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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <alltransclusions gatcontinue="Blogtranslation/de|15319" />
  </query-continue>
  <query>
    <pages>
      <page pageid="14488" ns="0" title="Impossible IRL" />
      <page pageid="14489" ns="0" title="Shelter" />
      <page pageid="14543" ns="10" title="Template:SLWorld" />
      <page pageid="15319" ns="0" title="Blog √úbersetzungen/Archiv/2008 07" />
      <page pageid="16214" ns="0" title="Help Island for Volunteers/he" />
      <page pageid="16482" ns="10" title="Template:Bidi" />
      <page pageid="17271" ns="0" title="Blog √úbersetzungen" />
      <page pageid="17932" ns="0" title="German Mentors Gruppe/de" />
      <page pageid="66182" ns="10" title="Template:JiraSearch/LSL Bugs" />
      <page pageid="66192" ns="10" title="Template:JiraSearch/LSL Issues" />
    </pages>
  </query>
</api>