Google Authentication in .Net6.0 implement google as identity provider in .Net 6.0 & get user details seperate class library to authenticate and get user profile in .net 6.0 Steps to register project in google open https://console.cloud.google.com/apis/dashboard create project enable api & serivce and add google+api and people api click oAuth consent and register your app click credential-> new credential -->oAuth client and enter below details and save ---copy your clientid & Client secret