An API collection is further found on Postman. I've written about  how to use [APIs in python here.](obsidian://open?vault=Obsidian&file=Coding%20Tips%2FComputers%2FLanguages%2FPython%2FProjects%2FAPI%20Python) 

Think of APIs as another kind of protocol but one that just talks between applications instead of ssh-ing through terminal connecting to internet and doing all of the physical connecting stuff. 

Nowadays with Postman or a GET/POST request through terminal you can talk directly to the applications itself if they provide an API. 

Download Postman to explore and get started. 

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Here are some APIs for you to pull from: 
- API for [sentiment analysis ](http://help.sentiment140.com/ap)aggregating social media data
- API for movies! [The Open Movie Database ](https://www.omdbapi.com/)