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  1. 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, …

  2. 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 …

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

    Nov 3, 2023 · 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, features and …

  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 …

  5. What Is an API? (+ How Do They Work?) | Coursera

    Dec 16, 2025 · What is an API? API stands for application programming interface. An API is a set of protocols and instructions written in programming languages such as C++ or JavaScript that …

  6. How Do APIs Work? | What Is an API? | Akamai

    API is an abbreviation of application programming interface, a set of protocols and definitions that allow different software components or programs to communicate with each other and share …

  7. REST API Introduction - GeeksforGeeks

    Dec 23, 2025 · REST API stands for Representational State Transfer API. It is a type of API (Application Programming Interface) that allows communication between different systems …

  8. The world's most widely used API description standard

    The OpenAPI Specifications provide a formal standard for describing HTTP APIs. This allows people to understand how an API works, how a sequence of APIs work together, generate …

  9. API | Definition, Meaning, Examples, & Facts | Britannica

    Oct 22, 2025 · API, sets of standardized requests that allow different computer programs to communicate with each other. APIs establish the proper way for a developer to request …

  10. What is an API? - Application Programming Interfaces Explained

    API stands for Application Programming Interface. In the context of APIs, the word Application refers to any software with a distinct function. Interface can be thought of as a contract of …