title: Keycloak: Access token validation end point
body: <p>Running keycloak on standalone mode.and created a micro-service by using node.js adapter for authenticating api calls.</p>
  
  <p>jwt token from the keyclaok is sending along with each api calls. it will only respond if the token sent is a valid one.</p>
  
  <ul>
  <li>how can i validate the access token from the micro service?</li>
  <li>is there any token validation availed by keycloak?</li>
  </ul>