Jeki is the currency of the Duendo. The Jeki is a system of animal teeth and claws rather than coins and are taken from various animal; the rarer/more valuable the animal tooth/claw comes from is (and the greater its size), the more it is worth. Jeki teeth/claws are often kept in small leather sacks.

Common materials for Jeki include (from lowest to highest value): dog claws/teeth, cattle claws/teeth, deer/antelope teeth (depends on the region), camel teeth, and hyena claws/teeth.

Less common (and therefore more valuable) materials for Jeki include: , jaguar/tiger/lion claws/teeth (depends on the region) and elephant claws/teeth