I am trying to automated the reconnecting of the LinkedIN Oauth token

Hi,

I am trying to make my clients automatically get an email when the LinkedIn Oauth token is expiring within 7 days. I have set up an airtable from which these records can be pulled. now i need to build a URL which i can insert into the email thats get send to the client, how do i make this URL and which module is best to use for this?