Card event is linked to customer, currency, merchant and an idempotent payment reference.
Circle App Kit execution core
Kestrel Money Movement
Kestrel turns Send, Bridge, Swap and Unified Balance into one controlled flow with transparent fees and Arc settlement.
Production adapterBrowser wallet · App Kit · Arc Testnet
01
Execution intent
Choose the movement
Wallet not connectedEIP-6963 · user-controlled
03
Controlled lifecycle
Execution timeline
Wallet connectedUser-controlled signer remains in the browser.
Preflight estimateValidate balance, route capability, fees and recipient.
Policy & complianceAttach Kestrel policy decision before value moves.
Wallet signatureExplicit confirmation is required for execution.
Recovery pathResumable mint failures retain attestation context.
Settlement proofRecord hashes, explorer URLs and trace state.
04
Transaction proof
Verifiable outcome
No settlement proof yetThe completed App Kit result, policy decision, hashes, explorer links and trace ID will appear here.
New Arc ecosystem direction
Card settlement control plane
Kestrel now models the operational path highlighted by the Arc × Wirex announcement: card activity maps to USDC or EURC settlement on Arc, with pending state, compliance, reconciliation and proof treated as one lifecycle.
Provider-ready boundaryPartner onboarding required · no public Wirex API is claimed
Eligible activity is grouped by asset, region and settlement window without exposing chain mechanics.
Net USDC or EURC obligations move through the controlled Arc settlement path.
Gateway events, transaction proof and provider records close the operational ledger.
Settlement assetsUSDC · EURC
Ledger statesauthorized · pending · settled · exception
Evidenceprovider reference · transfer ID · tx hash · memo