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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>
    <allpages>
      <p pageid="378" ns="0" title="BPC" />
      <p pageid="580" ns="0" title="BTCOverview" />
      <p pageid="1259" ns="0" title="Believe" />
      <p pageid="1017" ns="0" title="Bhasin" />
      <p pageid="104" ns="0" title="BouncePathControl" />
      <p pageid="105" ns="0" title="Bounce Path Control" />
      <p pageid="212" ns="0" title="Bounce path control" />
      <p pageid="1115" ns="0" title="Bzzt" />
      <p pageid="308" ns="0" title="CDC" />
      <p pageid="375" ns="0" title="Center for Disease Control" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Center for Disease Control and Prevention" />
  </query-continue>
</api>