rsc/2fa
Two-factor authentication on the command line observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
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: 3207
- days_rel: n/a
- days_push: 746
- n_releases_24m: 0
Adoption not part of the score
1963 stars · 175 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A command-line two-factor authentication agent written in Go that stores TOTP and HOTP keys and generates one-time authentication codes. Keys are managed in a simple local keychain file at $HOME/.2fa.
Use cases
- generate 2FA codes from the terminal
- add GitHub two-factor secret to a CLI keychain
- print all current TOTP codes at once
- copy a one-time code to the clipboard
- manage HOTP counter-based tokens on the command line
When to choose
- you want 2FA codes without leaving the terminal
- you prefer a minimal single-binary Go tool
- you need both TOTP and HOTP support with configurable code lengths
When to avoid
- you need encrypted key storage (the keychain file is unencrypted)
- you prefer a GUI authenticator app
- you need QR-code scanning or cloud backup of secrets
Facets
cli-tool · maturity stable
auth cli security security developer-tools cli go totp hotp two-factor-authentication otp keychain command-line macos linux
1 source
- readme: https://github.com/rsc/2fa · fetched 2026-08-28 · ded2f88488bf
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| rsc/2fa | main | 32 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem