Binkey – Find and Pay for FSA money uses and HSA Eligible Items Online; Binkey empowers you to easily identify eligible product online and pay for eligible expenses using our one-of-a-kind health wallet. Binkey’s chrome extension lets you instantly find things you can buy with an HSA and FSA card as you shop on any online store. Select Binkey at checkout for the easiest way to use your HSA and FSA eligible products money for approved expenses.