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Tap or Scan
Hold the card to any phone, or scan the laser-engraved QR. No app required.
Onyx Treasury · Private Wealth Vault
A Swiss Numbered
Account, Rebuilt.
A private wealth vault for traditional currency and digital dollars. One discreet account. One metal key. No name on the account, no searchable trail, no exposure — just confidentiality, fully legal.
Numbered accountFiat + USDCLegal privacy
The Ritual
Three motions.
The vault opens.
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You Are The Key
Authenticate with your fingerprint or face. The card without you is just metal.
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Your Treasury Opens
Balances, transfers, and history — instantly. In your browser, on any device.
Why Metal
Software leaks.
Metal endures.
No App Store
Works on any phone with a browser. Nothing to download, nothing to update.
No Digital Key
The key is physical. It cannot be phished, exfiltrated, or remotely seized.
Biometric + PIN
Two factors at minimum. You are the second key — always.
Laser-Engraved QR
A permanent backup, etched into metal. It never fades, never corrupts.
Identity Sealed
Verified once, then locked inside the vault. Never sold, never shared, never visible.
Premium Metal
Aerospace-grade stainless steel or tungsten. Built to outlast its owner.
The Vault
What Swiss banks
used to do.
Open an account and become a number. To banks, counterparties, and the outside world, your identity does not exist — just an encrypted vault identified by a number. Inside: both worlds of money, under one sovereign view.
Confidentiality from the world · Accountability to the law
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Numbered & Confidential
No name on the account. No searchable trail. Your identity is verified once, then sealed. It is never sold, never shared, never visible — except to a regulator or court with a lawful demand.
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Fiat + Digital Dollars
Hold euros, dollars, dirhams and USDC in one place. Wire in from any bank on earth, flip to crypto, send to a wallet or bank account — instantly.
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Global & Discreet
For wealthy individuals across the Middle East, Africa, Latin America and Europe. Access your treasury in English or Arabic, from anywhere.
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Legal Privacy
The same standard Swiss private banks operated on for a century: confidentiality from the world, accountability to the law. Not anonymous. Not shady. Fully compliant.
Membership
Three tiers.
One quiet account.
Standard
Black metal · QR engraving
On enquiry
- ◆Aerospace stainless steel
- ◆Laser-engraved QR backup
- ◆Biometric + PIN access
- ◆Standard onboarding
Premium
Brushed titanium · NFC + QR
On enquiry
- ◆Brushed titanium body
- ◆Passive NFC + engraved QR
- ◆Priority key replacement
- ◆Dedicated onboarding
Sovereign
24k gold-plate · Full ritual
By invitation
- ◆24k gold-plated finish
- ◆NFC + engraved QR
- ◆Concierge & private liquidity
- ◆Bespoke engraving