get https://api.coingate.com/api/v2/rates/merchant//
Current exchange rate for any two currencies, fiat or crypto. This endpoint is public, authentication is not required.
All supported currencies: https://coingate.com/currencies
Endpoint examples:
https://api.coingate.com/v2/rates/merchant/EUR/BTC
https://api.coingate.com/v2/rates/trader/buy/EUR/ETH
https://api.coingate.com/v2/rates/trader/sell/EUR/LTC