Secure Authentication2026-10-13T18:46:19+02:00

Log In With a Tap. No Password Required.

Passwords and SMS codes get intercepted. There is a better way.

Seedkeeper PRO is a FIDO2 certified passkey device and offline 2FA generator in one ring or card. Tap to log into your accounts – no password to type, no code to copy, no phone to reach for. Just you and your device, doing the job in one tap.

  • FIDO2 L1 Certified
  • EAL6+ Secure Element
  • No SMS Code Required
  • Zero Cloud Dependency

  • 100% Open-Source

Seedkeeper Pro - Illustration - Cloud danger

The Way You Log In Today Is Holding You Back

Every day, millions of accounts are compromised through methods that should no longer exist – passwords guessed from a data breach, SMS codes intercepted by a SIM swap attack, login pages faked well enough to fool anyone in a hurry. The security advice hasn’t changed in twenty years: use a strong password, enable two-factor authentication, don’t reuse anything. Most people know this. Most people still get hacked.

The problem isn’t behaviour. It is architecture. Passwords are shared secrets – the moment you type one, it exists somewhere it can be stolen. SMS codes travel over a network that can be hijacked. Even authenticator apps on your phone are only as secure as the device they live on.

Seedkeeper PRO replaces both with something fundamentally different. A passkey that never leaves your device. A 2FA code generated offline with no network involved. Authentication that works by proving you have the right hardware – not by transmitting a secret that can be captured.

Secure Authentication With Seedkeeper PRO

Only available on Seedkeeper PRO card & ring

Seedkeeper Pro - Illustration - One tap passkey login

Tap to Log In – No Password, No Code, No Friction

Click “Sign in with passkey” on any supported website or app. Tap your Seedkeeper PRO ring or card to your phone. Enter your PIN. You are in. No password typed. No code copied from a separate app. No second device needed. The whole process takes under five seconds – and it is more secure than any password you have ever used.

Seedkeeper Pro - Illustration - Many App supported

Works Where You Already Work

Seedkeeper PRO works as a passkey device for Google, Microsoft, GitHub, Dropbox, Amazon, and thousands of other platforms that support the FIDO2 and WebAuthn standard – the same open standard backed by Apple, Google, and Microsoft. If a website has added passkey support, Seedkeeper PRO works with it. No special configuration, no compatibility issues, no extra steps.

Seedkeeper Pro - Illustration - 2FA Codes

Your 2FA Codes – Without Your Phone

Some accounts still require a one-time code rather than a passkey. Seedkeeper PRO generates those codes too – offline, inside the device, with no network connection required. No authenticator app on your phone to lose when you change devices. No SMS code to intercept. Just tap your ring or card, open the app, and your 2FA code is there – whether you have signal or not.

Seedkeeper Pro - Illustration - Phishing resistant

Phishing Resistant – by design

Passkeys are bound to the exact domain of the website that created them. If you tap to log into what looks like Google but the URL is even slightly different – a fake login page designed to steal your credentials – your Seedkeeper PRO simply will not authenticate. There is no code to trick you into entering, no password to harvest. The device knows the difference even when you can’t.

Seedkeeper Pro - One ring for your secrets

One Device – Both Authentication Methods

Not every platform has adopted passkeys yet. Seedkeeper PRO handles both – passkey login for platforms that support it, offline TOTP codes for those that still require a traditional 2FA method. As the web moves toward passwordless, your device moves with it.

Available on Seedkeeper PRO

Seedkeeper Pro - Card

PRO – Smartcard

  • FIDO2 passkey login + offline TOTP + password manager
  • Works via NFC and smartcard reader
  • From €35
Seedkeeper Pro - Double Ring

PRO – Ring

  • FIDO2 passkey login + offline TOTP + password manager
  • Works over NFC only

  • From €75

Looking for password management without passkeys? Seedkeeper Classic starts at €25.

Frequently Asked Questions

What happens if I lose my Seedkeeper PRO device?2026-07-14T16:22:50+02:00

A lost device cannot be used by anyone who finds it – accessing passkeys requires your personal PIN.
For recovery, passkeys can be re-registered on a replacement device by logging in via an alternative method (email, backup code) and setting up the passkey again.
This is why setting up a backup device on day one is strongly recommended – it makes recovery from a lost device a matter of minutes rather than a crisis.

What is TOTP and why is it better than SMS codes?2026-10-05T22:47:13+02:00

TOTP stands for Time-based One-Time Password – a six-digit code generated locally on your device using a shared secret and the current time.

Unlike SMS codes, which travel over the cellular network and can be intercepted via SIM-swapping attacks, TOTP codes are generated entirely offline with no network transmission involved.

Seedkeeper PRO generates these codes inside the device’s secure element – meaning the secret behind your codes never touches your phone’s operating system or any external server.

Which websites and apps support passkeys?2026-07-14T16:20:55+02:00

Passkey support is growing rapidly. Today, Google, Microsoft, GitHub, Dropbox, Amazon, PayPal, and thousands of other platforms support FIDO2 passkey login. Any website or app displaying a “Sign in with passkey” option is compatible with Seedkeeper PRO.
The FIDO Alliance maintains a public directory of passkey-compatible services – and the list grows every month as more platforms adopt the standard.

What is a passkey and how is it different from a password?2026-10-05T22:47:25+02:00

A password is a shared secret – you create it, you type it, and a server stores a version of it.

Every time you log in, that secret travels across the internet in some form, which means it can be stolen, guessed, or leaked in a data breach.

A passkey works differently: your device generates a unique cryptographic key pair – a private key that never leaves your device, and a public key stored by the website.

Login happens by proving you hold the private key, with nothing sensitive ever transmitted. There is nothing to steal, nothing to guess, and nothing to leak.

Your Device.
Your Control.

FIDO2 certified. Phishing-resistant by design.
Always offline. Always yours.

Seedkeeper Pro - Products illustrations
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