The Google APIs Explorer is a tool that helps you explore various Google APIs interactively. With the APIs Explorer, you can: See methods available for each API and what parameters they support along with inline documentation. Execute requests for any method and see responses in real time.
In this way, what do I do with an API key?
An application programming interface key (API key) is a code passed in by computer programs calling an application programming interface (API) to identify the calling program, its developer, or its user to the Web site.
What is the Google Maps API?
This tutorial is about the Google Maps API (Application Programming Interface). An API is a set of methods and tools that can be used for building software applications. Google Maps API allows you to display maps on your web site: Map Data.
What is a Google search API?
The JSON Custom Search API lets you develop websites and applications to retrieve and display search results from Google Custom Search programmatically. With this API, you can use RESTful requests to get either web search or image search results in JSON format.