Validate TOTP Token - No Credential Setup Required

This workflow provides a straightforward TOTP validation mechanism using a Python function node in n8n. It takes a base32-encoded TOTP secret and a 6-digit user code as inputs, generates the expected code from the secret, and compares them. Outputs 1 for valid matches and 0 otherwise, routing through an IF node for true/false branches.

Key benefits include no need for n8n credentials, full customizability, and prevention of leading zero issues by treating codes as strings. It's lightweight, secure, and integrates easily into larger auth systems, saving development time on 2FA logic.

Use cases: Validate user-provided 2FA codes after retrieving secrets from databases; enhance login flows in apps or APIs; test TOTP implementations without external services. Setup involves modifying lines 39-40 in the code node for your inputs and testing via the manual trigger.