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>
    <alllinks galcontinue="Benton_County_Museum" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Beaver County" missing="" />
      <page ns="0" title="Beaver Island Historical Society" missing="" />
      <page ns="0" title="Bellevue Historical Society" missing="" />
      <page pageid="1497" ns="0" title="Baltimore Museum of Art" />
      <page pageid="1870" ns="0" title="Bangladesh National Museum" />
      <page pageid="1893" ns="0" title="Bankfield Museum" />
      <page pageid="1577" ns="0" title="Beamish Museum" />
      <page pageid="1927" ns="0" title="Beaufort West Museum" />
      <page pageid="1997" ns="0" title="Beaver County Historical Research &amp; Landmarks Foundation" />
      <page pageid="1865" ns="0" title="Beaver County Historical Research and Landmarks Foundation" />
    </pages>
  </query>
</api>