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="Bank_to_Bank_Transfer_Transaction_tips_(Cross_Organization)|12751" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3655" ns="0" title="Functional HOWTOs" />
      <page pageid="3705" ns="0" title="HowTo" />
      <page pageid="4473" ns="0" title="ManPageW FinancialReport" />
      <page pageid="4676" ns="0" title="ManPageW ProductBOM" />
      <page pageid="5069" ns="0" title="Open Items" />
      <page pageid="5588" ns="0" title="Store&#039;s Invoice Pay via HQ&#039;s Bank tips (Cross Organization)" />
      <page pageid="5606" ns="0" title="Table of Contents" />
      <page pageid="5705" ns="0" title="Usage Tips And Tricks" />
      <page pageid="12751" ns="2" title="User:Hengsin" />
    </pages>
  </query>
</api>