Glossary
API (Application Programming Interface)
API (Application Programming Interface)
An API (Application Programming Interface) defines protocols and rules on how software programs should interact.

What is an API?

An API (Application Programming Interface) is a set of protocols and rules demonstrating how software programs should interact with each other. APIs allow multiple software systems to communicate and exchange data in a standardized way. APIs allow different software systems to interoperate and work together and are a key component of many modern software architectures. APIs can be used to expose the functionality of a software application to other developers, who can then utilize that functionality in their own applications.

Why are APIs important?

An API is an important tool in the mobile world because it allows mobile app developers to leverage the functionality of existing platforms and services. For example, a mobile app developer can use an API provided by a social media platform to allow users to log in to their apps using their social media credentials.

Furthermore, an API can enable mobile app developers to access data and functionality from other software systems. This allows them to build more feature-rich and integrated apps that provide a better user experience.

Finally, an API can help mobile app developers to scale their apps more easily. By using APIs to access external services and functionality, mobile app developers can offload certain tasks to those services and free up resources on their own servers.

API vs SDK

​​One key difference between an API and an SDK is that an API is focused on providing a set of rules and protocols for communication between two software systems. In contrast, an SDK is more about giving developers the tools and resources to build software applications.

Another difference is that developers use an API to expose the functionality of a software system to other developers. In comparison, developers use an SDK to build applications using that functionality.

What is an Open API?

An open API (or a public API) is an API that is publicly available for use by developers. Companies typically provide open APIs as a way to allow developers to access the functionality of their software systems or platforms. Open APIs are often used to expose the functionality of a software system to other developers, who can then utilize that functionality in their own applications. Open APIs can be accessed over the internet using standard protocols such as HTTP, and they often require developers to register for an API key or other form of authentication before being used. Open APIs are an essential tool for enabling software systems to interoperate and work together, and they are a key component of many modern software architectures.

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