Let's be clear here: this is an unauthorized use of Google servers.<p>Unless Google provides an explicit Terms Of Service for this API endpoints allowing its use, you can assume that it exists only to serve Google-owned software (like Chrome).<p>Just because it exists doesn't mean you can use it.<p>There's an obvious risk that Google can modify the API and less obvious legal risk of misusing someone else's resources.<p>Doesn't mean you can't play with it and use it for experiments but you probably shouldn't cross the line of actually using it in any production software.