You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <links gplcontinue="1|0|Fax_Status_Messages" />
  </query-continue>
  <query>
    <pages>
      <page pageid="78" ns="0" title="Account Management" touched="2013-11-21T19:51:14Z" lastrevid="381" counter="21270" length="4602" />
      <page pageid="256" ns="0" title="Category Types" touched="2014-09-15T15:12:18Z" lastrevid="2970" counter="1486" length="118" new="" />
      <page pageid="2" ns="0" title="Choosing an Authentication Strategy" touched="2018-03-07T00:12:53Z" lastrevid="3294" counter="3257" length="3066" />
      <page pageid="169" ns="0" title="DNS Settings" touched="2014-09-03T19:40:02Z" lastrevid="2966" counter="6997" length="1263" />
      <page pageid="155" ns="0" title="DirectTrust Activation" touched="2018-02-05T19:15:12Z" lastrevid="3283" counter="18558" length="2602" />
      <page pageid="156" ns="0" title="DirectTrust Activation Test Cases" touched="2015-03-09T15:38:35Z" lastrevid="2994" counter="18581" length="3433" />
      <page pageid="168" ns="0" title="Direct Messaging" touched="2013-12-20T14:44:41Z" lastrevid="747" counter="7969" length="1630" />
      <page pageid="323" ns="0" title="Edge Protocols" touched="2018-02-05T20:14:54Z" lastrevid="3290" counter="2298" length="1276" />
      <page pageid="16" ns="0" title="Error Codes" touched="2015-12-11T20:47:10Z" lastrevid="3099" counter="35894" length="2606" />
      <page pageid="139" ns="0" title="FAQ" touched="2016-06-21T15:03:07Z" lastrevid="3256" counter="229247" length="8252" />
    </pages>
  </query>
</api>