Alpaca Securities LLC is a US-based broker offering commission-free API stock trading. Known for its robust API tools for algorithmic trading, Alpaca Trading provides zero-commission stock and ETF trading, along with advanced charting tools accessible through a web platform. This makes it an excellent choice for users willing to learn how to utilize the API and related programs. However, customer support is limited, relying heavily on community forums such as GitHub and Slack. Additionally, deposits and withdrawals are only possible via bank transfer. The product selection is limited to US stocks and ETFs, making it more suitable for beginner investors.