Alternatives

Products that do what Synchronize OTP credentials across multiple Yubikeys does

A YubiKey, among other use cases, can be used to store OTP credentials and generate one-time passwords. If you are a YubiKey user, chances are you have multiple YubiKeys for redundancy and/or convenience. yop is a command line tool that allows keeping OTP credentials on multiple YubiKeys in sync.

1
OnlyKey DUO▲88
Open source Yubikey alternative with dual USB-C and USB-A
2021
2
OnlyKey▲118
OnlyKey is an open source alternative to YubiKey
2019
3YA
Yubikey-agent – an easy to use Go ssh-agent for YubiKeys▲152
2020 · github.com
4
Simple OTP 2.0▲131
Passwordless, source-code-included auth for your website
2024
5
YubiKey 5Ci▲129
Security key with dual support for USB-C and Lightning
2019
6
EnvKey▲79
Protect api keys and credentials. Keep config in sync.
2017
7
GenerateOTP▲90
A simple API to generate and validate OTP codes
2019
8YH
YubiKey HMAC-SHA1 support for KeePassX▲32
2014 · github.com
9
YubiKey NEO▲102
Hardware-based authentication
2018
10
SoloKeys▲139
Secure login made open and easy 🔒
2018
11
2FA to Tray▲91
The missing 2FA manager for macOS.
2020
12
MiniKey▲103
The simplest 2FA app for Mac
2021
13
Context Sync▲95
Persistent AI memory across Claude Desktop & Cursor IDE
Oct 2025
14
OtpNinja▲80
Setup OTP API easily
2021
15
VibeShift MCP▲141
Get secure, working code in 1 shot
2025
16
ToDoBot for Chrome▲129
A shared to-do list for Chrome and Slack
2020
17
Vibe Manager▲88
Sync AI coding configs across Claude, gemini,Cursor & Codex
Nov 2025
18MY
My Yubikey Setup with Pass▲5
2020 · captnemo.in
19AO
Auto-OTP: automatically send and receive OTPs, end-to-end encrypted▲20
2022 · auto-otp.com
20OS
Ots – share a secret via one-time URL (a simple Go CLI)▲19
2021 · github.com
21OO
Obsidian - OTP Authenticator▲36
2021 · obsidianapp.io
22LO
LlaMaKey – One master key for all cloud LLM/GenAI APIs▲6
Key management for multiple users and multiple cloud LLM/GenAI APIs is difficult to be both safe and convenient. Sharing keys among users risks leaking the key and makes it difficult to curb the leakage without interruptions. But assigning one key per user per cloud API results in too many keys to keep track of. Meet LlaMa(ster)Key, the secure and easy solution for API key management: * For each user, one master key for multiple APIs. * The master key is unique to each user. Granting and revoking a user's access won't impact other users. * The actual API keys to authenticate with cloud…
2024 · github.com
23YN
Yupno – No-login RSVP tool with REST API and webhooks▲5
Hi HN, I got tired of having to register and having friends having to register accounts just for accepting a party or dinner invitation (also plenty of friends have left social media) so I coded a minimal, no-login event tool: https://yupno.com Dev-friendly stuff: Full REST API, async webhooks for RSVPs with Slack/Discord-adapted payloads. Auto-generates Ical, JSCalendar and JSON-LD. No auth, uses admin/user tokens in url. Should be possible connect to other stuff in fun ways. Free to use, no ads, no tracking. I just wanted a simple tool that respects my time and privacy.…
Jan 2026 · yupno.io
24YA
Yapyap – a simple and fast dictation for Linux using whisper.cpp▲7
I was looking for a push-to-talk tool that allows me to just paste my speech transcription automatically into whatever application I'm using. I wasn't able to find anything simple enough that works, so I built my own. For now, it's just a basic CLI that works on Linux only using whisper.cpp. It is incredibly simple. You hold down the buttons, say stuff, release and then it will pipe the transcription lines to stdout. I'm using it to write this comment :)
Sep 2025 · github.com

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