USYC Vault is Live on Arc Testnet

The Yield Terminal
for Stablecoins

Earn tokenized U.S. Treasury yield on your USDC, swap inside Arc, bridge across chains, and provide liquidity — one venue, one balance. Built on Arc Testnet with Circle's native stablecoin stack.

Trade & Bridge →
~4.85%
USYC target APY
Live Pool TVL
24H Volume
Latest Arc Block
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V
Vortex Labs
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N
Nimbus Finance
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P
Prysma Protocol
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C
Cirrus Capital
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K
Kynder Network
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H
Halcyn DAO
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A
Astra Markets
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Z
Zenith DeFi
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V
Vortex Labs
·
N
Nimbus Finance
·
P
Prysma Protocol
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C
Cirrus Capital
·
K
Kynder Network
·
H
Halcyn DAO
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A
Astra Markets
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Z
Zenith DeFi
◆ Yield Terminal

Three Surfaces.
One Stablecoin Balance.

Earn tokenized U.S. Treasury yield on idle USDC, swap and bridge across chains, and provide liquidity — all from one venue on Arc.

USYC Yield Vault

Deposit USDC and mint USYC — Hashnote's tokenized U.S. Treasury money-market fund. Yield accrues per-block via the on-chain Teller oracle, redeem any market hour.

~4.85%
Indicative APY · MMF benchmark
Stablecoin Swap & Bridge

Trade USDC ⇄ EURC ⇄ ARC inside Arc, or bridge across chains via Circle CCTP V2. One unified Trade panel — no hopping between apps.

< 2 sec
Arc finality · CCTP cross-chain
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

Swap Inside Arc.
Bridge Across Chains.

One panel handles every stablecoin route — swap USDC ⇄ EURC ⇄ ARC inside Arc, or move USDC across chains via Circle CCTP V2. No bridging tab, no second app.

USDC base pair · EURC and ARC supported
CCTP V2 for cross-chain USDC settlement
Real-time price impact & route preview
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 Yield
in Four Steps

Connect, fund with testnet USDC, deposit into the USYC vault, then trade or LP whenever you want — your stablecoins keep earning between actions.

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 vault, trade, pool, and gas.

Step 03
Deposit into Vault

Open the USYC Vault, mint USYC against your USDC and start earning tokenized U.S. Treasury yield via Hashnote's on-chain Teller.

Step 04
Trade, Bridge or LP

Swap stablecoins inside Arc, bridge USDC across chains via CCTP, or provide liquidity to Arc-native pools — all from the same balance.

A Yield Terminal
for Stablecoins on Arc

ArcSwap is built on Arc — Circle's institutional L1 where USDC is the native gas token. Idle stablecoins earn tokenized U.S. Treasury yield through USYC, while the same balance routes seamlessly through swap, bridge and pool — one wallet, one venue, one stack.

◈ Roadmap

Where We're Going

A focused build path — extending the yield terminal with deeper Circle stack integrations and more stablecoin surfaces.

Q2 · 2026
USYC Vault Polish

Smoother Entitlements (allowlist) UX, position history, redemption queue UI, and vault-share analytics on the Arc Testnet deployment.

Q3 · 2026
Gateway · Cross-Chain USDC

Integrate Circle Gateway for unified cross-chain USDC balances — deposit on any chain, settle on Arc, withdraw anywhere.

Q4 · 2026
StableFX (PvP Settlement)

RFQ-driven USDC ⇄ EURC PvP settlement via the Arc FxEscrow contract — atomic two-sided FX with Permit2 signatures.

2027 · Beyond
Multi-Vault & Mainnet

Additional tokenized yield products beyond USYC, B2B Memo references for treasury flows, and Arc Mainnet launch when ready.