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="Minecraft_-_Pocket_Edition" />
  </query-continue>
  <query>
    <pages>
      <page pageid="126" ns="0" title="Chat Manager" />
      <page pageid="78" ns="0" title="Counter-Strike: Global Offensive" />
      <page pageid="55" ns="0" title="Counter-Strike Source" />
      <page pageid="7" ns="0" title="Counter-strike 1.6" />
      <page pageid="95" ns="0" title="Day of Defeat: Source" />
      <page pageid="56" ns="0" title="FAQ" />
      <page pageid="108" ns="0" title="FTP клиент в редакторе Notepad++" />
      <page pageid="21" ns="0" title="GTA San Andreas Multiplayer" />
      <page pageid="100" ns="0" title="Isp менеджер, Web, MySQL" />
      <page pageid="23" ns="0" title="Minecraft" />
    </pages>
  </query>
</api>