This topic is a continuation of the discussion from.
http://forums.elderscrollsonline.com/discussion/94903/question-to-modders-is-it-possible-to-make-an-ah-using-mod-tools#latest
There is a game called Path of Exile that has an external website for brokerage house. The game itself doesnt actually have one or even standard currency. Such a thing should be possible using a combination of the addons for guild store/banking.
Basicially when a user is online they can go the to brokerage website to list their items they could be pulled from the addon, this is probobaly not a light undertaking but should be fairly self sufficient once done. The way POE works is that items on their external website have a "verified"/online option.
it should be possible that the addon chks users bank/inventory when they are online and go to a bank. It could time stamp that chk and verify to the external host that the item is available as of xx:xx time/date.
The persons
@name is listed by the item when somebody wants to buy an item they simply pst the person in game. This is exactly how Path of Exile's system works.
There is obviously an issue here of how to "support" such a site from an infrastructure standpoint. What I can offer is access to external hosted server to which this can be setup/tested on. I am sure that it could be supported with ads much like any website like esoui.com for the addons etc.
I have an AWS (amazon web services) account which i can initially be the admin for such a server run on a linux host using w/e software. This system can be scaled infinetly if it became popular VERY easily. AWS is 3rd largest hosting provider and I know that ESO even uses some of their services for CDN, (content delivery network). for their own systems.
I believe we can setup something that doesn't violate TOS and am willing to discuss this further privately with people and at some point with somebody from Zenimax about any concerns they may have. This system should not effect ESO servers directly at all as all "work" is from the peer and external server.