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>
    <alllinks galcontinue="Barrothian_Technofane_Explorator_Fleet_Report_001~1439161097" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Barony Gerra" missing="" />
      <page ns="0" title="Barren Two" missing="" />
      <page pageid="6739" ns="0" title="Ba Battle for the Thamris Hivettle Report Title" />
      <page pageid="5909" ns="0" title="Badab War" />
      <page pageid="6023" ns="0" title="Badab War Campaign" />
      <page pageid="5911" ns="0" title="Badab War Chapters" />
      <page pageid="6024" ns="0" title="Badab War Phase 1" />
      <page pageid="1841" ns="0" title="Bakayri" />
      <page pageid="4892" ns="0" title="Barbadua" />
      <page pageid="2251" ns="0" title="Barrothian Technofane Explorator Fleet Report 001" />
    </pages>
  </query>
</api>