You are looking at the HTML representation of the XML format.
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>
    <allredirects garcontinue="Ядра_Minecraft" />
  </query-continue>
  <query>
    <pages>
      <page pageid="460" ns="0" title="HurtWorld Oxide Permissions" />
      <page pageid="501" ns="0" title="Minecraft Forge" />
      <page pageid="105" ns="0" title="RustIO Oxide" />
      <page pageid="489" ns="0" title="Server.cfg Rust Legacy" />
      <page pageid="63" ns="0" title="Как изменить Steam на No-Steam?" />
      <page pageid="42" ns="0" title="Команды Rust" />
      <page pageid="125" ns="0" title="Команды для чата" />
      <page pageid="81" ns="0" title="Отличие Rust Experimental от Rust Legacy" />
      <page pageid="76" ns="0" title="Предметы Rust Experimental" />
      <page pageid="496" ns="0" title="Установка плагинов craftbukkit" />
    </pages>
  </query>
</api>