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>
    <backlinks gblcontinue="0|Main_Page|892" />
  </query-continue>
  <query>
    <pages>
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      <page pageid="629" ns="0" title="HowTo Compile In MDK" contentmodel="wikitext" pagelanguage="en" touched="2014-08-18T20:01:56Z" lastrevid="17462" counter="126577" length="8051" />
      <page pageid="632" ns="2" title="User:Jacobo221" contentmodel="wikitext" pagelanguage="en" touched="2021-04-22T15:06:00Z" lastrevid="11223" counter="16603" length="227" />
      <page pageid="700" ns="4" title="AMule Project FAQ:FAQ" contentmodel="wikitext" pagelanguage="en" touched="2012-10-13T21:24:21Z" lastrevid="8098" counter="9788" length="821" />
      <page pageid="724" ns="0" title="Getting Started" contentmodel="wikitext" pagelanguage="en" touched="2012-01-14T06:21:44Z" lastrevid="28414" counter="828614" length="21619" />
      <page pageid="773" ns="4" title="AMule Project FAQ:Policy" contentmodel="wikitext" pagelanguage="en" touched="2012-11-26T13:33:03Z" lastrevid="18510" counter="48994" length="3220" />
      <page pageid="792" ns="2" title="User:Triturator" contentmodel="wikitext" pagelanguage="en" touched="2014-01-06T11:12:29Z" lastrevid="11391" counter="5211" length="306" />
      <page pageid="844" ns="0" title="HowTo Compile In RedHat-Fedora" contentmodel="wikitext" pagelanguage="en" touched="2010-12-22T11:00:29Z" lastrevid="27657" counter="293687" length="31896" />
      <page pageid="882" ns="0" title="Translating Wiki" contentmodel="wikitext" pagelanguage="en" touched="2014-01-01T12:00:38Z" lastrevid="25991" counter="71240" length="1845" />
    </pages>
  </query>
</api>