API Documentation is a guide that explains how to use an Application Programming Interface (API). It provides detailed information about the functions, methods, and data formats that developers need to interact with a software application. Good documentation helps users understand how to send requests and receive responses, making it easier to integrate different systems. In addition to technical details, API Documentation often includes examples and tutorials. These resources help developers learn how to implement the API in their projects. Clear and comprehensive documentation is essential for ensuring that developers can effectively use the API and troubleshoot any issues that arise.