{"id":"finnhub-api","name":"Finnhub","af_score":79.4,"security_score":null,"reliability_score":null,"what_it_does":"Financial data API providing real-time stock quotes, fundamental data, earnings, news, and alternative data (insider trading, ESG scores) via REST and WebSocket, with a generous free tier.","best_when":"You want a generous free tier with WebSocket support for real-time data, plus decent fundamental and alternative data coverage — good for prototyping and medium-scale production use.","avoid_when":"You need institutional-grade data quality guarantees, options data, or fixed income coverage.","last_evaluated":"2026-03-01T09:50:05.573276+00:00"}