Flow to Assess Flesch-Kinkaid Score of an Email

Has anyone created (or has the ability to create) a Flow that will intake an email and return the Flesh-Kinkaid readability score? Rather than run it manually through Word or Outlook, we'd like to be able to send our emails through Flow an ultimately populate a SharePoint Online list with the title of the email, date, and the Flesh-Kinkaid numeric score.