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="Bid_Protest_-_What_to_Protest" />
  </query-continue>
  <query>
    <pages>
      <page pageid="287" ns="0" title="Basic Ordering Agreement" />
      <page pageid="458" ns="0" title="Basic Research" />
      <page pageid="2275" ns="0" title="Basis of Estimate" />
      <page pageid="829" ns="0" title="Benchmark Compensation Amount" />
      <page pageid="459" ns="0" title="Best Value" />
      <page pageid="1782" ns="0" title="Better Buying Power 1.0" />
      <page pageid="1783" ns="0" title="Better Buying Power 2.0" />
      <page pageid="1769" ns="0" title="Better Buying Power 3.0" />
      <page pageid="2601" ns="0" title="Bid &amp; Proposal" />
      <page pageid="935" ns="0" title="Bid Protest - Preparation of a Protest" />
    </pages>
  </query>
</api>