You could probably pull the data with DirectX hacks and feed the bot that way. The only issue would be having the bot do the searches in order to get the data, besides that it wouldn't be much trouble. As it is right now some items like crafting materials give you the average price for items sold. For other items you could have the bot look for items with certain stats that are being sold vastly under priced, buy, and re-list at a higher price.