Starting on June 11, you’ll need a valid API key and a Google Cloud Platform billing account to access the core Google Maps APIs. Google opened Google Maps to developers way back in June 2005.

1.6 Geocode Requests. There is a limit of 50,000 geocode requests per day per Maps API key. This translates to roughly one geocode request every 1.73 seconds. If you exceed this 24-hour limit, the ...

To generate an API key, go to the Google API console and navigate to the credentials page. The next step is to go to the API library, search for Knowledge Graph, and then enable it.

Since Google published its Maps API, numerous applications, called mash-ups, have been developed that integrate customized data on top of Google’s map interface. With the Maps API, it’s ...