USDC/EURC 0.9047 +0.12% Arc Testnet LIVE Settlement < 1 second Gas token USDC Avg fee $0.0002 Built on Circle App Kit Arc valuation $3B Backed by a16z · BlackRock · Apollo USDC/EURC 0.9047 +0.12% Arc Testnet LIVE Settlement < 1 second Gas token USDC Avg fee $0.0002 Built on Circle App Kit Arc valuation $3B Backed by a16z · BlackRock · Apollo
Live on Arc Testnet  ·  Powered by Circle

Swap stablecoins
at the speed of Arc

Non-custodial stablecoin FX exchange. USDC ↔ EURC with sub-second settlement, predictable fees, and zero ETH required.

< 1s
Settlement time
$0.0002
Typical fee
USDC
Gas token
$3B
Arc valuation
Infrastructure backed by · Andreessen Horowitz · BlackRock · Apollo Global · ICE · $222M raised at $3B valuation
Built for stablecoins.
Not retrofitted.

Arc was designed from the ground up for programmable money. ArcFX unlocks what that makes possible.

Sub-second finality

Transactions are deterministically final in under 1 second. No confirmations, no uncertainty, no failed swaps.

💵

Stable gas fees

Gas paid in USDC — not ETH. Know exactly what a transaction costs before you sign. No gas price spikes.

🌍

Native onchain FX

Arc's built-in FX engine converts between stablecoins natively — transparent pricing, no hidden spread.

🔒

Non-custodial

Your keys, your funds. ArcFX never holds your assets. Sign once in your wallet. Arc settles instantly.

🏦

Circle infrastructure

Powered by Circle's App Kit and CCTP — the same infrastructure handling trillions in USDC transfers globally.

🔗

Cross-chain ready

Bridge USDC from Ethereum, Solana, Base, and 20+ chains. Unified balance means liquidity wherever you are.

Three steps to swap

No accounts. No KYC. Just your wallet and your stablecoins.

01 — CONNECT

Connect your wallet

Connect MetaMask or any EVM wallet. ArcFX automatically switches to Arc Testnet — no manual setup.

02 — ENTER

Enter an amount

Type how much USDC or EURC you want to swap. A live rate estimate appears instantly before you commit.

03 — CONFIRM

Approve in wallet

Sign the transaction in MetaMask. Arc settles in under a second with a verifiable onchain record.

04 — DONE

Funds in your wallet

See your updated balance immediately. View every swap on ArcScan with full transaction transparency.

Try a real swap
right now

The widget executes real transactions on Arc Testnet with actual testnet USDC and EURC. Connect your wallet and swap — everything settles onchain.

Real onchain transactions on Arc Testnet
Live rate fetched before every swap
Verified instantly on ArcScan
USDC gas — no ETH wallet top-up needed
Free testnet tokens at faucet.circle.com

Swap stablecoins on Arc

Connect your MetaMask wallet to swap USDC ↔ EURC on Arc Testnet with sub-second settlement.

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ArcFX mainnet

Mainnet is coming. Join the waitlist for early access to institutional-grade stablecoin FX with zero ETH required.

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