US Stock Trading for Everyone

Execute your trading algos commission-free from anywhere in the world. Fund your account with no minimum deposit and start trading with as little as $1.

Sign up for free
Simplified onboarding & no minimum deposits
Access local and international payment options to fund your account with no minimum balance.
Commission-free API
Send in thousands of trades at a time as you want with our zero-commission Trading API.
Fractional trading
Start investing with as little as $1 into over 2,000 US equities and ETFs.
Real-time market data
Access true event-based market data streaming via Websockets with nanosecond precision.
Testing environment
Test your work in our paper environment before launching to production. Paper API simulates a real-time stock market environment.
Order Types
Build sophisticated strategies using a suite of order types including OCO, ICO, MOO and MOC.
Active Global Community
Join thousands of traders and developers building on Alpaca APIs.
Live Support
Alpaca offers dedicated and trained support to answer all your trading and API questions.
Integrate Your Favorite Trading Apps
Alpaca integrations are versatile and powerful. Connect with TradingView and MetaTrader5 via our integrations page.
Want to build a Trading App?
Broker API is a suite of APIs that enables you to open customer accounts, offer commission-free trading, and manage the customer experience, while Alpaca manages the US brokerage compliance.
Broker API

Registered securities broker

Alpaca Securities LLC is a member of Financial Industry Regulatory Authority, Inc. (FINRA).
You can check the background of Alpaca Securities on FINRA’s BrokerCheck.
Alpaca Securities is also a member of SIPC - securities in your account are protected up to $500,000.
For details, please visit