Binkey is a Washington-based financial technology company that has developed an API enabling merchants to accept pre-tax health benefits, such as Flexible Spending Account (FSA) and Health Savings Account (HSA), as a form of payment. This allows customers to save on health expenses by using their FSA or HSA at checkout. Founded in 2022, Binkey helps merchants streamline their payment processes and increase customer convenience by accepting FSA and HSA payments.