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>
    <alltransclusions gatcontinue="Bot_Navbox|1283" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1007" ns="0" title="Bots:Frigate" />
      <page pageid="1008" ns="0" title="Collector drones" />
      <page pageid="1014" ns="0" title="Observers" />
      <page pageid="1017" ns="0" title="Transport drones" />
      <page pageid="1019" ns="0" title="Hive Queen" />
      <page pageid="1021" ns="0" title="NPC Traders" />
      <page pageid="1023" ns="0" title="GuideBots" />
      <page pageid="1086" ns="0" title="Station Guards" />
      <page pageid="1087" ns="0" title="Strike Force" />
      <page pageid="1161" ns="0" title="Aerna Seeker" />
    </pages>
  </query>
</api>