TRADINGDATACOMPARE
LIVE · 2026-05-27

Best for
Options Trading.

Options traders and systems needing real-time options chains, Greeks, and historical options 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
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#3

⚠️ Service shut down August 31, 2024 — no longer available

FROM N/A API REST · WebSocket · SDK SDK Python · JavaScript · Java
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#4
Databento FREE TIER

Institutional-grade tick data with pay-as-you-go pricing

FROM From $0 API REST · WebSocket · SDK SDK Python · Rust · C++
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#5
Finazon FREE TIER

Modular market data marketplace — pay only for the feeds you need

FROM From $5/mo API REST · WebSocket SDK Python · Java · C#
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Cross-Reference

Polygon.io (now Massive) vs Alpaca Polygon.io (now Massive) vs IEX Cloud (Discontinued) Alpaca vs IEX Cloud (Discontinued) Alpaca vs Databento IEX Cloud (Discontinued) vs Databento IEX Cloud (Discontinued) vs Finazon Databento vs Finazon

Other Use Cases

Best for Algo TradingBest for Crypto TradingBest for Forex TradingBest for BacktestingBest for Quant ResearchBest for Fintech App DevelopmentBest for BeginnersBest 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