BITFINEX:BTCUSD You can check if 200 day MA crossed by 50 day MA. Nuff said.
Script that publishes the EMA for 20, 50, 100, and 200. Follow me on Twitter at @PotatoMcGruff
Updated the code by CryptoLife71 so that the 200ma shows correctly.
TEMA - Triple Moving Averages (50,200,314)