Securities brokers traditionally generate revenue in multiple ways including charging trading commissions, marking up margin lending rates and stock loan, keeping interest on cash deposits, receiving payment for order flow by routing orders to market makers, and marking up the data feed subscription.

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About Alpaca - Documentation | Alpaca
Alpaca API lets you build and trade with real-time market data for free.

For a full list of brokerage fees, please see Alpaca Securities Brokerage Fee Schedule listed here.


Commissions Disclosure: Commission-Free trading means that there are no commission charges for Alpaca self-directed individual cash brokerage accounts that trade U.S. listed securities through an API. Relevant SEC and FINRA fees may apply.