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Documentation Index

Fetch the complete documentation index at: https://docs.withflex.com/llms.txt

Use this file to discover all available pages before exploring further.

Flex HSA/FSA Documentation

Learn how to get started with Flex HSA/FSA payments.

Let’s get started

Developer Guides

Complete guides for integrating HSA/FSA payments with Flex.

API Reference

Comprehensive API reference for developers using Flex.

Flex MCP

Connect Claude, Cursor, and other AI assistants to your Flex account.

Marketing

Resources and assets to help promote Flex HSA/FSA payments.

Changelog

Latest updates and improvements to Flex.