TRADINGDATACOMPARE
LIVE · 2026-05-27

Best for
Crypto Trading.

Crypto trading bots and research requiring real-time and historical crypto market data.

Ranked · Top 5

#1
Polygon.io (now Massive) TOP PICK FREE TIER

Real-time and historical stock, options, forex, and crypto data — rebranded to Massive in 2026

FROM $0/mo API REST · WebSocket · SDK SDK Python · JavaScript · Go
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#2
Alpaca FREE TIER

Commission-free broker API with built-in market data

FROM $0/mo API REST · WebSocket · SDK SDK Python · JavaScript · Go
REVIEW →
#3
Finnhub FREE TIER

Free real-time stock API with news, sentiment, and fundamentals

FROM $0/mo API REST · WebSocket SDK Python · JavaScript · Go
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#4
Twelve Data FREE TIER AFFILIATE

Global stocks, forex, and crypto API with built-in technical indicators

FROM $0/mo API REST · WebSocket SDK Python · JavaScript · Java
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#5
Alpha Vantage FREE TIER

Free stock API with technical indicators and fundamentals

FROM $0/mo API REST SDK Python · JavaScript · Java
REVIEW →

Cross-Reference

Polygon.io (now Massive) vs Alpaca Polygon.io (now Massive) vs Finnhub Alpaca vs Finnhub Alpaca vs Twelve Data Finnhub vs Twelve Data Finnhub vs Alpha Vantage Twelve Data vs Alpha Vantage

Other Use Cases

Best for Algo TradingBest for Forex TradingBest for BacktestingBest for Quant ResearchBest for Fintech App DevelopmentBest for BeginnersBest for Options TradingBest for Real-Time Market DataBest for Global EquitiesBest for Python DevelopersBest for JavaScript / Node.js DevelopersBest for Deep Historical DataBest for WebSocket StreamingBest for Free Tier OnlyBest for Budget Under $30/moBest for Institutional / EnterpriseBest for Active TradersBest for Options Trading (Brokers)Best for Global Multi-Asset BrokersBest for Brokers with API AccessBest for Prop Firms for BeginnersBest for Prop Firms for ForexBest for 1-Step Prop Firm ChallengesBest for Highest Prop Firm Profit Splits