Stablecoins as a settlement layer for cross-border payments

Your corridor settles in days through correspondent banks, and moving it onchain raises questions about custody, licensing and which chain to trust.

Symptoms in your system

Payouts into a corridor take days, and the fees are discovered when the beneficiary reports what arrived.
Pre-funded accounts sit in every market you serve, and that working capital does nothing until a payout uses it.
Stablecoin pilots work in a test wallet, and nobody can say who would hold the keys in production.
Treasury moves funds between chains by hand, and a wrong address is final.
Counsel asks which entity is transmitting money in the corridor, and the architecture has no answer.

What we build

Cross-border transfers settle onchain and arrive in local currency, so a payout that took days completes while the customer is still watching it.
Pre-funding falls to what the corridor needs, because value moves at the same time as the payment.
Custody boundaries are written down and enforced: which keys your business holds, which a custodian holds, and what can move without a person approving it.
Stablecoin and fiat balances sit in one ledger, so a customer balance is a single number and reconciliation covers both sides.
Chain and asset choice can change without rewriting the payment flow, so fees or finality on one chain stop being a reason to pause a corridor.
Travel Rule data moves with the transfer, and the receiving institution gets what it needs to accept the funds.

Failures that surface a year later

Chain chosen for low fees, then it reprices or halts, and settlement stops in a corridor you have already sold.
Tokens issued before redemption is designed, so the first large redemption is handled by hand and the reserve report is assembled afterwards.
Onchain transfers booked as a single entry, so gas, spread and failed transactions never reconcile against the fiat side.
Corridors built on an exchange account, which close the day the account is frozen for review.
Licensing left until after launch, so a regulator decides what your entity was doing while the product was live.

Standards and rails

Stablecoin issuance and redemption
ERC-20 and equivalent token standards
FATF Travel Rule
MiCA
Custody and key management with MPC and HSMs
ISO 20022 on the fiat leg

Onchain work we have done

At BVNK we built cross-border rails that moved value between fiat and crypto, and between mobile money networks including M-Pesa and MTN Ghana.

The ledger underneath was multi-currency and crypto-native, with multi-tenant double-entry accounting and account numbers a bank could route to.

We shipped it in 2019, when any crypto exposure could cost a company its Stripe or PayPal account, so the custody and banking boundaries were drawn first.