How can I get the exact item specifics for an ebay item? (only the ones that match on this item not category aspect histogram).
GetSingleItem (Shopping API) call will enable you to retrieve the item specifics for a specific listing.
Here is a sample request - http://open.api.ebay.com/shopping?callname=GetSingleItem&responseencoding=XML&appid=AppID&siteid=0&ItemID=140519246170&IncludeSelector=ItemSpecifics&version=1199
The above request will return all the public details about the item including the item specifics