DFNS now supports Circle Mint. Institutions can connect their own Circle Mint account and move money across the fiat boundary directly from their DFNS wallets: send a wire and have freshly minted USDC or EURC delivered onchain, or redeem USDC and EURC back to fiat paid out to a bank account. The full cycle — fiat in → onchain activity → fiat out — now runs on one platform, under one set of controls.
The fiat edges of a stablecoin operation
A stablecoin business does most of its work onchain, but it begins and ends in fiat. Funding wallets means getting dollars or euros converted into stablecoins. Settling to a bank means turning stablecoins back into fiat. Until now, those two steps usually happened somewhere else: a separate Circle dashboard, a separate set of credentials, manual tracking of wires and redemptions, and reconciliation stitched back together by hand. The assets and the controls lived on one platform, the on- and off-ramps lived on another. That gap is operational risk and manual work at exactly the points where money crosses between worlds.
Circle Mint, built into your wallets
DFNS integrates Circle Mint as a native on- and off-ramp for USDC and EURC. You connect your own Circle Mint account once, from the Integrations page, and from then on minting and redemption are operations on the DFNS platform, against your own DFNS wallets, through the same API you already use.
Mint and redemption are 1:1 at the protocol level. The on-ramp turns an incoming wire into minted stablecoin delivered to your wallet. The off-ramp turns stablecoin from your wallet into fiat paid out to a linked bank, in the same currency or, where you need it, converted across currencies. It covers USD and EUR natively, with cross-currency redemption to other currencies through Circle’s exchange.
How it works
The integration adds three surfaces to the API.
Bank accounts. A new endpoint lists and manages the fiat bank accounts linked to your Circle Mint account, with their rail, status, and supported currencies, so you can present a destination picker, check that an account is ready, or retrieve the wire instructions for funding.
On-ramp, fiat to stablecoin. Open an on-ramp and DFNS returns the wire instructions to send fiat in. Once your wire settles, the minted stablecoin is delivered onchain to the destination wallet you specified.
POST /onramps{ "provider": "CircleMint", "destinationWalletId": "wa-dest-sol-...", "asset": { "kind": "Spl", "mint": "EPjF...Dt1v" }, "fiatCurrency": "USD", "amount": "1000000000", "bankId": "bank-1d2e3f"}Off-ramp, stablecoin to fiat. Quote a redemption to see the fiat amount and fees before committing, then create a payout. DFNS moves the stablecoin from your wallet into Circle and pays the fiat out to your linked bank, over the rail you choose, including wire, SEPA, and SEPA Instant.
POST /payouts{ "provider": "CircleMint", "walletId": "wa-source-eth-...", "asset": { "kind": "Erc20", "contract": "0xA0b8...eB48", "amount": "1000000000" }, "fiatCurrency": "EUR", "bankId": "bank-77af...", "rail": "sepa"}Both on-ramps and payouts are listable and individually queryable, with live status and the underlying references for reconciliation, so your back office can track every movement to completion.
Governed like every other operation
The onchain legs of every ramp run through DFNS wallets, which means they run through the same controls as the rest of your operations. Sending stablecoin to Circle for redemption is a transaction like any other: it passes through the Policy Engine, with approval quorums, limits, and roles applied before anything is signed, and it lands in the same audit trail.
Your Circle Mint credentials are encrypted, never exposed, and used only to execute the operations you initiate. Underneath, keys are protected by DFNS’ infrastructure and never assembled in one place. Security is the floor the rest of this stands on.
The result is that minting and redemption stop being a separate, manual, off-platform process and become governed operations alongside everything else you run.
What this unlocks
- Fund wallets with fiat, mint USDC or EURC from an incoming wire straight into a DFNS wallet.
- Settle to a bank, redeem USDC or EURC back to fiat, paid out over wire, SEPA, or SEPA Instant.
- Pay out across currencies, redeem to a currency other than the stablecoin’s, through Circle’s exchange, when a destination needs local fiat.
- Close the loop on one platform, run the full fiat-to-stablecoin-to-fiat cycle where your wallets, policies, and audit trail already live.
- Reconcile in one place, every mint and redemption tracked end to end, with status and references for your back office.
Part of a deeper Circle integration
Circle Mint follows our support for Circle’s Cross-Chain Transfer Protocol (CCTP), which moves native USDC across chains in a single API call. Cross-chain movement covers the onchain dimension, while Circle Mint covers the fiat boundary. Together they let an institution bring dollars and euros onchain, move them across networks, and take them back to fiat, all on DFNS.
Get started
- Learn more about onchain core banking: dfns.co
- Explore the platform and documentation: docs.dfns.co
- Talk to our team about Circle Mint: sales@dfns.co
Frequently asked questions
What is Circle Mint support on DFNS? Circle Mint on DFNS is a native fiat on- and off-ramp for stablecoins, built into your wallets. You connect your own Circle Mint account once, then mint USDC or EURC from an incoming wire and redeem them back to fiat paid out to a bank account, without leaving the platform. Mint and redemption are 1:1 at the protocol level.
Which stablecoins and currencies does it support? It supports USDC and EURC, with USD and EUR handled natively. Redemption can also convert across currencies through Circle’s exchange when a destination needs local fiat other than the stablecoin’s own currency.
What payout rails are available for redemption? Off-ramp payouts settle over wire, SEPA, and SEPA Instant. You choose the rail per payout, and you can quote a redemption to see the fiat amount and fees before committing.
Is DFNS a custodian in the mint and redeem flow? No. DFNS is pure technology, not a custodian. You connect your own Circle Mint account, your credentials are encrypted and never exposed, and keys are protected by DFNS’ infrastructure and never assembled in one place. DFNS executes only the operations you initiate.
How are minting and redemption governed? The onchain legs of every ramp run through DFNS wallets, so they pass through the same Policy Engine as the rest of your operations: approval quorums, limits, and roles are applied before anything is signed, and every movement lands in the same audit trail with references for reconciliation.
How is Circle Mint different from DFNS’s CCTP support? CCTP moves native USDC across chains — it covers the onchain dimension. Circle Mint covers the fiat boundary, minting and redeeming USDC and EURC between bank accounts and wallets. Together they let an institution bring dollars and euros onchain, move them across networks, and take them back to fiat, all on DFNS.