Craig plans to use some of his earnings from the auction toward new website and app endeavors. The highest bid for the site is currently $10,000. Craig did not disclose the reserve price for Potato Parcel.
The site was previously placed up for bid in May, but failed to gain any traction. Craig said that he was hoping to boost publicity for the site and that the top bid had been $500.
Flippa charges successfully sold sites a flat fee of 10 percent; a company rep says it has facilitated more than $154 million in sales since launching in 2009.
The platform is no stranger to auctioning off viral websites. Matthew Carpentor the creator of ShipYourEnemiesGlitter.com sold his site through Flippa for $85,000 in January.
"It really makes a lot of sense for an entrepreneur to step back and say, 'Yeah, I can get out now and hand this off to someone who can take it to the next level'," said Joseph Carroll, director of websites for Flippa.
Craig's Potato Parcel is not the first spud-inspired mailing service. Mail a Spud, which launched in 2014, ships potatoes with the address and stamps right on the skin. Although not part of the initial concept, the site recently began adding personal messages to their starchy packages.
"We love the business we are in and enjoy sending people potatoes," a spokesman from Mail a Spud told CNBC. "There are definitely no plans to sell Mail a Spud. Even if we were offered 10 times what the numbers say it should sell for we still wouldn't budge."