Chicago-based Coinflip has begun rolling out Bitcoin ATMs across Southland and Otago.
It installed one at the Caltex petrol station in Great King St, North Dunedin, about three weeks ago.
Another three ATMs have been installed in Invercargill and one in Queenstown.
Caltex owner Stephen Pulley said he did not know much about the ATM.
"I don’t know how it works. I’ve never been involved in Bitcoin. It’s out of my league, I’m too old for that."
He said it was a no-brainer for him to let Coinflip install the machine at his Caltex because he did not have to do anything and he received rent for it.
He had seen a couple of people using the machine so far.
University of Otago blockchain researcher Olivier Jutel warned that customers should be cautious about using the ATM.
He said Bitcoin ATMs were a bit of a publicity stunt because crypto was not a currency, but rather a "speculative financial asset".
The ATMs could only be used as "portals" to wallet apps to store the currency.
Coinflip did not respond to the Otago Daily Times’ questions.
