{"id":"finnhub-api","name":"Finnhub","homepage":"https://finnhub.io","repo_url":"https://github.com/Finnhub-Stock-API/finnhub-python","category":"financial-data","subcategories":["market-data","stocks","forex","crypto","news"],"tags":["finnhub","stocks","market-data","financial","websocket","rest-api","sdk","news"],"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.","use_cases":["Real-time stock price monitoring via WebSocket for event-driven financial agents","Earnings calendar and earnings surprise data for trading strategy automation","Company news and sentiment analysis for fundamental research agents","Insider trading and institutional ownership data for alternative data signals","Crypto exchange rates and OHLCV data for multi-asset portfolio agents"],"not_for":["Options chains and derivatives data (limited coverage)","Ultra-low latency HFT trading (not a direct market feed)","Fixed income and bond data","Global macroeconomic datasets at depth (use Quandl/NASDAQ Data Link)"],"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.","alternatives":["alphavantage-api","quandl-api"],"af_score":79.4,"security_score":null,"reliability_score":null,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":"current","last_evaluated":"2026-03-01T09:50:05.573276+00:00","performance":{"latency_p50_ms":150,"latency_p99_ms":600,"uptime_sla_percent":99.5,"rate_limits":"Free: 60 requests/minute; paid plans up to 300+ requests/minute","data_source":"llm_estimated","measured_on":null}}