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  1. API - Wikipedia

    An API is often made up of different parts which act as tools or services that are available to the programmer. A program or a programmer that uses one of these parts is said to call that portion of …

  2. American Petroleum Institute | API

    The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. Our more than 600 corporate members, from the largest …

  3. What is an API (Application Programming Interface)

    4 days ago · API architectures define how systems communicate and exchange data, each offering different levels of flexibility, performance, and structure based on application needs.

  4. What is an API? A Beginner's Guide to APIs | Postman

    Developers use APIs to bridge the gaps between small, discrete chunks of code in order to create applications that are powerful, resilient, secure, and able to meet user needs. Even though you can't …

  5. What Are APIs? A Beginner's Guide (with examples)

    Apr 15, 2025 · But what exactly is an API, and why is it so important? Whether you're a beginner, a junior developer, or just curious, this article breaks down what APIs are, explains RESTful APIs, and …

  6. Web APIs - MDN

    Jul 29, 2025 · Below is a list of all the APIs and interfaces (object types) that you may be able to use while developing your Web app or site.

  7. What is an API (application programming interface)? - IBM

    Nov 3, 2023 · What is an API? An API, or application programming interface, is a set of rules or protocols that enables software applications to communicate with each other to exchange data, …

  8. HTML What is a Web API - W3Schools

    An API is some kind of interface that includes a set of functions and subroutines that allow programmers to access specific features or data of an application, operating system or other services.

  9. Learn API Fundamentals and Architecture – A Beginner-Friendly Guide

    Mar 21, 2025 · API stands for Application Programming Interface. It is a set of rules and protocols that lets different software systems communicate with each other. An API defines how applications …

  10. American Petroleum Institute | API | Standards

    The American Petroleum Institute (API), established in 1919, is the global leader in developing consensus-based standards for the oil and gas industry. Over the past century, API has created …