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="Contact" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="77" ns="0" title="BRI FAQ" />
      <p pageid="145" ns="0" title="Board Clock Management" />
      <p pageid="84" ns="0" title="CDC FAQ" />
      <p pageid="71" ns="0" title="Call Recording" />
      <p pageid="12" ns="0" title="Case study" />
      <p pageid="149" ns="0" title="Certifications" />
      <p pageid="154" ns="0" title="China Huaneng Group Built Next Generation Distributed Unified Communications Network across China and its overseas Branches on Synway’s Platform" />
      <p pageid="58" ns="0" title="Conferencing &amp; Bus Applications" />
      <p pageid="144" ns="0" title="Connection Points for Physical Transmission between Digital Trunk Board &amp; PBX" />
      <p pageid="212" ns="0" title="Connection of Lync Server to Synway Gateway" />
    </allpages>
  </query>
</api>