In Bitreserve's API, we frequently call for a currency as an input or output. We represent all such currencies and stores of value by a three letter code. Listed below are the currencies and stores of value that we currently support.
BTC- BitcoinCHF- Swiss FrancCNY- Chinese YuanEUR- European EuroGBP- British PoundINR- Indian RupeeJPY- Japanese YenMXN- Mexican PesoUSD- United States DollarXAG- Ounces of SilverXAU- Ounces of GoldXPD- Ounces of PalladiumXPT- Ounces of Platinum