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="Colossians_1:18" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Baptismal Service" missing="" />
      <page ns="0" title="Book of Common Prayer" missing="" />
      <page ns="0" title="Colossians 1:13-14" missing="" />
      <page ns="0" title="Colossians 1:13-14; 3:4" missing="" />
      <page ns="0" title="Colossians 1:15" missing="" />
      <page ns="0" title="Colossians 1:15-26" missing="" />
      <page pageid="163" ns="0" title="Can you earn God&#039;s grace? (Q141)" />
      <page pageid="11" ns="0" title="Can you mend your broken relationship with God? (Q5)" />
      <page pageid="301" ns="0" title="Can you worship God perfectly? (Q269)" />
      <page pageid="422" ns="0" title="Catechesis Task Force" />
    </pages>
  </query>
</api>