swap "spot"
Exchange identifier
binance, okx, bybit, bitget, coinbase, kraken, gate, htx, kucoin, mexc, upbit, bitfinex, bitstamp, deribit, bitmex, bithumb "binance"