API - Wikipedia
        
    https://en.wikipedia.org/wiki/API
        An application programming interface (API), is a computing interface that defines interactions between multiple software intermediaries.
    
        What is an API? (Application Programming Interface) | MuleSoft
        
    https://www.mulesoft.com/resources/api/what-is-an-api
        (Application Programming Interface) API is the acronym for Application Programming Interface, which is a software intermediary that allows two applications to talk to each other.
    
        What is an API? Application programming interfaces explained
        
    https://www.infoworld.com/article/3269878/what-is-an-api-application-programming-interfaces-explained.html
        Application programming interfaces hide complexity from developers, extend systems to partners, organize code, and make components reusable.
    
        What is an Application Programming Interface (API)? | IBM
        
    https://www.ibm.com/cloud/learn/api
        Application programming interfaces, or APIs, simplify software development and innovation by enabling applications to exchange data and functionality easily and securely.
    
        API Interfaces - Developer Guide - CiviCRM Documentation
        
    https://docs.civicrm.org/dev/en/latest/api/interfaces/
        The REST interface requires an api_key which is attached to the user that will be performing the action against the system and a site_key which is the key stored in civicrm.settings.php.
    
        Application Programming Interface (API)
        
    https://www.tutorialspoint.com/application-programming-interface-api
        An Application Programming Interface (API) contains software building tools, subroutine definitions as well as communication protocols that facilitate interacti ...
    
        What is API: Definition, Specifications, Types, Documentation | AltexSoft
        
    https://www.altexsoft.com/blog/engineering/what-is-api-definition-types-specifications-documentation/
        Application programming interfaces consist of two components And the interface by which these two applications communicate is what the API specifies.
    
        Types of APIs (and what's the Difference?) [2021] | RapidAPI
        
    https://rapidapi.com/blog/types-of-apis/
        API stands for Application Programming Interface, which is a mechanism that allows the interaction between two applications using a set of rules. APIs are beneficial because they allow developers to...
    
        What is an API (application programming interface), and... - Quora
        
https://www.quora.com/What-is-an-API-application-programming-interface-and-how-do-I-create-one?share=1
        Technically, API stands for Application Programming Interface . At some point or another, most large companies have built APIs for their customers, or for internal use.