electrum-bitcoinprivate/lib/currencies.json

{
    "BitcoinAverage": [
        "USD",
        "EUR",
        "PLN"
    ],
    "Bittrex": [
        "BTC"
    ],
    "Poloniex": [
        "BTC"
    ],
    "CoinMarketCap": [
        "USD"
    ]
}