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="BBW_On-line_Dating_Services2827757" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="45296" ns="0" title="B" />
      <p pageid="35113" ns="0" title="B12 Vitamin Basics 21703" />
      <p pageid="35010" ns="0" title="B12 Vitamin Basics 33875" />
      <p pageid="35576" ns="0" title="B12 Vitamin Basics 48476" />
      <p pageid="18799" ns="0" title="BBC Radio 2 s Jo Whiley 28044" />
      <p pageid="18829" ns="0" title="BBC Radio 2 s Jo Whiley 34390" />
      <p pageid="49954" ns="0" title="BBW On-line Dating Services1569544" />
      <p pageid="49955" ns="0" title="BBW On-line Dating Services2092932" />
      <p pageid="49962" ns="0" title="BBW On-line Dating Services2412260" />
      <p pageid="49926" ns="0" title="BBW On-line Dating Services2571929" />
    </allpages>
  </query>
</api>