What is an API in programming?

If you’re a programmer, you’ve probably heard the term API before. Or, if you’re new to this term, keep reading to find out what an API is in programming and how it’s used.

APIs are used in web applications, financial institutions, and video games to name a few. Let’s explore what an API is in programming and how it can be used.

Read also: Apa Itu RAD (Rapid Application Development Model)?

What are APIs?

API stands for Application Programming Interface. APIs provide a way for separate programs to interact with each other. The API determines what requests can be made, how requests are made, and allows data to be exchanged between different software applications.

The API is available in three forms: public, private, and partner. The public API (or open API) is publicly accessible by any developer. Use of the public API has some limitations and may be free or commercial. Private APIs are used exclusively within a company or organization. While the Partner API is only available to certain business partners, it is most often used to facilitate software integration between two different businesses.

You should know that the term “API” actually has nothing to do with the web, because the term existed before the web. It’s kind of co-opted to mean “web service call.” But traditionally, the notion of API is not. But more to do with the features offered by the operating system.

What is the purpose of API development?

As the number of applications available on various platforms increases, each platform requires data integration. Where later the data on the web with the data on the mobile application must be the same, so that there is no duplication of data on two different platforms. Therefore, an API has been created that aims to simplify the data exchange process between embedded applications and speed up the development process by providing separate functions so that developers do not need to create similar features.

How do I use the API?

APIs are used in a variety of categories, such as database APIs, remote APIs, and web APIs. You’ve probably interacted with the web API multiple times while browsing your smartphone or computer. Web APIs exchange requests and data using the HTTP protocol.

Travel booking websites such as Traveloka and Booking.com use web APIs to collect flight and destination data for their customers. The convenience of the web API allows you to confirm the availability of hotel rooms and length of stay in real time by changing hotel requests and data instantly.

APIs can also allow users to securely access external data and functionality. With more than 24,000 APIs available, users can now take advantage of the functionality of applications such as Google Translate without having to re-enter complex and lengthy code to build the application.


So what is an API? API is software that allows developers to integrate and allow two different applications to connect simultaneously. In short, APIs allow applications to communicate with each other.

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