The API supports more than 180 fiat currencies, so, your local currency is most likely included.
The price of a coin is shown in a reference currency. Currencies include, but are not limited to, coins. In contrast to coins, currencies also includes Fiat currencies like US Dollar, EURO, YEN and more. The default reference currency is Dollar.
Examples
To get all the fiat currencies you can use:
https://api.coinranking.com/v2/reference-currencies?types[]=fiat
To get all the reference currencies you can use:
https://api.coinranking.com/v2/reference-currencies
Use the referenceCurrencyUuid parameter to change the shown prices.
To get a list of coin in euro you can use this endpoint:
https://api.coinranking.com/v2/coins?referenceCurrencyUuid=5k-_VTxqtCEI