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>
    <allpages apcontinue="Buckler_Lake" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="1377" ns="0" title="Baron Evaluations" />
      <p pageid="152" ns="0" title="Bastion Augusta Raphiel" />
      <p pageid="300" ns="0" title="Bath House - Inn of the New Home" />
      <p pageid="1307" ns="0" title="Beauty in All Forms" />
      <p pageid="240" ns="0" title="Before the Swallowtail Festival" />
      <p pageid="200" ns="0" title="Below the Glassworks" />
      <p pageid="325" ns="0" title="Blank Character Template" />
      <p pageid="122" ns="0" title="Blue Quartz Facts" />
      <p pageid="1132" ns="0" title="Bola Tangkas Terpercaya" />
      <p pageid="63" ns="0" title="Borderpoint" />
    </allpages>
  </query>
</api>