Quick answer: To bridge USDC to Arc, open the Across app, connect your wallet, pick the chain your USDC is on, set Arc as the destination, and confirm the transaction (plus a one-time approval if your wallet asks). USDC lands in your wallet on Arc, and because USDC is Arc's gas token, you can use it straight away.
Arc is Circle's Layer 1 blockchain, live on public mainnet since September 16, 2026. This guide covers what you need, the steps, which chains you can bridge from, and how gas works once you arrive.
What You Need
A wallet that supports custom EVM networks, such as MetaMask, Rabby, Coinbase Wallet or Rainbow.
USDC on a supported chain (see the list below). On a few chains you start with a different USDC version, listed below.
A little gas on the chain you're bridging from, e.g. ETH on Ethereum, Base or Arbitrum.
Arc network added to your wallet (optional, but it makes your balance easy to see):
Network name: Arc
RPC URL:
https://rpc.mainnet.arc.ioChain ID: 5042
Currency symbol: USDC
Block explorer:
https://explorer.arc.ioSome wallets let you add Arc in one click from Arc’s docs (source: https://docs.arc.io/arc/references/connect-to-arc).
How to Bridge USDC to Arc: Step by Step
Open Across. Go to across.to.
Connect your wallet. Choose the wallet that holds your USDC.
Pick your origin chain. Select the chain your USDC is on, for example Ethereum, Base or Arbitrum.
Set Arc as the destination. Choose Arc and USDC as the token you want to receive.
Enter the amount and review the quote. Across shows what you'll receive and the fee before you sign.
Confirm. Approve USDC if your wallet asks, then sign the deposit. You only pay gas on the origin chain, none on Arc.
Check your balance on Arc. Your USDC arrives in the same wallet address on Arc, usually in about two seconds.
Want to start from a token that isn't USDC? Across can swap on the origin chain and deliver USDC on Arc in the same transaction.
Which Chains Can You Bridge USDC to Arc From?
You can bridge USDC to Arc from these 15 chains on Across:
Ethereum, Base, Arbitrum, Optimism, Polygon, Avalanche, Linea, Unichain, World Chain, Ink, Monad, HyperEVM
BNB Chain (USDC on BNB Chain)
Tempo (from USDC.e or pathUSD)
Robinhood Chain (from USDG)
Whatever you start with, what arrives on Arc is native USDC. Routes also run the other way: USDC on Arc can go back out to the same chains.
Gas on Arc: You Arrive Ready to Transact
On most chains, you land holding the token you bridged and none of the token you need to pay fees. Arc is different. USDC is Arc's native gas token, so fees are paid in dollars and you don't need to buy a separate gas token.
Two things worth knowing:
Your wallet may show the balance as "ETH". Wallets that don't support custom gas tokens still work, but may label the balance "ETH". The underlying token is USDC (source: https://docs.arc.io/arc/references/connect-to-arc).
One balance, two views. USDC on Arc has a native interface (18 decimals, used for gas) and an ERC-20 interface at 0x3600000000000000000000000000000000000000 (6 decimals). They share one balance, so don't count it twice (source: https://docs.arc.io/arc/concepts/stablecoin-native-model).
Why Bridge to Arc With Across
Across is crosschain infrastructure for onchain finance. It is intent-based: a relayer typically delivers your USDC on Arc from its own funds, and the protocol settles afterwards through a process secured by UMA’s Optimistic Oracle. Across has supported Arc since mainnet day and has moved approximately $50M to or from Arc since launch.
For Developers and Integrators
If you're building on Arc or moving users' funds there, Arc (chain ID 5042) is live on the Across Swap API. Request a quote, get back a transaction to execute, and Across handles the route. Production use needs an API key and integrator ID. Find these in our docs.
FAQ
How do I bridge USDC to Arc?
Open Across, connect your wallet, choose the chain your USDC is on, set Arc as the destination, and confirm. USDC arrives in your wallet on Arc.
Which chains can I bridge to Arc from?
On Across: Ethereum, Base, Arbitrum, Optimism, Polygon, Avalanche, Linea, Unichain, World Chain, Ink, Monad, HyperEVM, BNB Chain, Tempo and Robinhood Chain.
Is there an Arc chain bridge for USDC?
Yes. Across is an Arc mainnet bridge for USDC, connecting Arc with 15 chains including Ethereum, Base and Arbitrum, in both directions.
Do I need a gas token on Arc?
No separate one. USDC is Arc's native gas token, so the USDC you bridge also pays your transaction fees on Arc.
What is Arc's chain ID?
Arc mainnet is chain ID 5042. Arc testnet is a separate network, chain ID 5042002.
Can I bridge USDC back from Arc?
Yes. Across routes run in both directions, so you can send USDC from Arc back to Ethereum, Base, Arbitrum and the other supported chains.
Bridge USDC to Arc Now
Bridge to Arc on Across → across.to/arc-bridge
Building on Arc? Start with the Swap API docs: docs.across.to
