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Application Program Interface (API)

Glossary

What is Application Program Interface (API)

Application Program Interface (API) is the specific interface which allows multilple software tools to share data with each other and integrate operations into single environment. Applocation programming interfaces can be different abd be integrable with different types of software. API (Application Programming Interface) specification is the name for applications programming interface documents or standards which are used to integrate different kinds of software.

Application program interface is a concept which is much older than the modern API is. First experiments in this field were performed by British scientists in early 1940s. Nowadays, the API interface is maybe the most important feature of some business tools and solutions, because modern businesses use numerous advanced tools to analyze data, gather inormation, optimize workflow and automate business operations. Without proper integrations, switching between all these tools will take too much time and harm operational efficiency, while API can eliminate this issue. There are three main types of API – private, which can be used only by members of one exact organizations with specific permissions, Partner API for certified partners of the organizations which get specific permissions, and Public API – API which is accessible for anyone who needs it. Public API has very high requirements to security protocols, at least because it is accessible for any person in the world.

Synonyms for definition Application Program Interface (API)

  • Software intermediary
  • Programming interface
  • Code interface
  • Software communication channel
  • Application bridge
  • Software interaction layer
  • Program connectivity protocol
  • Application gateway
  • Software messenger
  • Program interpreter

Essentially, an API is a set of rules, protocols, and tools that allows different software applications to communicate and interact with each other. It acts as an intermediary that facilitates the exchange of data and functionality between different software components or systems.

FAQ about Application Program Interface (API)

Why are APIs important?

APIs are the unsung heroes of the digital world. They’re the glue that holds modern technology together. Without APIs, popular apps, websites, and services that we rely on daily wouldn’t be able to talk to each other or access the data they need. APIs make our digital lives more convenient, efficient, and integrated.

Can you give me an example of how APIs are used?

Absolutely! Let’s say you’re using a ride-sharing app like Uber or Lyft. When you request a ride, the app uses APIs to communicate with Google Maps to pinpoint your location, with payment gateways to process your payment, and with the drivers’ apps to match you with the nearest available driver. APIs make this seamless experience possible.

Are there different types of APIs?

Yes, there are several types of APIs, each serving a different purpose. Some common types include:

Web APIs: These APIs are used to transfer data over the internet, enabling web applications to communicate with servers and retrieve or send information.

Operating System APIs: These APIs allow software programs to interact with the underlying operating system, accessing features like file management, memory allocation, and user interface elements.

Database APIs: These APIs provide an interface for software applications to interact with databases, allowing them to store, retrieve, and manipulate data.

How do I access an API?

To access an API, you typically need to follow the documentation provided by the API provider. This documentation outlines the available endpoints (URLs or addresses where you can send requests), the required parameters, and the expected response formats. Some APIs require authentication, such as API keys or OAuth tokens, to ensure secure access.

Are APIs free to use?

While many APIs are free to use, especially those provided by major tech companies like Google, Facebook, or Twitter, some APIs may require a paid subscription or usage-based pricing. It’s essential to review the terms of service and pricing plans before integrating an API into your application. Some APIs offer free tiers for smaller projects or personal use, while commercial applications may need to purchase a paid plan.

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