Sovrency Silicon Key
A hardware crypto wallet built for stablecoins - no seed phrase to write down, and no single point of failure. Sovrency C8 works together with the Sovrency Wallet app to give you hardware-grade security that feels as simple as a payment app.
Sovrency CARD8
$999
Estimated Shipping: Q1 2027
System Overview
Sovrency C8 is a hardware wallet designed around one idea: serious security shouldn’t be hard to use. Instead of protecting your crypto with a single private key — and a seed phrase you can lose — it uses MPC (multi-party computation) to split your key into separate shares that are never brought together in one place. One share lives on your phone, one on the wallet itself, so there is no single device, server, or piece of paper that can compromise your funds.
Setup takes minutes in the companion Sovrency Wallet app: no seed phrase to write down, nothing to photograph or hide. When you send funds, you review and confirm every transaction on the wallet’s own E-Ink touchscreen, with fingerprint authentication built in. The app launches in select regions first, with more added over time (see “The App” below).
2.84" E-Ink Touchscreen
16-Grayscale Display
Fingerprint Authentication
MPC on Secure Element
About MPC
Unlock the Full Power of Distributed Security // What is MPC and Why it Matters
Experience the advantages of a fully coordinated MPC system. From hardware-backed signing to seamless recovery logic, Sovrency delivers advanced protection without complicating your workflow—security that scales with your needs.
NEW: Traditional wallets protect your crypto with one private key in one place — one device to break, one seed phrase to steal. MPC (multi-party computation) works differently: your key is created as separate shares that sign together, without ever being assembled into a single key. Signing a transaction always takes more than one share — so no single device or party can move your funds alone, and losing one device doesn’t mean losing your crypto.
Backed Actions
Every approval verified with the Sovrency CARD8.
PasskeyFirst Security
Built for Stablecoins
Support for USDT and USDC
Manage assets across different networks with seamless switching.
Transaction Preview
Backup & Recovery
Recovery without handing control to anyone.
MPC Engine Performance
Fast signing with no friction.
The App
Your wallet works together with a companion app that keeps everyday use simple, while the hardware keeps signing secure.
Send and receive stablecoins with a payment-app-simple flow
See your balances and full transaction history at a glance
Set up your wallet in minutes — no seed phrase
One-tap encrypted backup to your personal cloud
Confirm every transfer on your hardware wallet’s screen
Available in English, French, Spanish, Portuguese (BR), and Simplified Chinese
App Availability
We ship worldwide — you can pre-order from anywhere right now.
The Sovrency Wallet app will first be available in a limited set of regions, with more added over time:
Security & Verification
Biometrics, secure‑element isolation, and SignSight intent checks ensure every approval is genuine, while supply‑chain validation guarantees your Silicon Key is authentic and uncompromised.
Internal Hardware
Powered by CrossBar, Inc.'s Daric: The First Secure Processing Unit Built for Self-Custody.
One die holds the CPU, the crypto engine, and ReRAM key storage. There is no bus to tap, nothing to read back, and a chip design you can inspect. Your CARD8 proves it's genuine every time it pairs.
22 nm ReRAM
Nothing to read back
One die
No bus to attack
Attested
Verified at pairing
RISC-V
Open core, open RTL
Post-Quantum
Upgradeable in place
FIDO2
Passkeys on the card
Questions Answered
