Currency

Allowed values for pay_currency, receive_currency, and currency (must be uppercase):

Value	Description	Amount precision
BRL	Brazilian Real	Up to 2 decimal places
USDT	Tether	Up to 4 decimal places
USDC	USD Coin	Up to 4 decimal places
USD	US Dollar	Up to 2 decimal places

Receive accounts: pay_method=1 only BRL; pay_method=2 only USDT (on-chain networks in Create receive account: TRC20 / ERC20).