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>
    <allfileusages gafcontinue="Bd-wiki-icon.png|1546" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1391" ns="0" title="Braddock Larose" />
      <page pageid="1456" ns="0" title="Ariane Carnath-Emory" />
      <page pageid="1459" ns="0" title="Alligail" />
      <page pageid="1477" ns="0" title="Raegan Darkblayde" />
      <page pageid="1481" ns="0" title="Carys Borden" />
      <page pageid="1482" ns="0" title="Drissel Scott" />
      <page pageid="1484" ns="0" title="Charlotte Arryngton" />
      <page pageid="1485" ns="0" title="Coriolanus Helstone" />
      <page pageid="1498" ns="0" title="Una Rillford" />
    </pages>
  </query>
</api>