APIs are defined as which of the following?

APIs, or Application Programming Interfaces, serve as a critical bridge between different software applications, allowing them to communicate and interact. The definition that includes routines, standards, protocols, and tools provides a comprehensive understanding of what APIs encompass.

Routines are the predefined methods or functions that developers use to perform specific tasks within APIs. Standards ensure consistency and interoperability between different systems and platforms. Protocols define the rules and conventions for communication, such as how data is formatted and transmitted. Tools facilitate the development and integration process, enabling developers to efficiently create applications that leverage the capabilities of various web-based services.

This definition captures the full scope of what APIs can do and underlines their role in software development, particularly in environments where multiple applications need to work together harmoniously. The inclusion of all these components highlights the versatility and functionality of APIs in creating scalable and efficient software ecosystems.