embedded analytics auth without connecting on google account

[Leonardo Pereira]

Greetings gentlemen

I'm using embedded analytics with a generic Google Account, to show specific dashboard for which one of my client's website. 

I'd like to know if is possible to do the same without connecting on a Google Account or... "auto connecting" and just show the reports on my client's website. 

I don't what to give them an user and password for connect 

I already tried this one https://ga-dev-tools.appspot.com/embed-api/server-side-authorization/ but doesn't work, I don't know why but when I tried to pass the toke that i received the code just don't execute the (new gapi.analytics.googleCharts.DataChart) query party

Please help! 

Btw sorry about my terrible English 

Tks 

Best regards