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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>
    <allpages apcontinue="Классы_MCP" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="21" ns="0" title="Hub" />
      <p pageid="6" ns="0" title="Minecraft Utopia - WIKI" />
      <p pageid="23" ns="0" title="Plots" />
      <p pageid="19" ns="0" title="Rampage" />
      <p pageid="9" ns="0" title="TrainCarts - мануал" />
      <p pageid="17" ns="0" title="Vanilla" />
      <p pageid="1" ns="0" title="Заглавная страница" />
      <p pageid="8" ns="0" title="Защити свои вещи или плагин LWC" />
      <p pageid="27" ns="0" title="Зельеварение" />
      <p pageid="13" ns="0" title="Как начать играть в мире Plots." />
    </allpages>
  </query>
</api>