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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>
    <allredirects garcontinue="Celestia8_-SquareEnix_Festival_2nd_Stage-" />
  </query-continue>
  <query>
    <pages>
      <page pageid="664" ns="0" title="Celestia11 -New generation-" />
      <page pageid="718" ns="0" title="Celestia12 -Short Charging SQEX-" />
      <page pageid="811" ns="0" title="Celestia13 -SQEX Festival 3rd-" />
      <page pageid="887" ns="0" title="Celestia14 -SQEX Festival:Altar-" />
      <page pageid="14" ns="0" title="Celestia2 -Celestia Jazz Festival-" />
      <page pageid="12" ns="0" title="Celestia3 -Natural Sound Festival-" />
      <page pageid="10" ns="0" title="Celestia4 -Red or White-" />
      <page pageid="8" ns="0" title="Celestia5 -Sunlight/Moonlight-" />
      <page pageid="5" ns="0" title="Celestia6 -Melodies of Memories-" />
      <page pageid="2" ns="0" title="Celestia7 -Phase Harmony Festival-" />
    </pages>
  </query>
</api>