Byzantine is now live!

Make your cash work
between invoices

Put available cash to work in a safe, liquid way, earning yield while staying accessible whenever you need it.
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Benefits

Built for Flexibility, Simplicity and Control

Smooth Income Gaps
Earn yield on available cash while waiting for invoices or client payments, helping reduce the impact of irregular income.
Keep Cash Accessible
Withdraw your money whenever you need to cover expenses, taxes, or unexpected costs.
Earn with Peace of Mind
A conservative, risk-managed approach designed to prioritise capital protection while earning yield.
Plan with Confidence
Predictable returns make it easier to anticipate cash availability across months with uneven income.
Interactive Calculator

See what your treasury could earn with Byzantine

Byzantine Prime offers a stable, cash-plus yield that compounds every 6 hours. Use the simulator below to project how your treasury balance could grow over different allocation sizes and time horizons.

Your numbers

Current Treasury
$100,000
Monthly Burn Rate
$1,000
Time Horizon
30Y
You’re earning a base of 8.25% APY
Investments
Yield
Monthly yield
Net Burn
Runway
MMFs
2%
$6,667
-$143,333
14.0 months
Byzantine
8.25%
$16,667
-$135,122
14.7 months
That's
$80,000
extra per year
+0.7 months
runway extension
Steps

How Byzantine Prime works

A simple, institutional onboarding flow.
Step — 1
Open your Byzantine Prime account
Complete onboarding through our institutional portal, select your custodian (Anchorage, Zodia, or similar), and configure treasury access controls.
Step — 2
Fund your vault through your custodian
Your custodian converts EUR to USD stablecoins and deposits them into your segregated Byzantine Prime vault.
Step — 3
Capital is deployed to over-collateralised lending markets
Borrowers post excess collateral before accessing liquidity. Positions are continuously monitored and automatically liquidated if collateral weakens.
Step — 4
Withdraw anytime, without lockups
Your treasury can request withdrawal at any time. Funds typically settle within minutes thanks to Byzantine’s structured liquidity buffers.
Our reviews

What our Clients say

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Partner at Mage
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Natus Parlus
VC at Loot Capital
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Kevin Rojan
Co-founder at Growth Capital
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Partner at Mage
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Q&A

Answers about safety, controls & treasury operations

What risks should I be aware of?

Byzantine removes market risk, bank counterparty risk, and borrower default risk through over-collateralisation and automated liquidation. The primary remaining risk is technical — related to smart-contract or protocol infrastructure. This is mitigated through multiple audits, continuous monitoring, automated kill-switches, and an optional Aon insurance policy that can compensate for covered technical incidents.

Is my principal protected in all market conditions?

Yes. All loans are over-collateralised and positions are liquidated automatically if collateral value deteriorates. This structure eliminates borrower default risk. Technical risk remains but can be optionally insured through Aon.

How long do withdrawals take in practice?

Withdrawals have no lockup and typically settle within minutes. During high-activity periods, settlement may take slightly longer as liquidity buffers refill, but the process remains intraday. Treasurers retain continuous access to their funds.

What happens to my funds if Byzantine becomes unavailable?

Client assets sit in segregated on-chain vaults and never touch Byzantine’s balance sheet. Even in an operational disruption, treasury assets remain accessible through the underlying smart contracts, supported by continuity procedures.

Can the yield ever turn negative?

No. Byzantine does not invest in rate-sensitive instruments such as T-bills or MMFs. Yield is driven by short-term liquidity demand from over-collateralised borrowers. Credit markets cannot produce negative yields, and the worst historical monthly performance has remained positive.

How do accounting, reconciliation, and reporting work?

Treasuries receive clear statements, real-time dashboards, and monthly reports for accounting and audit purposes. All transactions are on-chain and fully traceable, simplifying reconciliation with existing finance systems.

You still have questions?