AlpacaFree tier
Options Data APIs
Developer trading API with commission-free multi-leg options, paper trading and market data.
From $99/moDetails →
Massive (formerly Polygon.io)
Market data APIs for options, stocks and more; polygon.io now redirects here.
From $29/mo
Visit Massive ↗Opens the official siteBest for
Developers building options apps or bots
Notable features
- Options data API plans from free to real-time
- Free Basic tier for trying the APIs
- Starter tier for aggregates
- Developer tier for historical data
- Advanced tier for real-time data
Pricing notes
Options Starter $29/mo, Developer $79, Advanced $199 (monthly); annual saves 20%.
Alternatives to Massive (formerly Polygon.io)
Historical and real-time options, futures and volatility data via API, plus IVolLive analytics.
From $63/moDetails →
optionsDXFree tier
Options Data APIs
Historical options data downloads, including SPX chains, for backtesting.
Price not listedDetails →
ThetaDataFree tier
Options Data APIs
Real-time and historical options, stock and index data with tick-level NBBO quotes.
From $40/moDetails →
FlashAlphaFree tier
Volatility & GEX Tools
Options analytics API for GEX, DEX, vanna, charm, vol surfaces and max pain, with an MCP server.
From $63/moDetails →
gexbotFree tier
Volatility & GEX Tools
Live options analytics: GEX by OI and volume, classified levels and orderflow, with platform integrations.
From $50/moDetails →