Alpaca Data API - Free real-time stock market data API
Alpaca Data API is your new go-to data API for building trading apps & algorithmic trading strategies and is free to use. It provides real-time stock price data with up to 99.95% price accuracy compared to well-known expensive consolidated market data feeds.
Alpaca API for Algorithmic Trading - Commission-free short selling & margin trading w/ 3.75% rate
Alpaca Trading API is a simple REST API that allows you to buy, sell, and short U.S. stocks with zero commissions with pre market & after hours trading access and business account on-boarding. Learn more at https://alpaca.markets/algotrading