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>
    <templates gtlcontinue="1|10|Random_fact_2" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1907" ns="0" title="Parabellum" touched="2015-07-04T19:20:00Z" lastrevid="13954" counter="1868" length="1774" />
      <page pageid="4961" ns="10" title="Template:Article of the moment" touched="2015-07-19T14:52:20Z" lastrevid="12985" counter="1132" length="1089" />
      <page pageid="6130" ns="10" title="Template:Front page AOTD missing" touched="2015-06-11T01:23:55Z" lastrevid="14682" counter="588" length="451" new="" />
      <page pageid="1843" ns="10" title="Template:Front page quotes" touched="2015-07-19T16:29:09Z" lastrevid="14926" counter="1259" length="20026" />
      <page pageid="4964" ns="10" title="Template:Main page footer" touched="2015-06-10T23:17:50Z" lastrevid="12143" counter="1354" length="241" />
      <page pageid="1844" ns="10" title="Template:Main page header" touched="2015-07-19T15:54:38Z" lastrevid="14913" counter="1854" length="1442" />
      <page pageid="1845" ns="10" title="Template:Main page left column" touched="2024-05-15T12:49:28Z" lastrevid="14681" counter="2981" length="1128" />
      <page pageid="1846" ns="10" title="Template:Main page right column" touched="2024-05-15T14:38:02Z" lastrevid="14911" counter="2785" length="1544" />
      <page pageid="1847" ns="10" title="Template:QOTD" touched="2015-07-19T16:32:19Z" lastrevid="14928" counter="958" length="335" />
      <page pageid="1848" ns="10" title="Template:Random fact" touched="2013-08-25T23:40:15Z" lastrevid="3695" counter="854" length="1778" />
    </pages>
  </query>
</api>