http://fixer.io currency types

fixer.io-types.json

// GET https://api.fixer.io/latest?base=USD
{
    "base": "USD",
    "date": "2018-01-30",
    "rates": {
        "AUD": 1.2354,
        "BGN": 1.5746,
        "BRL": 3.1624,
        "CAD": 1.2321,
        "CHF": 0.93302,
        "CNY": 6.3253,
        "CZK": 20.393,
        "DKK": 5.9911,
        "EUR": 0.80509,
        "GBP": 0.70791,
        "HKD": 7.8188,
        "HRK": 5.9728,
        "HUF": 249.88,
        "IDR": 13389,
        "ILS": 3.3996,
        "INR": 63.648,
        "JPY": 108.67,
        "KRW": 1070.1,
        "MXN": 18.621,
        "MYR": 3.9005,
        "NOK": 7.6989,
        "NZD": 1.3636,
        "PHP": 51.327,
        "PLN": 3.337,
        "RON": 3.7447,
        "RUB": 56.025,
        "SEK": 7.8758,
        "SGD": 1.3107,
        "THB": 31.41,
        "TRY": 3.7705,
        "ZAR": 11.914
    }
}