only mode, every request done with this api key will only work for GET, HEAD, OPTIONS verbs</li>
  <li><code>Allow pass by clientid only</code>: here you allow client to only pass client id in a specific header in order to grant access to the underlying api</li>
  <li><code>Constrained services only</code>: this apikey can only be used on services using apikey routing constraints</li>
  <li><code>Authorized on</code>: the groups/services linked to this api key</li>
</ul>
<h3><a href="#metadata-and-tags" nam