USYC Vault is Live on Arc Testnet

One USDC.
One Balance.
Everywhere.

See your USDC across every chain in one balance, spend it instantly anywhere via Circle Gateway and CCTP V2, and let idle stablecoins earn tokenized U.S. Treasury yield. Built on Arc Testnet with Circle's native stablecoin stack.

Spend Anywhere
~4.85%
USYC target APY
—
Live Pool TVL
—
24H Volume
—
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◆ One Balance · Three Surfaces

Spend, Earn, Provide
From One Balance.

Spend USDC anywhere via Circle Gateway and CCTP V2, earn tokenized U.S. Treasury yield on idle balances, and provide liquidity — all from the same wallet.

◆
Unified Stablecoin Spend

Connect any wallet, see your USDC across every supported chain alongside Circle Gateway pre-deposits — all in one selector. Spend instantly anywhere via CCTP V2 settlement.

8 Chains
Unified balance · spend anywhere
◇
USYC Yield Vault

Idle USDC earns tokenized U.S. Treasury yield via Hashnote's USYC. Per-block accrual through the on-chain Teller oracle, redeem any market hour.

~4.85%
Indicative APY · MMF benchmark
◈
Liquidity Pools

Provide liquidity to Arc-native pairs and earn a share of every swap. Constant-product AMM with full position tracking and instant withdraw.

0.25%
LP fee per swap · auto-compounded
◆ Unified Trade Panel

One Balance.
Every Chain.

Pick a source — wallet on any chain or Circle Gateway pre-deposits — and spend USDC anywhere. CCTP V2 settles cross-chain in seconds. No bridging tab, no second app.

Unified Balance · wallet + Gateway in one selector
CCTP V2 for cross-chain USDC settlement
USDC ⇄ EURC ⇄ ARC native swap inside Arc
Non-custodial — your keys, your stablecoins
Swap
⚙
From Balance: 500 USDC
U
USDC ▾
≈ $0.00
⇅
To Balance: 0 ARC
A
ARC ▾
≈ $0.00
Rate1 USDC = — ARC
Fee (0.3%)—
Price Impact—
Min Received—
Powered by Arc Testnet · Non-custodial
$2.4B
Simulated volume on Arc Testnet
18M
Testnet transactions processed
99.97%
Network uptime since launch
◇ Getting Started

From Wallet to
Spend Anywhere

Connect, fund with testnet USDC, see your unified balance across chains, then spend instantly anywhere — and let idle stablecoins keep earning USYC yield in the background.

Step 01
🦊
Connect Wallet

Use MetaMask or any EVM-compatible wallet. Add Arc Testnet (chainId 5042002) and you're ready — USDC is the native gas token.

Step 02
💧
Get Testnet USDC

Claim free USDC from faucet.circle.com — Circle's official Arc Testnet faucet. The same USDC works for trade, vault, pool, and gas.

Step 03
◆
Spend Anywhere

Open Trade and pick a source — wallet on any chain or Circle Gateway pre-deposits. CCTP V2 settles your USDC across chains in seconds.

Step 04
◇
Earn While Idle

Park spare USDC in the USYC Vault to earn tokenized U.S. Treasury yield via Hashnote's on-chain Teller. Redeem any market hour.

One USDC.
One Balance.
Everywhere on Arc.

ArcSwap unifies stablecoins across chains. Connect any wallet, see your USDC on every supported chain alongside Circle Gateway pre-deposits, and spend instantly anywhere — while idle balances earn tokenized U.S. Treasury yield via USYC. One stack, every surface.

◈ Roadmap

Where We're Going

A focused build path — unifying stablecoin spend across chains, layering yield on idle balances, then hardening for ecosystem rollout.

Q2 · 2026
◆
Public Beta + Unified Spend

Launch ArcSwap public beta on Arc Testnet. Ship Unified Balance (wallet + Gateway as one selector), production CCTP V2 flows, and polished wallet UX with EIP-6963 detection.

Q3 · 2026
◇
Stablecoin Yield + Onboarding

Integrate the USYC vault with smoother Entitlements (allowlist) UX, redemption queue UI, position history. Add account abstraction for gasless USDC-paid transactions.

Q4 · 2026
◈
Reliability + Ecosystem

Transaction reliability and observability, additional chain support (high-stablecoin-volume networks), spend analytics with B2B memo references, and production hardening for mainnet readiness.

2027 · Beyond
◉
StableFX & Arc Mainnet

RFQ-driven USDC ⇄ EURC PvP settlement via the Arc FxEscrow contract, multi-vault expansion beyond USYC, and Arc Mainnet launch when ready.