Enchanting Items - How to convert spellID to produced itemID
 

In Classic and Burning Crusade Classic, most enchanting recipes result in an enhancement to an item. There are, however, a few cases where an actual item is produced. For example, Lesser Magic Wand, Wizard Oil, Mana Oil, etc. There are rods as well, but I believe they are all BoP so they aren't as interesting.

Is there an API to convert the spellID where an actual item is produced to the itemID of the item?

Skillet-Classic (with the help of AH plugins) can list the value of an item and the value of each of the reagents resulting in a profit margin. To do this for Enchanting requires the above conversion.

In retail, enchanting vellums change the game so Skillet (for retail) needs to do something different.