Flex Technology Co is a Shopify app developer based in San Francisco, California that makes Flex Marketing, a page builder app on the Shopify App Store. It provides a marketplace of HSA/FSA-eligible products. It carries Shopify's Built for Shopify badge. It has a free plan.
Overview
Flex Technology Co provides HSA/FSA payment acceptance for merchants. Its documentation covers account setup and integration of HSA/FSA payments, a developer API, and compliance resources on eligibility and IRS substantiation.
Products
- Flex HSA/FSA payments Lets merchants accept HSA/FSA payments, with setup guides and integration documentation.
- API Reference Developer API documentation for integrating with Flex.
- Flex MCP Connects Claude, Cursor, and other AI assistants to a Flex account.
- Compliance Hub Explains how Flex determines eligibility, meets IRS substantiation requirements, and works with telehealth partners.
Integrations
Buyer notes
- Compliance Hub documents IRS substantiation requirements and how Flex works with telehealth partners.
- Marketing resources and assets are available for promoting Flex HSA/FSA payments.
- A support page and a status page are linked from the documentation.
From Flex Technology Co's own site and Shopify App Store listings, as of 2026-10-20.
On the Shopify App Store
- Built for ShopifyFree planLaunched 2025Page builder
Use the included template blocks to easily and quickly add branding as well as an information modal that explains the process to your customers of ...
Ratings, reviews, plans, prices and descriptions as the Shopify App Store lists them. how we count.
What Shopify apps does Flex Technology Co make?
Flex Technology Co has 1 app on the Shopify App Store: Flex Marketing.
How much does Flex Technology Co cost?
It has a free plan.