Historical Stock Data APIs
Historical stock data APIs differ mainly in depth and granularity. EOD Historical Data focuses on end-of-day prices for stocks, ETFs and forex across many exchanges, while StockData adds intraday bars, splits and dividends for US stocks. Alpha Vantage returns time series with technical indicators, and TradeWatch sells OHLC history on a paid plan. All of them need an API key. Free Stock APIs →
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
Alpha VantageGlobal stock, forex, and crypto market data with time series, quotes, fundamentals, and technical indicators. Finance & Commerce › Stock Market | Freemium | API key | JSON | <100/day | Live |
EOD Historical DataEnd-of-day and historical prices for stocks, ETFs and forex across 60 exchanges. Finance & Commerce › Stock Market | Freemium | API key | JSON | <100/day | Live |
FinageReal-time and historical stock, forex, and crypto market data with a REST and WebSocket API. Finance & Commerce › Stock Market | Free trial | API key | JSON | — | Live |
FinFeedAPIReal-time and historical stock, currency, SEC filing, and prediction-market data via REST, WebSocket, and MCP. Finance & Commerce › Stock Market | Freemium | API key | JSON | — | Untested |
FinnhubReal-time and historical stock, forex, and crypto quotes plus company fundamentals. Finance & Commerce › Stock Market | Freemium | API key | JSON | — | Live |
MarketstackReal-time, intraday, and historical stock prices for 30,000+ tickers, plus SEC EDGAR filing data. Finance & Commerce › Stock Market | Freemium | API key | JSON | <100/day | Live |
Massive (formerly Polygon.io)Real-time and historical stock, options, index, forex and crypto market data. Finance & Commerce › Stock Market | Freemium | API key | JSON | 1k–10k/day | Live |
SiftingIOReal-time and historical prices for US stocks, forex, crypto, commodities, and DEX trades. Finance & Commerce › Stock Market | Freemium | API key | JSON | 100–1k/day | Live |
StockDataReal-time and historical US stock quotes, intraday/EOD data, splits, dividends and global market news. Finance & Commerce › Stock Market | Freemium | API key | JSON | 100–1k/day | Live |
TradeWatchReal-time and historical quotes, OHLC and fundamentals for forex, crypto, commodities, indices and stocks. Finance & Commerce › Stock Market | Paid | API key | JSON | — | Live |
TradierUS stock and options market data (quotes, chains, historical) plus brokerage trading via API. Finance & Commerce › Stock Market | Freemium | API key | JSON | — | Live |
Twelve DataReal-time and historical prices, forex, crypto and technical indicators across global markets. Finance & Commerce › Stock Market | Freemium | API key | JSON | 100–1k/day | Live |
Alpha VantageFreemiumLive
Global stock, forex, and crypto market data with time series, quotes, fundamentals, and technical indicators.
API key · JSON
<100/day
no machine-readable spec
EOD Historical DataFreemiumLive
End-of-day and historical prices for stocks, ETFs and forex across 60 exchanges.
API key · JSON
<100/day
llms.txt
FinageFree trialLive
Real-time and historical stock, forex, and crypto market data with a REST and WebSocket API.
API key · JSON
—
no machine-readable spec
FinFeedAPIFreemiumUntested
Real-time and historical stock, currency, SEC filing, and prediction-market data via REST, WebSocket, and MCP.
API key · JSON
—
llms.txt
FinnhubFreemiumLive
Real-time and historical stock, forex, and crypto quotes plus company fundamentals.
API key · JSON
—
no machine-readable spec
MarketstackFreemiumLive
Real-time, intraday, and historical stock prices for 30,000+ tickers, plus SEC EDGAR filing data.
API key · JSON
<100/day
llms.txt
Massive (formerly Polygon.io)FreemiumLive
Real-time and historical stock, options, index, forex and crypto market data.
API key · JSON
1k–10k/day
OpenAPI spec · llms.txt
SiftingIOFreemiumLive
Real-time and historical prices for US stocks, forex, crypto, commodities, and DEX trades.
API key · JSON
100–1k/day
MCP server · llms.txt
StockDataFreemiumLive
Real-time and historical US stock quotes, intraday/EOD data, splits, dividends and global market news.
API key · JSON
100–1k/day
no machine-readable spec
TradeWatchPaidLive
Real-time and historical quotes, OHLC and fundamentals for forex, crypto, commodities, indices and stocks.
API key · JSON
—
OpenAPI spec · llms.txt
TradierFreemiumLive
US stock and options market data (quotes, chains, historical) plus brokerage trading via API.
API key · JSON
—
no machine-readable spec
Twelve DataFreemiumLive
Real-time and historical prices, forex, crypto and technical indicators across global markets.
API key · JSON
100–1k/day
MCP server · llms.txt
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Choosing a Historical Stock Data API
Is there a free Historical Stock Data API?
Yes. EOD Historical Data, Alpha Vantage, StockData, FinFeedAPI, Finnhub and 5 others have a free tier alongside paid plans. See all free Stock APIs.
Which Historical Stock Data APIs work without an API key?
All of them need a key or account. EOD Historical Data, Alpha Vantage, StockData, FinFeedAPI, Finnhub and 5 others give one out free when you sign up.
Can I use Historical Stock Data APIs in a commercial project?
EOD Historical Data, Alpha Vantage, Finage, SiftingIO and Twelve Data restrict it, for example to non-commercial or attributed use, so read the terms first.
Which Historical Stock Data APIs work with AI agents?
SiftingIO and Twelve Data have an MCP server, so an AI agent can call them directly. Massive (formerly Polygon.io) and TradeWatch publish an OpenAPI spec for generating clients and tools.
Broader: Stock Market APIs · Finance & Commerce APIs
More in Stock Market: Stock Price APIs · Options Data APIs · ETF APIs · Fundamentals APIs · SEC Filings APIs · Earnings APIs · Insider Trading APIs