Does Xignite offer historical crypto price data? Does Xignite offer cryptocurrency price data? Does Xignite provide a real-time currency converter API? Which crypto exchanges does the Xignite Crypto API provide coverage for? Where does the Xignite FX rates data come from? How often are Xignite forex rates data refreshed? How are highs and lows for FOREX rates calculated? What are the trading hours for FOREX? Does Xignite provide currency conversion rates? How does Xignite quote FX forward points? Does Xignite use Bid, Ask, or Mid as the foreign exchange rate value? What time are historical exchange rates made available? Why does the inverse of USDEUR not equal to EURUSD (or any 2 currency pairs)? How are the 'Official' FOREX rates determined? Does Xignite provide exchange-based cryptocurrency quotes? Do you have historical cryptocurrency data? What is the minimum bar level data for cryptocurrencies?