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>
    <pageswithprop gpwpcontinue="891" />
  </query-continue>
  <query>
    <pages>
      <page pageid="14" ns="0" title="FNX45" contentmodel="wikitext" pagelanguage="de" touched="2016-06-20T13:50:25Z" lastrevid="6053" counter="41245" length="2818" />
      <page pageid="86" ns="0" title="DayZ Standalone Wiki Deutsch:Impressum" contentmodel="wikitext" pagelanguage="de" touched="2017-03-27T07:56:49Z" lastrevid="6763" counter="18862" length="2895" />
      <page pageid="156" ns="274" title="Widget:Iframe" contentmodel="wikitext" pagelanguage="de" touched="2014-03-17T09:32:11Z" lastrevid="617" counter="199" length="1369" new="" />
      <page pageid="459" ns="274" title="Widget:Like button" contentmodel="wikitext" pagelanguage="de" touched="2014-08-28T12:53:46Z" lastrevid="3147" counter="344" length="1128" />
      <page pageid="504" ns="0" title="AKM" contentmodel="wikitext" pagelanguage="de" touched="2016-02-01T10:09:16Z" lastrevid="6590" counter="80514" length="3316" />
      <page pageid="535" ns="0" title="1911" contentmodel="wikitext" pagelanguage="de" touched="2016-06-20T13:50:25Z" lastrevid="6045" counter="19690" length="2603" />
      <page pageid="536" ns="0" title="1911 Engraved" contentmodel="wikitext" pagelanguage="de" touched="2016-06-20T13:50:25Z" lastrevid="6046" counter="17217" length="2497" />
      <page pageid="542" ns="0" title="CR75" contentmodel="wikitext" pagelanguage="de" touched="2016-06-20T13:50:25Z" lastrevid="6047" counter="17673" length="2103" />
      <page pageid="543" ns="0" title="Amphibia S" contentmodel="wikitext" pagelanguage="de" touched="2016-06-20T13:50:25Z" lastrevid="6052" counter="27079" length="2381" />
      <page pageid="546" ns="0" title="P1 Pistol" contentmodel="wikitext" pagelanguage="de" touched="2016-06-20T13:50:25Z" lastrevid="6044" counter="23528" length="2654" />
    </pages>
  </query>
</api>