Flex
ActiveStripe for HSA/FSA payments
What it does
Flex is a payment platform for businesses to accept HSA/FSA, unlocking the $150B per year sitting in HSA/FSA accounts.
Its site says now · captured 2026-08-23
HSA/FSA Eligible Products: Shop 1000+ Brands | Flex
Browse 1000+ HSA/FSA-eligible brands and thousands of approved products—from vitamins to wellness tech. Spend your pre-tax dollars and save instantly on Flex.
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