According to the Google terms of use, using Google`s Map API for loading tiles in Kendo Map (or any other third party widget) is illegal. Google Maps API allows including Google Maps into your web-pages using JavaScript. The Google terms prohibit access or use the Service or any Content through any technology or means other than those provided in the Service, or through other explicitly authorized means Google may designate. According to their terms, we cannot provide you with an official example on how to use Google's Map services in conjunction with Kendo Map, even though they should offer a standard tile service that could be consumed in a Kendo Map, as Kendo Map works with WGS 84 standard tile services.

With the above in mind, if you want to use Google Maps on your page you need to use their API only and with your own access key. An example for loading Google Map in Kendo application could be found in the following HowTo article: https://docs.telerik.com/kendo-ui/controls/hybrid/how-to/application/include-google-maps