Defi The Odds

What it does?
DefiTheOdds is a crypto market data API that goes beyond raw OHLCV. Alongside standard data and 20+ pre-calculated indicators (RSI, MACD, Bollinger Bands, ADX, ATR, and more), it adds the "Four Horsemen" - four independent, published-accuracy risk and volatility signals (tail risk, regime change, high-volatility, and breakout/expansion probability) for 50+ crypto assets. Everything comes back in one JSON payload from a single REST call, in under 200ms on average. Unlike most trading-signal products, the accuracy numbers behind each signal are published openly (ROC-AUC per model) with the full methodology on GitHub - not marketing claims you have to take on faith.

Who is it for?
Three groups: traders and quant builders who want to filter entries or backtest strategies with a real risk signal instead of just price action; developers building trading bots or dashboards who don't want to stand up their own TA/ML infrastructure; and AI agents (LangChain, OpenClaw, custom LLM tool-use setups) that need a single clean, documented, read-only data source to reason about market conditions without scraping or a black-box signal. Free tier covers BTC/ETH with 100 requests/day - no card required to try it.