Alpaca Data API 2.0
Unlimited access to real-time US stock market data
Alpaca Data API 2.0 launched on May 28, 2021 with 317 votes, #53 of 3,505 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 5 years on.
In plain words
Alpaca Data API 2.0 provides unlimited access to real-time US stock market data. Designed for developers and traders, it integrates directly with the Alpaca platform to streamline market data access. The service offers continuous data feeds without usage restrictions, making it suitable for applications requiring constant market information for trading algorithms, analysis tools, and financial applications.
written from the facts on this page · September 2026
From the sources
Alpaca launches DATA API for unlimited US stock market data. Data is the backbone of API access to the market, and we have established our very own data product that integrates seamlessly with the Alpaca platform.
Developer-first market data API with up to 10,000 API calls/min and over 7 years of historical data.
For any ticker down to the second. True event-based streaming market data via Websockets, instead of being limited to pulling minute or daily bar data. Build sophisticated trading strategies using a suite of order types including OCO, IOC, MOO, and MOC. Allowing you to develop and test your strategies with confidence. Gives you access to any minute/hour/daily bar data to support your trading strategies. With our global support team, we’re here to help you choose the best plan for your goals. Contact us and one of our team members will help you find the right plan. Brokerage services are provided by Alpaca Clearing, member FINRA / SIPC , a wholly-owned subsidiary of AlpacaDB, Inc. Brokerage…from alpaca.markets
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