diff --git a/swh/web/templates/api/api.html b/swh/web/templates/api/api.html
--- a/swh/web/templates/api/api.html
+++ b/swh/web/templates/api/api.html
@@ -38,6 +38,9 @@
     <li class="list-inline-item">
       <a href="#rate-limiting">Rate limiting</a>
     </li>
+    <li class="list-inline-item">
+      <a href="#authentication">Authentication</a>
+    </li>
   </ul>
 
   <h4 id="endpoint-index">Endpoint index</h4>