title: Azure AD - Validate Token
body: <p>Is there any way to validate token of Azure Active Directory using HttpClient in C# just like Facebook is providing?</p>
  
  <p>Facebook Method to validate token:</p>
  
  <pre><code>string verifyTokenEndPoint = string.Format("https://graph.facebook.com/debug_token?input_token={0}&amp;access_token={1}", authToken, appToken);
  </code></pre>
  
  <p>Same way I am looking for the Azure Active Directory, May be with GraphApi or Alternate way?</p>
  
  <p>Please help me out !!</p>