DATA Alpha Vantage (free)
Backed by the prestigious Y Combinator and composed of a tight-knit community of researchers, engineers, and business professionals, Alpha Vantage Inc. is a leading provider of realtime and historical stock APIs as well as forex (FX) and digital/crypto currency data feeds. Our success is driven by rigorous research, cutting edge technology, and a disciplined focus on democratizing access to data.
To get started, browse through our API documentation to test drive our API library. Whenever you feel ready, claim your free API key and start exploring!
https://www.alphavantage.co
API Key CAKZA5FG99OAR1LJ