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="Do_you_need_a_CNC_machine?" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="166" ns="0" title="Base grinder" />
      <p pageid="12" ns="0" title="Bases, edges, and nose/tail spacers" />
      <p pageid="187" ns="0" title="Building a stack" />
      <p pageid="14" ns="0" title="CNC Core Cutting" />
      <p pageid="17" ns="0" title="CNC Router" />
      <p pageid="152" ns="0" title="CNC machines: build or buy?" />
      <p pageid="15" ns="0" title="Cleanup after inlay, and final blank sizing" />
      <p pageid="18" ns="0" title="Construction Checklist" />
      <p pageid="74" ns="0" title="Construction Overview" />
      <p pageid="185" ns="0" title="Core blank overview" />
    </allpages>
  </query>
</api>