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>
    <links gplcontinue="1|0|Extension_less_URLs_and_custom_error_pages" />
  </query-continue>
  <query>
    <pages>
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      <page pageid="254" ns="0" title="AbleCommerce Gold Web Api" contentmodel="wikitext" pagelanguage="en" touched="2016-04-22T12:32:57Z" lastrevid="1224" counter="154697" length="7600" />
      <page pageid="32" ns="0" title="CommerceBuilder API" contentmodel="wikitext" pagelanguage="en" touched="2016-02-15T15:13:11Z" lastrevid="1214" counter="154583" length="1660" />
      <page pageid="263" ns="0" title="Custom Field Collections for All Entities" contentmodel="wikitext" pagelanguage="en" touched="2017-10-17T05:27:07Z" lastrevid="1233" counter="8360" length="1685" />
      <page pageid="237" ns="0" title="Data Access Layer - AC Gold" contentmodel="wikitext" pagelanguage="en" touched="2013-11-08T05:41:52Z" lastrevid="1188" counter="168700" length="10298" />
      <page pageid="41" ns="0" title="Data Port Utility" contentmodel="wikitext" pagelanguage="en" touched="2013-01-17T20:21:16Z" lastrevid="252" counter="10684" length="30" redirect="" new="" />
      <page pageid="110" ns="0" title="Data Port Utility FAQ" contentmodel="wikitext" pagelanguage="en" touched="2013-08-15T10:34:26Z" lastrevid="1142" counter="108741" length="7588" />
      <page pageid="13" ns="0" title="Database - AC7" contentmodel="wikitext" pagelanguage="en" touched="2013-08-15T10:31:50Z" lastrevid="1136" counter="73634" length="1515" />
      <page pageid="250" ns="0" title="Database - AC Gold" contentmodel="wikitext" pagelanguage="en" touched="2012-12-13T15:41:41Z" lastrevid="1083" counter="9334" length="149" new="" />
      <page pageid="50" ns="0" title="Development Resources" contentmodel="wikitext" pagelanguage="en" touched="2008-07-19T16:58:25Z" lastrevid="299" counter="31140" length="267" />
    </pages>
  </query>
</api>