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>
    <links gplcontinue="1|0|Size_of_humankind" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="FAQ" missing="" contentmodel="wikitext" pagelanguage="en" />
      <page pageid="63" ns="0" title="Compendio dei santi, teologi, mistici e profeti oggi dimenticati" contentmodel="wikitext" pagelanguage="en" touched="2013-05-01T14:15:50Z" lastrevid="1422" counter="21973" length="1020" />
      <page pageid="79" ns="0" title="Find unsecured IP cameras" contentmodel="wikitext" pagelanguage="en" touched="2011-01-29T18:58:48Z" lastrevid="505" counter="132662" length="7935" />
      <page pageid="39" ns="0" title="Golygons" contentmodel="wikitext" pagelanguage="en" touched="2010-10-31T21:20:48Z" lastrevid="253" counter="19269" length="5168" />
      <page pageid="100" ns="0" title="Links on problems in academia" contentmodel="wikitext" pagelanguage="en" touched="2014-09-11T14:46:29Z" lastrevid="1569" counter="63898" length="21633" />
      <page pageid="136" ns="0" title="Number of volumes in the Library of Babel" contentmodel="wikitext" pagelanguage="en" touched="2012-01-27T18:03:56Z" lastrevid="956" counter="4149" length="941216" />
      <page pageid="62" ns="0" title="Places to eat" contentmodel="wikitext" pagelanguage="en" touched="2014-09-13T11:40:01Z" lastrevid="1570" counter="49460" length="14133" />
      <page pageid="88" ns="0" title="Places to sleep" contentmodel="wikitext" pagelanguage="en" touched="2012-12-24T14:49:40Z" lastrevid="1332" counter="14192" length="2868" />
      <page pageid="95" ns="0" title="Python-Perl cheatsheet" contentmodel="wikitext" pagelanguage="en" touched="2011-08-09T13:42:24Z" lastrevid="801" counter="37256" length="6767" />
      <page pageid="51" ns="0" title="Sandbox" contentmodel="wikitext" pagelanguage="en" touched="2010-09-25T19:22:29Z" lastrevid="203" counter="4044" length="46" />
    </pages>
  </query>
</api>