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Multi-currencyOn-chain FXAtomic swap

Settle across currencies without a correspondent bank.

A corridor that swaps and settles between regulated local stablecoins on-chain — no nostro accounts, no intermediary holding the float.

Payments · FX · Settlement · A cross-border payments operator · under NDA
In plain terms

Moving money between currencies the old way means correspondent banks, pre-funded accounts in each country, and days of waiting while everyone settles up. Here, regulated local stablecoins are swapped and settled in a single on-chain transaction — the exchange and the transfer happen together, in seconds, with nobody holding your float in between.

By the numbers
Days
Seconds
Correspondent banking
On-chain corridor
Relative time to final, irreversible settlement across a currency pair.
The challenge

Moving value between currencies meant correspondent banks, pre-funded accounts, and days of settlement risk on every leg.

Atomic
swap + settle
0
correspondent banks
Seconds
to final
What we built
  • 01On-chain FX between regulated local stablecoins
  • 02 swap-and-settle — the trade and the transfer are one transaction
  • 03Pricing and limits enforced in contracts they operate
Outcome

Cross-currency value moves and settles atomically in seconds, with no correspondent bank holding the float in the middle.

How it’s wired

The architecture, end to end.

Each box is a primitive we wrote and you own — legible all the way down, no black-box vendor in the path. Value flows left to right.

1Local stablecoin

Value starts in a regulated local stablecoin the operator supports.

2On-chain FX

Price and limits enforced in contracts the operator runs.

3Atomic swap

The trade and the transfer are a single, all-or-nothing transaction.

4Final settlement

Counter-currency value is final in seconds — no correspondent float.

Before / after
Correspondent banks · days, pre-funded
On-chain corridor · seconds, atomic
How we build it
  • On-chain where enforcement matters; in your infrastructure where operation matters.
  • Non-custodial by default — keys and funds stay with their owner.
  • Audited line by line, then handed over: repository, runbook, and proofs.
The difference, point by point

Legacy vs the system we built.

The legacy wayWith Govart
SettlementDays, leg by legSeconds, atomic
Pre-fundingNostro accounts everywhereNone
IntermediariesCorrespondent banksNone
FX + transferSeparate stepsOne transaction
The stack we built

Primitives, not black boxes.

Each layer is code you own and can read — written in-house, audited, and handed over. No rented dependency in the path of your money.

01

On-chain FX

Swap between regulated local stablecoins at rates you enforce.

02

Atomic swap-and-settle

The trade and the transfer are a single, all-or-nothing transaction.

03

No correspondent float

Nobody holds your money in the gap between the two legs.

What we hardened

Built as if it’ll be attacked.

In crypto, one mistake is terminal. We threat-model before we build — here’s what could go wrong, and what stops it.

The risk

Days of settlement risk pile up on every leg.

How we guard it

Atomic settlement — final in seconds, all-or-nothing.

The risk

Pre-funded nostro accounts tie up working capital.

How we guard it

No pre-funding; the corridor settles on demand.

The risk

A correspondent bank holds the float.

How we guard it

No intermediary sits in the flow.

Handover

Yours at the end. All of it.

The engagement ends — that’s the point. What stays is everything you need to run and extend the system without us.

The repository

Every contract and service, commented and documented — nothing withheld, no black box.

Audit reports

Internal review plus an independent third-party audit, your engineers reading along.

The runbook

How to operate, monitor, upgrade and recover — written for your team, not ours.

Keys & training

Full control transferred, and your engineers walked through it until it's theirs.

Settlement across currencies, no correspondent in the middle.
A cross-border payments operator, anonymized

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Disclaimer

Govart provides software engineering, technical advisory, and infrastructure services only. We advise on technology — not on financial, investment, legal, tax, or accounting matters. Nothing on this site is advice, an offer, a solicitation, or a recommendation.

We are not a bank, broker, custodian, exchange, payment processor, money-services business, or virtual-asset service provider, and we never hold, transmit, or take custody of client or end-user funds.

KYC, AML, sanctions screening, licensing, and regulatory compliance remain the responsibility of the operator that owns and runs each deployed system. We build the controls you specify; we do not act as your compliance function. Figures and examples shown are illustrative only.

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