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HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages gaifrom="Chap11Cover.jpg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="2989" ns="6" title="File:2010-07-31-floatycity.jpg" />
      <page pageid="2662" ns="6" title="File:Anne.jpg" />
      <page pageid="2710" ns="6" title="File:Another Sarine.jpg" />
      <page pageid="2723" ns="6" title="File:Awed Meji.jpg" />
      <page pageid="3047" ns="6" title="File:Bani II.jpg" />
      <page pageid="2653" ns="6" title="File:Barin.jpg" />
      <page pageid="2709" ns="6" title="File:Better Sarna.jpg" />
      <page pageid="3192" ns="6" title="File:Captain Aphel.jpg" />
      <page pageid="2938" ns="6" title="File:Chap03Cover.jpg" />
      <page pageid="3180" ns="6" title="File:Chap10Cover.jpg" />
    </pages>
  </query>
</api>