Options data APIs

Institutional historical market data, including options trades, NBBO quotes and minute bars.

Stock, options and economic data API with free and premium tiers.

Cboe's store for historical options data: end-of-day, interval summaries and trade data.

cvforge research app (free download) with live options and market data plans.

Usage-based market data API with tick-level options and futures data from exchanges.

Historical end-of-day options data files for US equities and indexes.

Financial data APIs, including a US stock options API with Greeks and implied volatility.

Historical intraday and tick data for stocks, futures and options, sold as downloadable datasets.

Options analytics API for Greeks, implied volatility surfaces and exposure data, with a free tier.

Downloadable end-of-day historical options data files, by history length and detail level.

Financial data APIs including options prices, Greeks and unusual activity, for individuals and businesses.

Market data API and Google Sheets add-on with real-time and historical options chains.

Excel add-in with stock and options data functions, option chains and analytics.

Market data APIs (formerly Polygon.io) for US options, stocks, indices and more.

Historical options datasets with Greeks and IV, including some free datasets.

Options data API with smoothed implied volatility, history back to 2007 and tools APIs.

Options and stock market data API with tick-level history and real-time streaming for individuals.

Programmatic access to Unusual Whales options flow, dark pool, GEX and market data via REST, WebSocket or MCP.