What is the Crypto Fear and Greed Index?

The Fear and Greed Index measures crypto market sentiment on a 0-100 scale: 0-24 = Extreme Fear (potential buy opportunity), 25-49 = Fear, 50-74 = Greed, 75-100 = Extreme Greed (potential sell signal). It aggregates: volatility, market volume, social media, surveys, BTC dominance. RavTrader provides a free fear/greed widget and our API includes real-time sentiment data at ravtrader.io/api/v1/fear-greed.