Tradewise was using automated software to spider through Trade Me's site, taking online auctions and re-packaging them under its own banner.
Trade Me's managing director Nigel Stanford says the owner of Tradewise had apologised to Trade Me.
"They said they didn't really imagine we'd have any problem with it, but we have to be careful to protect our intellectual property."
Joanne Martin, the listed contact for Tradewise, did not immediately return Computerworld Online calls. The Tradewise site now contains a series of links to other online auction sites and a message:
"The purpose of the site was to provide the trading community with a valueable [sic] pre purchase resource. Unfortunately, some auction sites did not wish to participate in our vision, negating the value of it."
According to Stanford "without Trade Me, they decided there probably wasn't any point having an auction search engine in New Zealand."