Massive vs Alpha Vantage
Massive is built for production apps: real-time streaming, tick-level trades and quotes, flat files, and no call limits on paid plans. If you only make a few calls a day for non-US stocks or commodities, Alpha Vantage covers that.
Massive leads on
- Free plan
- Price
- Streaming
- Tick data
- Bulk downloads
- Commercial use
Alpha Vantage leads on
- Options history
- Non-US stocks
- Technical indicators
What is Massive
Massive is a market data API for US stocks, options, indices, and futures, plus forex and crypto. It delivers data over REST, WebSockets, S3 flat files, and an MCP server.
What is Alpha Vantage
Alpha Vantage is a REST API for stock, forex, crypto, fundamentals, and economic data, with paid plans priced by requests per minute.
Choose Massive if
- You stream prices instead of polling.
- You need every trade and NBBO quote, not just bars.
- You make more than 25 requests a day.
- You want commercial use without a sales call.
Choose Alpha Vantage if
- You need stocks from exchanges outside the US, such as LSE, TSX, or XETRA.
- You want commodity prices in the same API.
- You want 50+ technical indicators calculated on the server.
- You need US options history back to 2008.
Feature by feature
| Feature | Massive | Alpha Vantage |
|---|---|---|
| Free plan | Massive leads: Free plan per market: end-of-day data, 2 years of history, 5 calls/min | 25 requests per day[1] |
| Price | Massive leads: $29, $79, or $199/mo per market, with unlimited API calls on every paid plan | $49.99 to $249.99/mo, priced by requests per minute (75 to 1,200)[1] |
| Streaming | Massive leads: WebSockets on every paid plan | REST only. No streaming listed[2] |
| Tick data | Massive leads: Every trade and NBBO quote, with nanosecond timestamps | No trade-by-trade or quote history endpoint[2] |
| Real-time options | All US options (OPRA). Real-time on Options Advanced, $199/mo | Needs the 600 requests/min plan, $199.99/mo[1] |
| Options history | 5+ years on Options Advanced | Alpha Vantage leads: Back to 2008 on any premium plan[2] |
| Non-US stocks | US markets only (forex and crypto are global) | Alpha Vantage leads: Global, including LSE, TSX, XETRA, BSE, Shanghai, and Shenzhen[2] |
| Fundamentals | Financials and ratios on Stocks Advanced or a $29/mo add-on. SEC filings, insider trades, 13-F holdings, short interest, and economic data on every Stocks plan, including the free one. Analyst estimates, Benzinga news ($99/mo), and ETF holdings as add-ons | Statements, earnings, dividends, calendars, economic indicators, and commodities[2] |
| Technical indicators | SMA, EMA, MACD, and RSI endpoints | Alpha Vantage leads: 53 server-side indicators[2] |
| Bulk downloads | Massive leads: S3-compatible flat files on every paid plan | No flat files. Bulk quotes take up to 100 symbols per request[2] |
| AI agents | Official MCP server at mcp.massive.com | Official MCP server[1] |
| Commercial use | Massive leads: Self-serve Business plans: Currencies $999/mo, Options $1,999/mo, Stocks $2,499/mo | Contact sales. No published price[3] |
Where they differ
Rate limits set the price
Alpha Vantage prices its plans by how many requests you can make: 25 a day free, then 75 to 1,200 a minute on paid plans. Every Massive paid plan has unlimited calls, so you can page through ten years of minute bars without code to slow your requests down.
Streaming and tick data
Alpha Vantage is REST only, with bars and latest quotes. Massive streams trades, quotes, and aggregates over WebSockets, and keeps every US stock trade and NBBO quote back to 2003.
Outside the US
For stocks listed outside the US, such as on the LSE or TSX, Alpha Vantage may be the better choice. It also has commodities. Massive covers US stocks, options, indices, and futures, plus global forex and crypto.
Pricing
Prices in USD per month, from each vendor's public pricing pages on October 23, 2026. Check Alpha Vantage's site before you buy.
| What you need | Massive | Alpha Vantage |
|---|---|---|
| Daily bars for 500 tickers, once a day | Stocks Starter $29/mo (unlimited calls) | $49.99/mo (75 requests/min). The free plan allows 25 a day[1] |
| Real-time US stock prices | $199/mo (Stocks Advanced), streaming included | Premium from $49.99/mo, personal use only, REST polling[1][2] |
| Commercial use in your product | Stocks Business $2,499/mo, self-serve | Contact sales[3] |
Moving from Alpha Vantage
Example: daily AAPL bars
curl "https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=AAPL&outputsize=full&apikey=YOUR_API_KEY"curl "https://api.massive.com/v2/aggs/ticker/AAPL/range/1/day/2024-01-02/2024-01-31" \
-H "Authorization: Bearer YOUR_API_KEY"Bar fields
| Field | Alpha Vantage | Massive |
|---|---|---|
| Timestamp | Date string key, such as "2024-01-02" | t (Unix milliseconds, bar start) |
| Open | "1. open" (string) | o |
| High | "2. high" (string) | h |
| Low | "3. low" (string) | l |
| Close | "4. close" (string) | c |
| Volume | "5. volume" (string) | v |
| VWAP | None | vw |
| Trade count | None | n |
- Alpha Vantage has no date range parameters. outputsize=full returns 20+ years and needs a premium key, and you filter dates in your code. Massive takes a from and to date in the path.
- Alpha Vantage returns values as strings in an object keyed by date. Massive returns an array of bars with numbers.
- Replace polling loops with a WebSocket subscription to wss://socket.massive.com/stocks.
Switch with an agent
Paste this into Claude Code, Cursor, Codex, or any coding agent. It finds your Alpha Vantage calls and ports them to Massive.
Find every place my project calls Alpha Vantage. Switch those calls to the Massive REST API. Read https://massive.com/docs/llms.txt for endpoints and auth, and read the API key from the MASSIVE_API_KEY environment variable. Keep my function signatures and data shapes the same, and list anything Massive does not cover.
The ported code calls the REST API directly. The Massive MCP server is optional, for checking real responses while the agent works. Massive also publishes skills and plugins for coding agents.
Questions
- What are the Alpha Vantage free limits?
- 25 requests a day. Paid plans run from 75 to 1,200 requests a minute, at $49.99 to $249.99/mo. Massive allows 5 calls a minute free and has no call limit on paid plans.
- Can I get real-time US stock data from Alpha Vantage for free?
- No. Real-time and 15-minute delayed US data are premium, from $49.99/mo, for personal use.
- Massive vs Alpha Vantage: which should I use?
- A few calls a day or global stocks: Alpha Vantage may be a better fit. Streaming, tick data, flat files, or heavy call volume: Massive.
- Is Massive more expensive than Alpha Vantage?
- Not at the entry level. Massive paid plans start at $29/mo per market, 15 minutes delayed, and real-time stocks are $199/mo. Alpha Vantage premium starts at $49.99/mo and scales with requests per minute.
Sources
Alpha Vantage details come from Alpha Vantage's own public pages, checked on October 23, 2026, and may have changed since. Massive details come from the Massive plans API on October 22, 2026. "Not listed" means we did not find it on Alpha Vantage's site. Massive wrote this page. If something is wrong, tell us and we will fix it. Alpha Vantage is a trademark of its owner, and Massive is not affiliated with Alpha Vantage.
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