Alpaca is a commission free, API-first stock brokerage platform. With Alpaca, developers can manage capital, stocks, and algorithms in one integrated system. The Alpaca Trade API Track this API a REST-based interface that connects applications with a real-time brokerage service. The API is used to access account information, orders, positions, assets, and more. If you are looking for historical intraday data, you can obtain such data for free from: IEX you obtained all the free intraday stock data that you need through their API for free, the only downside is that, their data is not clean for all the time stamps. You’ll have to spend most of your time cleaning. Browse 31+ Best Stock Market and Brokerage APIs available on RapidAPI.com. Top Best Stock Market and Brokerage APIs include Alpha Vantage, Yahoo Finance, Robinhood Investments and more. Sign Up today for Free!