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="Chedd" />
  </query-continue>
  <query>
    <pages>
      <page pageid="2838" ns="0" title="Bamboo Cane" />
      <page pageid="2229" ns="0" title="Barley Seeds" />
      <page pageid="3931" ns="0" title="Bee" />
      <page pageid="595" ns="0" title="Blue Gummie Swet" />
      <page pageid="2712" ns="0" title="Book of Lore" />
      <page pageid="1896" ns="0" title="Boss Fights" />
      <page pageid="2235" ns="0" title="Cabbage Seeds" />
      <page pageid="959" ns="0" title="Carpet" />
      <page pageid="2251" ns="0" title="Celery Seeds" />
      <page pageid="834" ns="0" title="Chair" />
    </pages>
  </query>
</api>