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About Massive
What Does Massive Do?
Massive is a stock market API that delivers real-time and historical market data from US exchanges, dark pools, OTC markets, options, indices, currencies, and futures. It solves the problem of expensive, hard-to-access financial data by offering a developer-friendly platform with standardized JSON/CSV outputs, client libraries for Python, JavaScript, Go, and Java, and multiple access methods via RESTful/WebSocket APIs, SQL queries, or S3 flat files.
Who Is Massive For?
Massive is designed for builders, founders, scholars, dabblers, and dreamers who need reliable market data without institutional barriers. It's ideal for developers building trading apps, quant researchers analyzing historical patterns, fintech startups creating financial products, and individual investors seeking affordable data. It is not for casual retail investors who only need delayed quotes or pre-packaged charting tools.
Real Use Cases
Use Massive to backtest trading strategies with 20+ years of historical stock data, build real-time dashboards using WebSocket streams, or automate portfolio rebalancing with minute aggregates. Options traders can access complete options chain data with Greeks and implied volatility. Researchers can download large datasets via flat files for machine learning models.
Key features
- Real-Time & Historical Stock Data — Access data from all US exchanges, dark pools, and OTC markets since 2003, with over 350 billion data points.
- Options & Futures Coverage — Complete options chain data with Greeks and implied volatility, plus futures from CME, CBOT, NYMEX, and COMEX.
- Multiple Access Methods — Choose from RESTful/WebSocket APIs, SQL queries, or S3 flat files to match your workflow.
- Client Libraries — Official libraries for Python, JavaScript, Go, and Java simplify integration and reduce development time.
- Standardized JSON & CSV — Data is available in both formats, making it easy to integrate into any application.
- Tutorials & Examples — Step-by-step guides and code examples help you get started quickly, even without deep market data experience.
- Direct Exchange Access — Massive is located in the datacenter with direct fiber cross-connects to exchanges, ensuring low latency and reliability.
SaaSpartout Score
7.5
/10
Editorial score from our review methodology — not user ratings.
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Massive Pricing
Massive pricing: from $0/mo.
For comparison: the median starting price in Analytics & Data is $39/month, measured across 274 tools we track. See the full SaaS Pricing Index →
Stocks Basic (Free)
$0/month — Includes all US stocks tickers, 5 API calls/minute, 2 years historical data, 100% market coverage, end-of-day data, reference data, corporate actions, technical indicators, minute aggregates, flat files, WebSockets, snapshots, second aggregates, trades, and quotes. Individual use only.
Stocks Starter
$29/month — All Stocks Basic features plus unlimited API calls, 5 years historical data, and 15-minute delayed data. Individual use.
Stocks Developer
$79/month — All Stocks Starter features plus 10 years historical data. Individual use.
Stocks Advanced
$199/month — Includes Financials & Ratios, real-time stock data, 20+ years of history, and WebSockets. Individual use only. Save 20% with annual billing.
Financials & Ratios
$29/month — Company financials and key ratios without a stocks subscription. Individual use.
Partner Data (Benzinga, TMX, ETF Global)
$99/month per dataset — Premium datasets from industry-leading partners, all through a single Massive API.
Frequently asked questions
Is Massive free to use?
Yes, Massive offers a free Stocks Basic plan at $0/month that includes all US stock tickers, 2 years of historical data, and 100% market coverage with limited API calls.
How much does Massive cost?
Pricing starts at $0/month for Stocks Basic. Paid plans range from $29/month (Stocks Starter) to $199/month (Stocks Advanced). Partner datasets cost $99/month per dataset. Annual billing offers a 20% discount.
Who is Massive best for?
Massive is best for developers, quant researchers, fintech founders, and individual traders who need reliable, low-latency market data for building custom financial applications or algorithms. It's not designed for casual investors seeking basic charts.
What data does Massive provide?
Massive provides real-time and historical data for US stocks (32,345+ tickers since 2003), options (1.67M+ contracts since 2014), indices (11,409+ since 2023), currencies (1,750+ pairs since 2009), and futures (361K+ contracts since 2017), all with direct exchange connections.
What are the top alternatives to Massive?
Top alternatives include Polygon.io, Tiingo, IEX Cloud, Alpha Vantage, and Yahoo Finance API. These also offer stock market data via API, but vary in pricing, data depth, and asset class coverage.
Does Massive offer a free trial?
Massive's free Stocks Basic plan acts as a free trial, letting you explore end-of-day data and basic features at no cost. You can upgrade to paid plans anytime for expanded access.
