The Google API allows you to build your own applications that leverage certain parts of Google's infrastructure. Â An API in general is just a way for applications to interact. Â You can read about APIs here:Â http://en.wikipedia.org/wiki/Application_programming_interface You can read about the differente Google APIs here: http://code.google.com/more/Â
API(Application Programming Interface) it is software which is used to interact with the human and computer.