th the api key passed by header</li>
  <li><code>Basic Auth. Header</code>: authorization Header with the api key as base64 encoded format</li>
  <li><code>Curl Command with Basic Auth. Header</code>: simple request with api key passed in the Authorization header as base64 format</li>
</ul>
<h3><a href="#quotas" name="quotas" class="anchor"><span class="anchor-link"></span></a>Quotas</h3>
<ul>
  <li><code>Throttling quota</code>: the authorized number of calls per second</li>
  <li><code>Daily quota</code>: