Decentralized password vault · Solana

Your passwords.
Shattered.
Everywhere. Safe.

ShardKeep splits every secret with Shamir's Secret Sharing, encrypts the fragments at your device, and scatters the ciphertext across a trust-minimized Bastion network — anchored on Solana. No custodian can read your data. Not even us.

Get the Extension See How It Works
DevNet live Open protocol Zero custody cNFT shard maps
Watch a password shatter
Shamir split 3-of-5 · end-to-end encrypted 0 fragments distributed to Bastions Shard map anchored on Solana as cNFT

Animated illustration: a password is split into fragments and distributed to a ring of Bastion nodes, then anchored on the Solana blockchain.

Three unbreakable guarantees

Built so no one can betray you.

Every architectural decision answers a single question: what if the operator goes rogue?

Shamir's Secret Sharing

Your master secret is split into N fragments where any K rebuild the whole. Lose one and nothing leaks. Lose too many and the vault simply re-provisions.

Bastion Network

Each fragment is stored by an independent Bastion operator across the network. No single host holds enough of anything to matter. Operators stake SHRD and earn per shard.

Zero Trust Operators

Bastions see only ciphertext. Wardens see only routing. You are the only party who can reassemble the plaintext. Cryptography — not policy — makes it so.

Industry First · Knight tier and above

The first wallet-based 2FA
in password-manager history.

Every other vault puts your second factor on their server: email OTP, SMS, authenticator apps, recovery keys they generate. ShardKeep puts it on a second Solana wallet you control — different device, different seed phrase. Both wallets co-sign registration; either can trigger Emergency Lockdown. No OTP provider to compromise. No SIM to swap. No app to lose.

No SMS No email OTP No authenticator app Just cryptography
How it works

From a single keystroke to a
galaxy of ciphertext.

Enter a secret

You type your password into the ShardKeep browser extension. It never leaves your device in plaintext.

Shamir splits it

Client-side math breaks the secret into K-of-N fragments. Any K rebuild it; K-1 reveal nothing.

Fragments scatter

Encrypted fragments fly to independent Bastion operators worldwide. Each holds a useless piece.

Anchored on Solana

A compressed NFT on Solana records where the fragments live — the only thing you ever need to keep.

Dive into the full walkthrough
Run a node · earn SHRD

Three tiers.
One decentralized chessboard.

Every Bastion stakes real capital and earns SHRD for serving the network. Bond amounts are denominated in SHRD; the USD equivalents below assume the current target peg.

Sentry

10,000 SHRD bond  ·  ~$10 equivalent
  • Lightweight node, runs on laptop or in-browser
  • Performs availability challenges & audits
  • Entry-level — anyone can spin one up
Learn more →

Bastion

100,000 SHRD bond  ·  ~$100 equivalent
  • Stores encrypted shard fragments
  • Earns SHRD per epoch (14 days)
  • 99% uptime required
  • Applications open — DevNet first
Learn more →

Warden

500,000 SHRD bond  ·  ~$500 equivalent
  • Network coordinator & validator
  • Routes reassembly requests, issues session JWTs
  • 99.5% uptime required
  • Admin-vetted — limited seats
Learn more →
Apply to run a node
SHRD
The SHRD token

Work is staked. Storage is paid.
Everyone gets skin in the game.

Operators stake SHRD to earn the right to serve the network. Users pay a small fee per vault, denominated in SHRD. A treasury funds public goods: audits, client software, protocol grants.

See the tokenomics → Roadmap to MainNet →
Open. Auditable. Inevitable.

Custody is a lie.
Let's break it together.

ShardKeep is building the password layer the decentralized internet always deserved. Install the extension, run a node, or both.

Install the extension Become an operator