1. BASIC API ON WEBSITE

2. What Is an API, and Why Does It Matter?

3. API stands for application programming interface. As it’s a rather
complicated concept, let’s break it down by looking at each of its parts
Application
If you have a smartphone, you are well acquainted with what applications are,
i.e., the tools, games, social networks and other software that we use everyday.
Programming
Programming is how engineers create all the software that make our lives so
much easier.

4. Interface
An interface is a common boundary shared by two applications or programs that
allow both to communicate with one another.
So an API is essentially a way for programmers to communicate with a certain
application.

5. API Analogy
Every time you want to access a set of data from an application, you have to call
the API. But there is only a certain amount of data the application will let you
access, so you have to communicate to the operator in a very specific
language—a language unique to each application.
To help visualize this concept, imagine an API as the middleman between a
programmer and an application. This middleman accepts requests and,
if that request is allowed, returns the data. The middleman also informs
programmers about everything they can request, exactly how to ask for it and
how to receive it.

6. What Is an API Call?
Whenever a developer or tool requests information from an API, they need to
call (or, more technically speaking, create a request to) that API. Many open
APIs have strict limits on how many times people can make a call in order to
limit traffic and not overwhelm the API with requests.

7. Why Are APIs Important for Business?
Do you use an application that tells you what the current traffic looks like?
Or how about an app that shows when the next bus will be at your stop?
Most tools like these rely on open APIs to run and pull the most accurate data.
Those are both good examples of how open APIs might help you in your
everyday life, but here’s how they can help you in business.

8. 1. Businesses Create Apps With APIs
There are many businesses out there that build software and tools that rely on
pulling data from open APIs to help streamline a business process in some
new way. In fact, without APIs, Sprout, as we know it, would cease to exist.
2. Business People Use Those Apps
APIs are important for business because they allow programmers to build
amazing tools that help us do our jobs more effectively. A good example is this
 keyword tool that accesses Google’s search API to suggest keywords your
business should target.
3. Businesses Rely on Open APIs
APIs are also important for the businesses that provide them, because third-party 
developers build out applications that further the use of the company’s core
product. This saves the API provider both time and money. For example, before
Reddit came out with its own mobile app, it relied on other tools created by
companies looking to monetize that work.

9. https://youtu.be/rml1AOykz6o
Introduction to API Management on Microsoft Azure

11. URL
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