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# Massive

> Massive provides financial market data for stocks, options, indices, futures, forex, and crypto through a REST API, WebSocket streams, and S3 flat files.

## Getting started

Massive needs an API key. If the user doesn't have one (or you get a 401),
give them the signup link to register themselves:
https://massive.com/dashboard/signup

Their key is at https://massive.com/dashboard/keys. Have the user put it in the
MASSIVE_API_KEY env var and read it from there; don't ask them to paste
the key into chat or hardcode it.

## AI Tools

Connect AI agents and assistants to Massive data.

- [Massive MCP server](https://mcp.massive.com/): Remote server for MCP clients. The user signs in over OAuth, with nothing to install
- [ChatGPT Setup](https://massive.com/docs/ai-tools/clients/chatgpt.md): Connect Massive to ChatGPT
- [Claude Code Setup](https://massive.com/docs/ai-tools/clients/claude-code.md): Connect Massive to Claude Code
- [Claude Desktop Setup](https://massive.com/docs/ai-tools/clients/claude-desktop.md): Connect Massive to Claude Desktop
- [Codex Setup](https://massive.com/docs/ai-tools/clients/codex.md): Connect Massive to Codex
- [Cursor Setup](https://massive.com/docs/ai-tools/clients/cursor.md): Connect Massive to Cursor
- [Gemini CLI Setup](https://massive.com/docs/ai-tools/clients/gemini-cli.md): Connect Massive to Gemini CLI
- [GitHub Copilot Setup](https://massive.com/docs/ai-tools/clients/github-copilot.md): Connect Massive to GitHub Copilot
- [Grok Setup](https://massive.com/docs/ai-tools/clients/grok.md): Connect Massive to Grok
- [AI Tools Quickstart](https://massive.com/docs/ai-tools/quickstart.md): AI Tools Quickstart Guide
- [x402 Payments](https://massive.com/docs/ai-tools/x402.md): Buy US stock data per request over the x402 protocol, with no Massive account

## Flat Files

Bulk historical market data, delivered as daily files over S3.

- [Day Aggregates](https://massive.com/docs/flat-files/crypto/day-aggregates.md): Candlesticks with open, high, low, close, and volume at per day granularity across an expansive set of crypto pairings as a daily downloadable S3 file
- [Minute Aggregates](https://massive.com/docs/flat-files/crypto/minute-aggregates.md): Candlesticks with open, high, low, close, and volume at per minute granularity across an expansive set of crypto pairings as a daily downloadable S3 file
- [Crypto Overview](https://massive.com/docs/flat-files/crypto/overview.md): Massive provides comprehensive historical cryptocurrency market data through downloadable CSV Flat Files
- [Trades](https://massive.com/docs/flat-files/crypto/trades.md): Tick-level trades with nanosecond timestamps across an expansive set of crypto pairings, made available as a daily downloadable S3 file
- [Day Aggregates](https://massive.com/docs/flat-files/forex/day-aggregates.md): Candlesticks with open, high, low, close, and volume at per day granularity for over 1,750+ currency pairs, made available as a daily downloadable S3 file
- [Minute Aggregates](https://massive.com/docs/flat-files/forex/minute-aggregates.md): Candlesticks with open, high, low, close, and volume at per minute granularity for over 1,750+ currency pairs, made available as a daily downloadable S3 file
- [Forex Overview](https://massive.com/docs/flat-files/forex/overview.md): Massive provides extensive historical forex market data via downloadable CSV Flat Files
- [Quotes](https://massive.com/docs/flat-files/forex/quotes.md): Global foreign exchange rate quotes from major institutions for over 1,750+ currency pairs, made available as a daily downloadable S3 file
- [Minute Aggregates - CBOT](https://massive.com/docs/flat-files/futures/minute-aggregates/cbot.md): Candlestick data for CBOT futures with minute-by-minute open, high, low, close, and volume aggregated from all trades
- [Minute Aggregates - CME](https://massive.com/docs/flat-files/futures/minute-aggregates/cme.md): Candlestick data for CME futures with minute-by-minute open, high, low, close, and volume aggregated from all trades
- [Minute Aggregates - COMEX](https://massive.com/docs/flat-files/futures/minute-aggregates/comex.md): Candlestick data for COMEX futures with minute-by-minute open, high, low, close, and volume aggregated from all trades
- [Minute Aggregates - NYMEX](https://massive.com/docs/flat-files/futures/minute-aggregates/nymex.md): Candlestick data for NYMEX futures with minute-by-minute open, high, low, close, and volume aggregated from all trades
- [Futures Overview](https://massive.com/docs/flat-files/futures/overview.md): Massive provides comprehensive historical U.S. futures market data through downloadable CSV Flat Files
- [Quotes Aggregates - CBOT](https://massive.com/docs/flat-files/futures/quotes/cbot.md): Top-of-book quotes with nanosecond timestamps for CBOT futures, delivered as a daily downloadable S3 file
- [Quotes Aggregates - CME](https://massive.com/docs/flat-files/futures/quotes/cme.md): Top-of-book quotes with nanosecond timestamps for CME futures, delivered as a daily downloadable S3 file
- [Quotes Aggregates - COMEX](https://massive.com/docs/flat-files/futures/quotes/comex.md): Top-of-book quotes with nanosecond timestamps for COMEX futures, delivered as a daily downloadable S3 file
- [Quotes Aggregates - NYMEX](https://massive.com/docs/flat-files/futures/quotes/nymex.md): Top-of-book quotes with nanosecond timestamps for NYMEX futures, delivered as a daily downloadable S3 file
- [Session Aggregates - CBOT](https://massive.com/docs/flat-files/futures/session-aggregates/cbot.md): Candlestick data for CBOT futures with open, high, low, close, and volume aggregated from all trades during each trading session
- [Session Aggregates - CME](https://massive.com/docs/flat-files/futures/session-aggregates/cme.md): Candlestick data for CME futures with open, high, low, close, and volume aggregated from all trades during each trading session
- [Session Aggregates - COMEX](https://massive.com/docs/flat-files/futures/session-aggregates/comex.md): Candlestick data for COMEX futures with open, high, low, close, and volume aggregated from all trades during each trading session
- [Session Aggregates - NYMEX](https://massive.com/docs/flat-files/futures/session-aggregates/nymex.md): Candlestick data for NYMEX futures with open, high, low, close, and volume aggregated from all trades during each trading session
- [Trades Aggregates - CBOT](https://massive.com/docs/flat-files/futures/trades/cbot.md): Tick-level trades with nanosecond timestamps for CBOT futures, delivered as a daily downloadable S3 file
- [Trades Aggregates - CME](https://massive.com/docs/flat-files/futures/trades/cme.md): Tick-level trades with nanosecond timestamps for CME futures, delivered as a daily downloadable S3 file
- [Trades Aggregates - COMEX](https://massive.com/docs/flat-files/futures/trades/comex.md): Tick-level trades with nanosecond timestamps for COMEX futures, delivered as a daily downloadable S3 file
- [Trades Aggregates - NYMEX](https://massive.com/docs/flat-files/futures/trades/nymex.md): Tick-level trades with nanosecond timestamps for NYMEX futures, delivered as a daily downloadable S3 file
- [Day Aggregates](https://massive.com/docs/flat-files/indices/day-aggregates.md): Candlestick data for a diverse set indices with daily open, high, low, and close values aggregated from all ticks throughout the day
- [Minute Aggregates](https://massive.com/docs/flat-files/indices/minute-aggregates.md): Candlestick data for a diverse set indices with minute-by-minute open, high, low, and close values aggregated from all ticks throughout the day
- [Indices Overview](https://massive.com/docs/flat-files/indices/overview.md): Massive provides extensive historical index market data through downloadable CSV Flat Files
- [Values](https://massive.com/docs/flat-files/indices/values.md): A daily record of tick-by-tick values for a comprehensive set of indices including S&P, Nasdaq, Dow Jones, and more as a daily downloadable S3 file
- [Day Aggregates](https://massive.com/docs/flat-files/options/day-aggregates.md): Candlesticks with open, high, low, close, and volume at per day granularity from all U.S. options markets, made available as a daily downloadable S3 file
- [Minute Aggregates](https://massive.com/docs/flat-files/options/minute-aggregates.md): Candlesticks with open, high, low, close, and volume at per minute granularity from all U.S. options markets, made available as a daily downloadable S3 file
- [Options Overview](https://massive.com/docs/flat-files/options/overview.md): Massive provides extensive historical U.S. options market data through downloadable CSV Flat Files
- [Quotes](https://massive.com/docs/flat-files/options/quotes.md): Top of book quotes with nanosecond timestamps from all U.S. options markets including CBOE, NYSE, and NASDAQ, made available as a daily downloadable S3 file
- [Trades](https://massive.com/docs/flat-files/options/trades.md): Tick-level trades with nanosecond timestamps from all U.S. options markets including CBOE, NYSE, and NASDAQ, made available as a daily downloadable S3 file
- [Flat Files Quickstart](https://massive.com/docs/flat-files/quickstart.md): Flat Files Quickstart Guide
- [Day Aggregates](https://massive.com/docs/flat-files/stocks/day-aggregates.md): Candlesticks with open, high, low, close, and volume at per-day granularity across all U.S. equities, made available as a daily downloadable S3 file
- [Minute Aggregates](https://massive.com/docs/flat-files/stocks/minute-aggregates.md): Candlesticks with open, high, low, close, and volume at per minute granularity across all U.S. equities, made available as a daily downloadable S3 file
- [Stocks Overview](https://massive.com/docs/flat-files/stocks/overview.md): Massive provides comprehensive historical U.S. stock market data through downloadable CSV flat files
- [Quotes](https://massive.com/docs/flat-files/stocks/quotes.md): Top of book quotes with nanosecond timestamps from all major U.S. exchanges and darkpools, including NYSE, Nasdaq, Cboe, Finra, and more, made available as a daily downloadable S3 file
- [Trades](https://massive.com/docs/flat-files/stocks/trades.md): Tick level nanosecond timestamped trade data from all major U.S. exchanges and darkpools including NYSE, Nasdaq, Cboe, Finra, and more, made available as a daily downloadable S3 file

## REST API

REST endpoints for market data, reference data and other financial data sets.

- [Merchant Aggregates](https://massive.com/docs/rest/alternative/consumer-spending/merchant-aggregates.md): Aggregated European consumer spending data powered by [Fable Data](https://www.fabledata.com/)
- [Merchant Hierarchy](https://massive.com/docs/rest/alternative/consumer-spending/merchant-hierarchy.md): Reference data mapping merchants to parent companies, tickers, sectors, and industries across Fable's European consumer transaction panel
- [Alternative Data Overview](https://massive.com/docs/rest/alternative/overview.md): Access alternative datasets through our REST API
- [Custom Bars (OHLC)](https://massive.com/docs/rest/crypto/aggregates/custom-bars.md): Retrieve aggregated historical OHLC (Open, High, Low, Close) and volume data for a specified cryptocurrency pair over a custom date range and time interval in Coordinated Universal Time (UTC)
- [Daily Market Summary (OHLC)](https://massive.com/docs/rest/crypto/aggregates/daily-market-summary.md): Retrieve daily OHLC (open, high, low, close), volume, and volume-weighted average price (VWAP) data for all crypto tickers on a specified trading date
- [Daily Ticker Summary (OHLC)](https://massive.com/docs/rest/crypto/aggregates/daily-ticker-summary.md): Retrieve the opening and closing trades for a specific crypto pair on a given date
- [Previous Day Bar (OHLC)](https://massive.com/docs/rest/crypto/aggregates/previous-day-bar.md): Retrieve the previous trading day's open, high, low, and close (OHLC) data for a specified cryptocurrency pair
- [Condition Codes](https://massive.com/docs/rest/crypto/market-operations/condition-codes.md): Retrieve a unified and comprehensive list of trade and quote conditions from various upstream market data providers (e.g., CTA, UTP, OPRA, FINRA)
- [Exchanges](https://massive.com/docs/rest/crypto/market-operations/exchanges.md): Retrieve a list of known exchanges, including their identifiers, names, market types, and other relevant attributes
- [Market Holidays](https://massive.com/docs/rest/crypto/market-operations/market-holidays.md): Retrieve upcoming market holidays and their corresponding open/close times
- [Market Status](https://massive.com/docs/rest/crypto/market-operations/market-status.md): Retrieve the current trading status for various exchanges and overall financial markets
- [Crypto Overview](https://massive.com/docs/rest/crypto/overview.md): At Massive, we provide a comprehensive suite of cryptocurrency market data through standardized and intuitive APIs, offering extensive coverage of the global digital asset landscape
- [Full Market Snapshot](https://massive.com/docs/rest/crypto/snapshots/full-market-snapshot.md): Retrieve a comprehensive snapshot of the crypto market in a single response
- [Single Ticker Snapshot](https://massive.com/docs/rest/crypto/snapshots/single-ticker-snapshot.md): Retrieve the most recent market data snapshot for a single ticker
- [Top Market Movers](https://massive.com/docs/rest/crypto/snapshots/top-market-movers.md): Retrieve snapshot data highlighting the top 20 gainers or losers in the crypto market
- [Unified Snapshot](https://massive.com/docs/rest/crypto/snapshots/unified-snapshot.md): Retrieve unified snapshots of market data for multiple asset classes including stocks, options, forex, and cryptocurrencies in a single request
- [Exponential Moving Average (EMA)](https://massive.com/docs/rest/crypto/technical-indicators/exponential-moving-average.md): Retrieve the Exponential Moving Average (EMA) for a specified ticker over a defined time range
- [Moving Average Convergence/Divergence (MACD)](https://massive.com/docs/rest/crypto/technical-indicators/moving-average-convergence-divergence.md): Retrieve the Moving Average Convergence/Divergence (MACD) for a specified ticker over a defined time range
- [Relative Strength Index (RSI)](https://massive.com/docs/rest/crypto/technical-indicators/relative-strength-index.md): Retrieve the Relative Strength Index (RSI) for a specified ticker over a defined time range
- [Simple Moving Average (SMA)](https://massive.com/docs/rest/crypto/technical-indicators/simple-moving-average.md): Retrieve the Simple Moving Average (SMA) for a specified ticker over a defined time range
- [All Tickers](https://massive.com/docs/rest/crypto/tickers/all-tickers.md): Retrieve a comprehensive list of ticker symbols supported by Massive across various asset classes (e.g., stocks, indices, forex, crypto)
- [Ticker Overview](https://massive.com/docs/rest/crypto/tickers/ticker-overview.md): Retrieve comprehensive details for a single ticker supported by Massive that is active as-of a given date
- [Last Trade](https://massive.com/docs/rest/crypto/trades/last-trade.md): Retrieve the most recent trade details for a specified cryptocurrency pair, including price, size, timestamp, exchange, and conditions
- [Trades](https://massive.com/docs/rest/crypto/trades/trades.md): Retrieve comprehensive, tick-level trade data for a specified crypto ticker within a defined time range
- [Funding Conditions](https://massive.com/docs/rest/economy/funding-conditions.md): Daily U.S. overnight funding snapshot — one row per day showing how cheap or tight it is for banks and dealers to borrow cash overnight
- [Inflation](https://massive.com/docs/rest/economy/inflation.md): Retrieve key indicators of realized inflation, reflecting actual changes in consumer prices and spending behavior in the U.S. economy
- [Inflation Expectations](https://massive.com/docs/rest/economy/inflation-expectations.md): Retrieve a broad view of how inflation is expected to evolve over time in the U.S. economy
- [Labor Market](https://massive.com/docs/rest/economy/labor-market.md): Retrieve key labor market indicators from the Federal Reserve, including unemployment rate, labor force participation, average hourly earnings, and job openings data
- [Economy Overview](https://massive.com/docs/rest/economy/overview.md): Access macroeconomic data from the Federal Reserve and other official sources through our REST API
- [Treasury Yields](https://massive.com/docs/rest/economy/treasury-yields.md): Retrieve historical U.S. Treasury yield data for standard timeframes ranging from 1-month to 30-years, with daily historical records back to 1962
- [Custom Bars (OHLC)](https://massive.com/docs/rest/forex/aggregates/custom-bars.md): Retrieve aggregated historical OHLC (Open, High, Low, Close) and volume data for a specified Forex currency pair over a custom date range and time interval in Coordinated Universal Time (UTC)
- [Daily Market Summary (OHLC)](https://massive.com/docs/rest/forex/aggregates/daily-market-summary.md): Retrieve daily OHLC (open, high, low, close), volume, and volume-weighted average price (VWAP) data for all forex tickers on a specified trading date
- [Previous Day Bar (OHLC)](https://massive.com/docs/rest/forex/aggregates/previous-day-bar.md): Retrieve the previous trading day's open, high, low, and close (OHLC) data for a specified forex pair
- [Currency Conversion](https://massive.com/docs/rest/forex/currency-conversion.md): Retrieve real-time currency conversion rates between any two supported currencies
- [Exchanges](https://massive.com/docs/rest/forex/market-operations/exchanges.md): Retrieve a list of known exchanges, including their identifiers, names, market types, and other relevant attributes
- [Market Holidays](https://massive.com/docs/rest/forex/market-operations/market-holidays.md): Retrieve upcoming market holidays and their corresponding open/close times
- [Market Status](htt