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>
    <allpages apcontinue="Kako_izraditi_novi_e-mail?" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="37" ns="0" title="Gdje mogu promijeniti e-mail adresu i lozinku za pristup hosting računu (i detalje)?" />
      <p pageid="35" ns="0" title="Gdje mogu provjeriti prostor diska (disk space), promet (traffic), te broj domena, subdomena, baza i ostalog?" />
      <p pageid="12" ns="0" title="Gdje se nalaze glavne postavke za FTP račune, baze podataka, domene, i slično?" />
      <p pageid="1" ns="0" title="Glavna stranica" />
      <p pageid="97" ns="0" title="Joomla - globalna konfiguracija - email" />
      <p pageid="81" ns="0" title="Kako dodati/mapirati domenu u hosts datoteku? (Win/Linux/Mac OS X)" />
      <p pageid="18" ns="0" title="Kako izraditi bazu podataka (i korisnike), te pristupiti istoj?" />
      <p pageid="79" ns="0" title="Kako izraditi bazu podataka (i korisnike)?" />
      <p pageid="14" ns="0" title="Kako izraditi dodatni FTP račun?" />
      <p pageid="73" ns="0" title="Kako izraditi novi FTP račun?" />
    </allpages>
  </query>
</api>