Ship of Heroes will have crafting, trading, gathering, harvesting, etc. and part of the trading system is an auction house. At present, little is known about these systems apart from some interesting information disclosed in a Youtube Video.

The building, situated in Apotheosis City, shown in the video was described by Casey McGeever as a placeholder but it looks quite detailed and, even at that stage, had a basic structure in place. The above link to the video starts at the location where the auction house is being discussed.