base parameter is the fiat currency used for pricing, and currencies contains uppercase crypto currency codes such as BTC, ETH, or USDT.curl --location --request GET 'https://api.kucoin.com/api/ua/v2/market/fiat-price?base=USD¤cies=BTC¤cies=ETH¤cies=USDT'{
"code": "200000",
"data": {
"BTC": "51193.6249998720159375",
"ETH": "0.9989000000000000",
"USDT": "0.9989000000000000"
}
}