By Mark 
Provide information site get key – alphavantage
There are many sources of information, but try this site(www.alphavantage.co). Some features are available for free.
They seem to be adding new indicators all the time – there was very little free at first, and now there’s a lot of data.
However, the frequency of the data and the important data will help you to trade actual stocks or coins, so if you are trading, I recommend paying for it.
Step 1. Home > Get Free API Key
Step 2. Claim API Key
Step 3. Get API Token Key
Step 4. Find the information you’re looking for.
Step 5. Python Code Copy & replace your Key
This completes the most basic steps for extracting data. Now you can take this key and try to extract a bunch of different data.
From now on, we’ll write code assuming we have this key.
Personally, I’ve seen data from a lot of places, but aside from Fred or Stocks, this seems to be the best site for the data you can get from Confucius.
In the past, I liked getting data by crawling yahoo or portal, but now I think it’s better to get data through REST API.