# Home ## Introduction In this guide, you'll learn how to interact with the API using your own tools. ### What’s a REST API? An API is an application programming interface - in short, it’s a set of rules that lets programs talk to each other, exposing data and functionality across the internet in a consistent format. REST stands for [Representational State Transfer](http://www.ics.uci.edu/~fielding/pubs/dissertation/rest_arch_style.htm). This is an architectural pattern that describes how distributed systems can expose a consistent interface. When people use the term ‘REST API,’ they are generally referring to an API accessed via HTTP protocol at a predefined set of URLs. These URLs represent various resources - any information or content accessed at that location, which can be returned as JSON, HTML, audio files, or images. Often, resources have one or more methods that can be performed on them over HTTP, like GET, POST, PUT and DELETE. {% hint style="danger" %} An API key is required to make any call to the server. Is you have any trouble getting it, please contact our support. {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sponseasy.com/master.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.