This corporate and professional domain would be perfect for a crowdsourcing, finance or investment company.
The name "PayApex" has seven characters and just two syllables. Two-syllable names are very rare and extremely desirable. Leading companies using two syllable names include Twitter, Dropbox and Kleenex.
Payapex.com is a .com domain. Dot com domains are the most prestigious top-level-domain in the world, famously used by websites like twitter.com. When most people think of a website, they think of a .com.