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="BSI|80" />
  </query-continue>
  <query>
    <pages>
      <page pageid="10" ns="0" title="Nokia 1680 classic pinout" />
      <page pageid="11" ns="0" title="Nokia E51 pinout" />
      <page pageid="13" ns="0" title="Nokia 6020 pinout" />
      <page pageid="16" ns="0" title="Nokia 3310 pinout" />
      <page pageid="18" ns="0" title="Nokia 7100 supernova pinout" />
      <page pageid="21" ns="0" title="Nokia 3120 classic pinout" />
      <page pageid="23" ns="0" title="Nokia 3410 pinout" />
      <page pageid="25" ns="10" title="Template:Pinout abbreviations" />
      <page pageid="32" ns="0" title="BTemp" />
      <page pageid="40" ns="10" title="Template:Battery pinout abbreviations" />
    </pages>
  </query>
</api>