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="Team:BNU-CHINA" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Dev/Bar" missing="" />
      <page pageid="57586" ns="0" title="Community/ZJU-China Letter about Shipping DNA" />
      <page pageid="8079" ns="0" title="IGEM By The Numbers" />
      <page pageid="63" ns="0" title="Requirements/Consent" />
      <page pageid="53" ns="0" title="Safety/Risk Groups" />
      <page pageid="62407" ns="0" title="Team:Aachen/Project/Overview" />
      <page pageid="11393" ns="0" title="Team:Austin UTexas/Project/Caffeine" />
      <page pageid="27502" ns="0" title="Team:Austin UTexas/Project/Plasmid Study" />
      <page pageid="14151" ns="0" title="Team:Austin UTexas/Project/Problem" />
      <page pageid="14157" ns="0" title="Team:Austin UTexas/Project/Strain Study" />
    </pages>
  </query>
</api>