Massive

Stocks, options & indices market data via Massive.com financial data API. Access real-time and historical prices, quotes, trades, and aggregates for equities, options contracts, ETFs, FX, crypto, futures, and more. Massive brings institutional-grade market data directly into Claude. Stocks & equities: Real-time stock prices, historical stock data, tick-level trades and quotes, OHLC aggregates and candlestick bars, market snapshots, and stock ticker reference data for all US equities and ETFs, sourced from all US exchanges. Options: Options contracts data including options chains, options prices, quotes, trades, open interest, and historical options data across the full US listed options market. Futures: Futures market data including futures contracts, futures prices, trades, quotes, and historical futures data across major products. Indices: Real-time and historical index data including index values and aggregates for major market indices. Forex & crypto: Currency pairs, exchange rates, crypto prices, and historical FX and cryptocurrency market data. Beyond prices, pull company fundamentals and financials, corporate actions like dividends and stock splits, market news, technical indicators (SMA, EMA, MACD, RSI), and market status. Ask Claude natural-language questions — "show me NVDA's opening cross" or "chart AAPL's daily bars this quarter" — and get answers backed by licensed, exchange-sourced market data. Built for traders, quants, analysts, and developers who need accurate stock market data, equities data, and multi-asset market data inside Claude.