You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <links gplcontinue="1|0|Safety" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="IGEM Publicity" missing="" />
      <page pageid="19" ns="0" title="Calendar of Events" touched="2011-10-16T21:37:55Z" lastrevid="237756" counter="62337" length="2309" />
      <page pageid="6420" ns="0" title="Community" touched="2011-11-10T14:53:55Z" lastrevid="262805" counter="149471" length="40890" />
      <page pageid="26" ns="0" title="High School Competition" touched="2011-10-25T19:50:40Z" lastrevid="85305" counter="76146" length="2176" />
      <page pageid="35102" ns="0" title="IGEM Publications" touched="2012-01-03T22:02:06Z" lastrevid="263052" counter="9860" length="655" new="" />
      <page pageid="33" ns="0" title="Jamborees" touched="2011-11-10T20:48:02Z" lastrevid="262806" counter="153416" length="21624" />
      <page pageid="2786" ns="0" title="Judging" touched="2011-10-15T05:58:20Z" lastrevid="237232" counter="87489" length="12369" />
      <page pageid="1951" ns="0" title="Main page archive" touched="2011-11-07T22:42:34Z" lastrevid="262757" counter="32093" length="70788" />
      <page pageid="89" ns="0" title="Photo Gallery" touched="2011-03-07T22:24:30Z" lastrevid="309" counter="17173" length="643" />
      <page pageid="20" ns="0" title="Requirements" touched="2011-09-23T14:01:13Z" lastrevid="171730" counter="55209" length="6779" />
    </pages>
  </query>
</api>