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>
    <allredirects garcontinue="宇宙ミ基地建設|8707" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1125" ns="0" title="Hakoniwa R.A.のコマンド一覧" />
      <page pageid="1927" ns="0" title="スライム" />
      <page pageid="8673" ns="0" title="いのらSP" />
      <page pageid="8715" ns="0" title="魚売却" />
      <page pageid="8718" ns="0" title="地下マップ" />
      <page pageid="8742" ns="0" title="周囲1Hex" />
      <page pageid="8743" ns="0" title="周囲2Hex" />
      <page pageid="8744" ns="0" title="周囲3Hex" />
      <page pageid="8767" ns="0" title="黄金期" />
      <page pageid="8784" ns="0" title="湿度" />
    </pages>
  </query>
</api>