Application Programming Interface (API): A-Level Computer Science Definition

Last updated

19 February 2025

Contents

What is an API?

In A Level Computer Science, an application programming interface (API) is a set of rules and protocols that allow software applications to communicate with each other. APIs define how requests and responses should be structured.

Why are APIs important?

APIs enable interoperability between systems, allowing developers to integrate external services, such as payment gateways, mapping services, and social media logins.

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Reviewer

Author: James Woodhouse

Expertise: Computer Science

James graduated from the University of Sunderland with a degree in ICT and Computing education. He has over 14 years of experience both teaching and leading in Computer Science, specialising in teaching GCSE and A-level. James has held various leadership roles, including Head of Computer Science and coordinator positions for Key Stage 3 and Key Stage 4. James has a keen interest in networking security and technologies aimed at preventing security breaches.

Author: Robert Hampton

Expertise: Computer Science Content Creator

Rob has over 16 years' experience teaching Computer Science and ICT at KS3 & GCSE levels. Rob has demonstrated strong leadership as Head of Department since 2012 and previously supported teacher development as a Specialist Leader of Education, empowering departments to excel in Computer Science. Beyond his tech expertise, Robert embraces the virtual world as an avid gamer, conquering digital battlefields when he's not coding.

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