Currencies & Blockchains

All possible crypto currencies:

ENUM value	Description	Blockchain decimals
BTC	Bitcoin	8
LTC	Litecoin	8
XDG	Dogecoin	8
ETH	Ethereum	18
USDT	Tether USD (ERC-20)	6
USDC	USD Coin (ERC-20)	6
FRAX	Frax (ERC-20)	18
DAI	DAI (ERC-20)	18
POL (prev. MATIC)	Polygon	18
USDT_POL	Tether USD (Polygon)	6
USDC_POL	USD Coin (Polygon)	6
TRX	Tron	6
USDT_TRX	Tether USD (TRC-20)	6
BNB	Binance Coin	18
USDT_BSC	Tether USD (BEP-20)	18
USDC_BSC	USD Coin (BEP-20)	18
TON	Toncoin	9
USDT_TON	Tether USD (TON)	6

All possible fiat currencies:

ENUM value	Description
USD	Dollar USA
EUR	Euro
UAH	Ukrainian hryvnia
KZT	Kazakhstani tenge
RUB	Russian ruble

Blockchains:

ENUM value
BITCOIN
ETHEREUM
BINANCE_SMART_CHAIN
TRON
DOGECOIN
POLYGON
LITECOIN
TONCOIN