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>
    <allimages gaicontinue="All_logos.jpg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="190" ns="6" title="File:2015-06-18-Umobile abstract@copelabs-openday.pdf" />
      <page pageid="184" ns="6" title="File:2015-06-18-Umobile poster@copelabs-openday.pdf" />
      <page pageid="203" ns="6" title="File:2015-07-31 UMOBILE WP4.ppt" />
      <page pageid="281" ns="6" title="File:2016-04-12-UMOBILE PerSenseLight Senception.pdf" />
      <page pageid="402" ns="6" title="File:2016-10-10-NDNOpp-SOCIO-v3.ppt.zip" />
      <page pageid="412" ns="6" title="File:20161114 UMOBILE ContextualManagerInterfaces.ppt" />
      <page pageid="361" ns="6" title="File:Addressing.zip" />
      <page pageid="28" ns="6" title="File:Afa.jpg" />
      <page pageid="104" ns="6" title="File:Agenda 001.jpg" />
      <page pageid="523" ns="6" title="File:All-apps.jpg" />
    </pages>
  </query>
</api>