Massive vs Finnhub
Massive covers US options and futures, bills monthly, and publishes its commercial prices. Every Finnhub self-serve plan is personal use only. If you only need 30+ years of financial statements or alternative data, Finnhub specializes in that.
Massive leads on
- Price
- Unlimited usage
- Options and futures
- Commercial use
Finnhub leads on
- Alternative data
- Non-US stocks
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 Finnhub
Finnhub is a financial data API with separately priced modules for US market data, forex, crypto, and fundamentals, plus alternative data such as ESG and congressional trading.
Choose Massive if
- You need US options or futures data.
- You want to pay month to month.
- You plan to show the data to customers and want a published price.
- You want unlimited API calls, not a per-minute cap.
Choose Finnhub if
- You need 30+ years of financial statements or 20+ years of analyst estimates.
- You use alternative data such as ESG, patents, lobbying, or congressional trading.
- You need bond data from FINRA TRACE.
- You want a free plan with 60 calls per minute.
Feature by feature
| Feature | Massive | Finnhub |
|---|---|---|
| Price | Massive leads: $29, $79, or $199/mo per market, with unlimited API calls on every paid plan | Separate modules. US market data $49.99 or $129.99/mo billed quarterly, $199.99/mo billed annually. Fundamentals $50 or $200/mo per market[2][3] |
| Free-tier call rate | Free plan per market: end-of-day data, 2 years of history, 5 calls/min | Finnhub leads: 60 calls/min, US coverage, WebSocket for 50 symbols[1] |
| Rate limits | Massive leads: Unlimited on every paid plan | 150 to 900 calls/min, with a 30 calls/sec cap on every plan[2][5] |
| Tick data | 20+ years, with trades and quotes back to 2003 | 5, 10, or 30+ years of tick data, depending on the plan[2] |
| Options and futures | Massive leads: US options and CME, CBOT, NYMEX, and COMEX futures | Not listed[5] |
| 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 (30+ years on the $200/mo plan), ownership, and SEC filings. Estimates are a separate module[5][3] |
| Alternative data | News with ticker sentiment, short interest, short volume, and insider filings (Forms 3 and 4). European consumer spending as an add-on | Finnhub leads: ESG, supply chain, patents, lobbying, congressional trading, and sentiment[5] |
| Non-US stocks | US markets only (forex and crypto are global) | Finnhub leads: International stocks. LSE is 15-min delayed, most others end-of-day[5] |
| Streaming | WebSockets on every paid plan | WebSocket, one connection per API key[5] |
| AI agents | Official MCP server at mcp.massive.com | MCP server in ChatGPT, Claude, and Gemini Enterprise[5] |
| Commercial use | Massive leads: Self-serve Business plans: Currencies $999/mo, Options $1,999/mo, Stocks $2,499/mo | Every self-serve plan is personal use. Commercial use is Enterprise only, through sales[4] |
Where they differ
Personal use vs commercial use
Every Finnhub plan with a published price is personal use. Showing the data to customers needs an Enterprise agreement, price on request. Massive Business plans for stocks, options, and currencies list their prices, so you know the cost before you build.
Billing terms
Finnhub Basic and Standard bill quarterly. Professional bills annually. Each data domain is its own module. Massive bills monthly, with a cheaper annual option.
Alternative data
For alternative data, Finnhub may be the better choice: ESG, supply chain, patents, lobbying, and congressional trading. Massive covers financials and ratios, SEC filings, insider trades, and short interest, with analyst estimates as an add-on.
Pricing
Prices in USD per month, from each vendor's public pricing pages on October 23, 2026. Check Finnhub's site before you buy.
| What you need | Massive | Finnhub |
|---|---|---|
| US stock market data, personal use | $29 to $199/mo, billed monthly | $49.99 or $129.99/mo billed quarterly, $199.99/mo billed annually[2] |
| Commercial use in your product | Stocks Business $2,499/mo, self-serve | Enterprise, contact sales[4] |
| Every data domain in one plan | One plan per market, from $29/mo each | All-In-One at $3,500/mo, billed annually, through sales[1] |
Moving from Finnhub
Example: daily AAPL bars for January 2024
curl "https://finnhub.io/api/v1/stock/candle?symbol=AAPL&resolution=D&from=1704153600&to=1706745600" \
-H "X-Finnhub-Token: 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 | Finnhub | Massive |
|---|---|---|
| Timestamp | t[] (Unix seconds) | t (Unix milliseconds, bar start) |
| Open | o[] | o |
| High | h[] | h |
| Low | l[] | l |
| Close | c[] | c |
| Volume | v[] | v |
| VWAP | None | vw |
| Trade count | None | n |
- Finnhub marks stock candles as premium, so the free plan returns 403 for this request. The Massive free plan includes daily and minute bars.
- Finnhub returns parallel arrays, one per field. Massive returns one object per bar.
- Finnhub takes Unix seconds for from and to. Massive takes dates in the path.
Switch with an agent
Paste this into Claude Code, Cursor, Codex, or any coding agent. It finds your Finnhub calls and ports them to Massive.
Find every place my project calls Finnhub. 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
- Why does Finnhub stock candle data return 403 on the free plan?
- Finnhub marks stock candles as premium, so the free plan does not include them. Massive includes daily and minute bars on its free plan, with 2 years of history.
- Massive vs Finnhub: which is better?
- Finnhub may be a better fit for long fundamentals history and alternative data. Massive for US options and futures, monthly billing, and commercial plans with published prices.
- Is Finnhub free?
- Yes: 60 calls a minute, US coverage, and WebSocket for 50 symbols. Personal use only.
- How much historical data does Finnhub have?
- It depends on the plan: 10, 25, or 40+ years of daily bars, and 5, 10, or 30+ years of tick data. Massive Stocks Advanced goes back to 2003.
- Can I use Finnhub data in a commercial app?
- Not on a self-serve plan. Commercial use is Enterprise only, through sales.
Sources
Finnhub details come from Finnhub'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 Finnhub's site. Massive wrote this page. If something is wrong, tell us and we will fix it. Finnhub is a trademark of its owner, and Massive is not affiliated with Finnhub.
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