Different Kinds of API in programming

Table of Contents

In this article, we are talking about the application programming interface. We will define API and explain various types of APIs. Read this article to build a better understanding of this useful and universal tool.

What Is API?

An application programming interface or API defines the interactions between various software intermediaries. There are many different uses for API, and you do not need to be a developer or know anything about the backend website and app development to use API.

In the following, we will review different types of API as it pertains to specific industries and common uses.



API As an Abstraction Layer

Much like an abstraction layer, API often creates a more manageable format, even protecting information. API enables the backend facility to create an abstraction layer.

Integration through Public APIs

Public API is a publicly available application programming interface that any developer can use to connect and share information through different services.

Among the main benefits of integrating through public APIs, we define collaboration and stability. Collaboration means that utilizing public APIs offers the opportunity for extensive collaboration, and stability means considering that the foundation of most public APIs was built by tech prodigies. It is safe to assume that your API functions will be stable.

Web Services APIs

Essentially all web services are APIs as they take a complex stream of code and present it in an organized and easy-to-understand manner. However, all APIs are not web services.

So here is a question! Are there different types of APIs? The answer is yes. Keep reading to know more about APIs. We review four main types of APIs in use available and buildable depending on the intended use.

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Main Types of APIs


Four Main Types of APIs


  • Open types

These APIs are available to the public. While they are secure, the mechanisms can be accessed, added, and changed by anyone.

  • Internal types

Internal APIs are only available to internal systems. In order to use this type of API, you need specific rights or licenses.

  • Partner types

Partner APIs are not publicly available, but like internal APIs, they are only available to certain groups of users through authentication mechanisms.

  • Composite types

Composite APIs combine different data and service APIs. This type speeds up the process and enhances user interaction.

Examples of APIs

  • Java APIIt is composed of elements that help developers establish everyday tasks while increasing productivity.
  • Twitter APIIt lets third-party developers interact with available Twitter data and make alterations to the program.
  • DirectXIt is Microsoft’s API for managing several tasks in multimedia, programming games, and publishing videos. DirectX is composed of DirectDraw, Direct3D, DirectSound, DirectPlay, and DirectInput.


For many software development companies, APIs play a significant role in extending functionality on their web pages, reducing customer churn, and increasing the overall business value. That is why it is important to choose the right APIs and learn how to use them effectively. The AminSoft team will assist you with API integration and development. If you need a consultation, feel free and contact us.

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