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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="29" ns="0" title="BMEcat" />
      <p pageid="194" ns="0" title="Bilddatenverwaltung" />
      <p pageid="232" ns="0" title="Business Process Management" />
      <p pageid="71" ns="0" title="CPV" />
      <p pageid="222" ns="0" title="CSV" />
      <p pageid="31" ns="0" title="CXML" />
      <p pageid="112" ns="0" title="Cloud Computing" />
      <p pageid="15" ns="0" title="D-U-N-S®" />
      <p pageid="32" ns="0" title="DATANORM/ELDANORM" />
      <p pageid="77" ns="0" title="E-Business-Anwendungen" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="EANCOM®" />
  </query-continue>
</api>