Crypto Fear & Greed Index API
The crypto market's mood in one number. Get the Fear & Greed Index — the widely-watched 0 to 100 sentiment indicator (0 = Extreme Fear, 100 = Extreme Greed) computed from volatility, momentum, volume, social media and trends — as a clean API. Fetch the current value with its classification and time until the next update, pull the full historical daily series (last N days or the entire history), and get computed statistics over a window (average and its classification, plus the min and max days with their dates). Every call is live (no cache). 4 endpoints. Built for crypto dashboards, trading bots, market-sentiment widgets, backtesting and research. No upstream key, no cache.
api.oanor.com/fng-api
