Circle Mint — Fiat On-Ramp

Circle Mint is Circle’s institutional issuance service — it converts USD or EUR held in a bank account into USDC or EURC at exactly 1:1. For corporate treasuries that want to settle cross-border payments through DPX but hold fiat today, Circle Mint is the on-ramp.

Circle Mint + DPX = fiat-in, fiat-out cross-border settlement at ~2% all-in, settling in seconds.

The receiving counterparty never needs to touch stablecoins. DPX handles the on-chain leg; Circle Mint handles the fiat conversion at both ends if needed.

How it works

Your treasury (USD/EUR in bank)
    │
    │  SEPA / ACH / wire
    ▼
Circle Mint
    │  1:1 issuance
    │  USDC (USD) or EURC (EUR)
    ▼
Your wallet on Base mainnet
    │
    │  POST /payments/initiate (DPX Integration API)
    │  or MCP: settle()
    ▼
DPX Settlement Rail
    │  Stability Oracle gate
    │  Compliance / VoP
    │  ~30 second settlement
    ▼
Recipient wallet on Base
    │
    │  (Optional) Circle Mint redemption
    │  USDC/EURC → USD/EUR bank transfer
    ▼
Recipient's bank account

The fiat legs (deposit and redemption) are Circle Mint. The on-chain settlement leg is DPX. Both are independent and composable — you can use either without the other.

Circle Mint setup

Circle Mint requires a Circle business account. Apply at circle.com/en/circle-mint.

What you need:

Circle business account (KYB verification)
Bank account linked to Circle (SEPA for EUR, ACH/wire for USD)
Wallet address on Base mainnet to receive USDC or EURC

Minimum issuance: $50,000 USD equivalent
Settlement time (fiat → stablecoin): 1–2 business days for first issuance; same-day for established accounts
Redemption (stablecoin → fiat): Same-day for USDC; 1–2 business days for EURC via SEPA

EUR flows — EURC

For EUR-denominated settlement, use EURC (Circle’s MiCA-compliant Euro stablecoin):

# Deposit EUR via SEPA to Circle Mint → receive EURC on Base
# Then settle via DPX with settlementAsset: "EURC"

curl -X POST https://integration.untitledfinancial.com/payments/initiate \
  -H "Authorization: Bearer <key>" \
  -H "Content-Type: application/json" \
  -d '{
    "amount":           "500000.00",
    "currency":         "EUR",
    "settlementAsset":  "EURC",
    "creditor": {
      "lei":           "529900ODI3047E2LIV03",
      "walletAddress": "0x..."
    }
  }'

EURC settlement avoids FX exposure — the 0.40% FX fee does not apply. All-in rate for EUR-to-EUR: ~1.635% (at ESG score 75).

USD flows — USDC

For USD-denominated or cross-currency settlement:

curl -X POST https://integration.untitledfinancial.com/payments/initiate \
  -H "Authorization: Bearer <key>" \
  -H "Content-Type: application/json" \
  -d '{
    "amount":           "1000000.00",
    "currency":         "USD",
    "settlementAsset":  "USDC",
    "creditor": {
      "lei":           "5493001KJTIIGC8Y1R12",
      "walletAddress": "0x..."
    }
  }'

Kyriba integration

For Kyriba users, the full stablecoin payment flow works inside your existing TMS:

Fund your wallet — Circle Mint converts your bank balance to USDC/EURC on Base
Initiate payment in Kyriba — Kyriba sends an ISO 20022 pain.001 to DPX via the SPI connector
DPX settles — compliance check, oracle gate, on-chain settlement in ~30 seconds
pacs.002 returned to Kyriba — settlement confirmation with txHash for audit

No new interfaces for your treasury team. The stablecoin conversion and on-chain settlement happen invisibly within the existing Kyriba payment workflow.

Comparison: DPX + Circle Mint vs. Fipto

	DPX + Circle Mint	Fipto
Settlement time	~30 seconds on-chain	~10 minutes
Fiat on-ramp	Circle Mint (institutional)	Proprietary
Stablecoins	USDC + EURC (explicit)	“Fully audited” (unnamed)
ESG reporting	SFDR PAI per transaction	None
Compliance	On-chain VoP, FATF R16, AML6	Licensed PI (France/Luxembourg)
ISO 20022	Native pain.001/pacs.002	Via Kyriba wrapper
Pricing	Quoted on-chain before settlement	Opaque
MiCA (EURC)	✅	Not specified