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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>
    <allcategories accontinue="Командная_проектная_работа" />
  </query-continue>
  <query>
    <allcategories>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">2003 establishments in South Korea</c>
      <c size="12" pages="12" files="0" subcats="0" xml:space="preserve">Data Culture</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">Esports teams based in South Korea</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">Esports teams established in 2003</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">League of Legends Champions Korea teams</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">Overwatch League academy teams</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">SK Sports</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">StarCraft II teams</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">StarCraft teams</c>
      <c size="1" pages="1" files="0" subcats="0" xml:space="preserve">Участники образовательных проектов</c>
    </allcategories>
  </query>
</api>