Alpha Vantage is a data service that offers a free entry level data service and several premium paid membership levels. To use Alpha Vantage, you need to sign up and get a free API Key. The free data service has some basic limits. There can be 5 calls to the Alpha Vantage server per minute and a total of 500 calls per day. This makes the downloading a little slow but the free membership level still works well. Below are instructions for getting an Alpha Vantage API Key.
To sign up for Alpha Vantage and get a free API Key open the web page at the link below.
Alpha Vantage Signup
On the Alpha Vantage home page click ‘GET YOUR FREE API KEY TODAY’.
The next web page is titled Claim Your API Key. Fill out the form below and click the button, GET FREE API KEY.
After a moment the API Key will appear at the the bottom of the page. Copy the API Key top a safe place.
The link below is for the web page to subscribe to a Premium Alpha Vantage service.
Alpha Vantage Premium