mdp/rotp
Ruby One Time Password library observed · 2026-08-28
Health v2 · maintenance only
47/100
- Activity 53
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5680
- days_rel: n/a
- days_push: 282
- n_releases_24m: 0
Adoption not part of the score
1657 stars · 481 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A Ruby library for generating and validating one-time passwords (HOTP and TOTP) according to RFC 4226 and RFC 6238. It is compatible with Google Authenticator and other TOTP-based apps and is commonly used to add multi-factor authentication to web applications.
Use cases
- add two-factor authentication to a ruby or rails app
- generate TOTP codes compatible with Google Authenticator
- verify HOTP one-time passwords per RFC 4226
- generate base32 secrets for user MFA enrollment
- implement time-based OTP login verification with drift tolerance
When to choose
- you need standards-compliant HOTP/TOTP generation and verification in Ruby
- your users authenticate with authenticator apps like Google Authenticator
- you want a small, mature, MIT-licensed gem with minimal dependencies
When to avoid
- you are building a new 2FA solution today and can use WebAuthn instead
- you need push-based or SMS-based multi-factor authentication
- you are not working in Ruby
Facets
library · maturity maintenance
auth cryptography security security developer-tools web-development ruby otp totp hotp two-factor-authentication rfc4226 rfc6238 google-authenticator
1 source
- readme: https://github.com/mdp/rotp · fetched 2026-08-28 · e41b7aa26679
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| mdp/rotp | main | 47 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem