Software studio · Stablecoin & digital-asset infrastructure
soonish builds exchange engines, non-custodial wallet infrastructure and stablecoin settlement for regulated fintech — RFQ execution, MPC key management, batch netting, and the reconciliation that keeps an auditor satisfied.
Custody exists in one step of six, for minutes, by construction — then the asset is swept to a wallet the customer holds and the platform's own balance is back to zero. Everything else in finance settles soonish; this is the part that shouldn't.
We don't take general software work. Every engagement is one of these or a combination of them, because that is where a decade of regulated market-infrastructure scar tissue is worth paying for.
RFQ across liquidity providers polled in parallel, with failover and firm
quotes held long enough to be honoured. Best-execution evidence you can
hand a regulator, and a single price to the customer — no order
book, no charts, price = execution.
MPC key management with no seed phrase and no company-held share, so the balance you would have to defend in an incident is zero and publicly verifiable. Plus the recovery flows that stop self-custody from meaning twenty-four words on a customer's kitchen table.
Convert on arrival, sweep in minutes, convert back in flight. On- and off-ramp wired to real fiat rails so the platform never has to sit on customer money simply to function — the slowest, most expensive part of most crypto businesses.
Match internal flow at mid before anything reaches a provider. Thousands of recurring orders collapse into one execution, and provider cost drops by an order of magnitude. Detailed below.
Double-entry, multi-currency, multi-entity, with balances derived from entries rather than stored and hoped for. Every state change logged and every position reconcilable against both the provider and the chain.
Recurring buys are the easiest flow in fintech to execute badly. Sent to market one by one, a scheduled-purchase book pays a provider spread on every order. Matched internally first, most of that turnover never leaves the building.
5,000 buys against 200 sells, batched into a single execution instead of 5,200 round trips.
Buyers matched against sellers at the mid price. Both sides get a fair fill and neither pays a provider for it.
Down from the tens of basis points a naive order-by-order implementation pays away.
A non-custodial, stablecoin-first savings product built inside a regulated perimeter: money goes in, converts the moment it arrives, and lands in a wallet that belongs to the customer rather than to the company. We are building the engine underneath it.
An MPC wallet with no seed phrase and no key share held company-side. Assets pass through a settlement window measured in minutes, and the company's own balances are publicly verifiable at zero.
No fiat held, at any point. Every deposit converts on arrival and sweeps straight to the customer's wallet; withdrawals convert back in flight to a bank account.
Goals, automatic recurring purchases and the habit that comes with them, behind an interface that behaves like a bank rather than an exchange.
We don't rebuild what a regulated provider already does better. These are the ones we know well enough to wire, monitor and reconcile against without a discovery phase.
Custody & keys
Fireblocks
MPC wallet infrastructure, policy engine and transfer signing.
Wallets & auth
Dynamic
Embedded wallet creation and sign-in without a seed phrase.
Fiat rails
Fiat Republic
Banking and payment rails built for licensed crypto platforms.
Card acquiring
Checkout.com
Card deposits, 3DS and the failure modes that come with both.
Accounts & FX
OpenPayd
Embedded accounts, named IBANs and multi-currency conversion.
Liquidity
Stillman Digital
Digital-asset OTC execution as one leg of the RFQ panel.
Value dates, not vibes. This is the schedule we hold ourselves to, measured from the day the scope is signed.
Forty-five minutes. You walk us through the money flow, we tell you what's hard and what isn't. You leave with a written scope either way.
Running in your stack against provider sandboxes, with the nasty edge cases already wired. Not a clickable mockup.
Live with real money at capped volume, full audit trail, your engineers in the codebase alongside ours.
Documented, tested and yours. We stay on retainer if you want us, and get out of the way if you don't.
Two to four engineers who have shipped regulated market infrastructure before. Nobody sits between you and the people writing the code.
Every state change logged, every balance derivable, every execution evidenced. We build for the version of your company that has a regulator, because it is coming.
TypeScript, Go, Python, Postgres — whatever your team already runs and can maintain after we leave. We are not selling you a platform.
Six fields. An engineer reads it, not a form router, and you get a straight answer about whether we're the right studio for the job.