TOTP (RFC 6238) time-based one-time password reference. Covers algorithm internals, Python pyotp/Node.js otpauth/Go implementation, otpauth:// URI format, QR code generation, backup codes, rate limiting, security best practices, and database schema.
Scanned 9/7/2026
Install to Claude Code
Skills Directorynpx -y skills add bytesagain/ai-skills --skill totp --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: totp
version: 1.0.0
description: >
TOTP (RFC 6238) time-based one-time password reference. Covers
algorithm internals, Python pyotp/Node.js otpauth/Go implementation,
otpauth:// URI format, QR code generation, backup codes, rate
limiting, security best practices, and database schema.
author: BytesAgain
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: [totp, 2fa, authentication, otp, security, rfc6238]
---
# TOTP Reference
Time-based one-time passwords.
## Commands
| Command | Description |
|---------|-------------|
| `intro` | How it works, apps |
| `implement` | Python/Node.js/Go code |
| `security` | Best practices, backup codes |
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