Arc is the new Layer-1 blockchain from Circle, the company behind USDC. It runs on stablecoin gas, settles in under a second, and has quietly become one of the most-watched chains ahead of its mainnet launch. Naturally, the first question everyone asks after learning about it is the practical one: how do you actually get funds onto Arc?
This guide walks you through bridging to Arc step by step. We cover the testnet process you can complete today, the tools involved, and what will change once mainnet goes live. If you are farming the Arc Network testnet, bridging is one of the core on-chain actions you will want in your transaction history.
New to the chain itself? Start with our explainer on what Arc chain is and come back here when you are ready to move funds.
Arc Bridging Basics: What Makes This Chain Different
Before touching a bridge, you need to understand one thing that makes Arc unlike almost every other chain: USDC is the gas token.
On Ethereum you pay fees in ETH. And on Solana you pay in SOL. While on Arc, every transaction fee is paid directly in USDC. There is no separate volatile gas token to acquire, and fees stay predictable in dollar terms. For anyone who has ever been stuck with funds on a chain but no gas to move them, this design removes an entire category of headaches.
The second thing to know is how assets actually move to Arc. Bridging runs on Circle’s Cross-Chain Transfer Protocol (CCTP). Instead of locking your USDC in a bridge contract and handing you a wrapped IOU, CCTP burns your USDC on the source chain and mints native USDC on Arc. The result is real USDC on the destination, not a wrapped derivative that depends on a bridge staying solvent. Given how many wrapped-asset bridges have been exploited over the years, native burn-and-mint is a meaningful security upgrade.
One important status note: as of late July 2026, Arc is still in public testnet. The testnet launched in October 2025 and has processed hundreds of millions of transactions, with mainnet expected in summer 2026. That means everything you bridge today is testnet USDC with no real-world value. The upside is that testnet activity costs you nothing, and early users are positioning for a potential airdrop.
What You Need Before Bridging to Arc
Gather these four things first, and the actual bridge takes five minutes.
1. An EVM wallet. Arc is fully EVM-compatible, so MetaMask, Rabby, or any standard Ethereum wallet works. No special wallet is required.
2. The Arc Testnet network added to your wallet. You can add it automatically through Chainlist or the Arc documentation, or through most bridge interfaces, which will prompt you to add the network on arrival. Doing it in advance saves a step.
3. Testnet USDC on a source chain. Circle runs an official faucet that dispenses free testnet USDC on supported networks such as Ethereum Sepolia. This is the asset you will bridge.
4. Gas on both sides. Here is the detail that trips people up. The source chain still uses its own native token for gas, so you need a small amount of Sepolia ETH (or the equivalent on your chosen source chain) to approve and send the bridge transaction. On the Arc side, gas is paid in USDC, so you also want a little Arc Testnet USDC in your wallet before your bridged funds arrive. The Circle faucet covers both, and public Sepolia faucets hand out test ETH freely.
With those in place, you are ready to bridge.
How to Bridge to Arc Testnet: Step by Step
There are two easy routes for regular users. Both take a few minutes.
Route 1: Thirdweb Bridge (Simplest)
Thirdweb runs a clean bridge interface with Arc Testnet support, and it is the fastest option for non-developers.
- Connect your wallet at the thirdweb bridge page for Arc Testnet.
- Select your source chain — for example, Ethereum Sepolia.
- Choose USDC as the token to bridge.
- Set Arc Testnet as the destination and enter the amount.
- Approve and confirm. Your wallet will ask you to approve the USDC spend first, then confirm the transfer. Both actions need source-chain gas.
- Wait for the mint. CCTP burns your USDC on the source chain and mints it on Arc. Transfers typically complete within minutes.
Route 2: Circle’s Official Bridge Tooling
Circle maintains its own USDC bridge infrastructure, and the Arc documentation includes a full bridging tutorial built on Bridge Kit, Circle’s developer SDK. For everyday users, the interface route above is easier. For developers, Bridge Kit reduces a CCTP transfer to a few lines of code, which is worth knowing if you plan to build on Arc or automate transfers.
Verifying Your Bridge
Once the transaction completes, open the Arc Testnet explorer and paste your wallet address. You should see the minted USDC balance and the incoming transaction. Your wallet will also display the balance once the Arc Testnet network is added. That explorer entry is your proof of activity — relevant if you are building a testnet history for airdrop eligibility.
Bridging to Arc and the Airdrop Angle
Let’s be direct about why many readers are here. Circle has confirmed it is exploring an ARC token, institutional interest in the network is substantial, and the testnet has been running since October 2025. No airdrop has been officially announced. Even so, the pattern across previous major chain launches is clear: early, genuine network participants are frequently rewarded, and bridging is among the most fundamental on-chain actions a wallet can record.
If you want to position yourself, the sensible approach is consistent, organic activity rather than one-off spam. Bridge funds in, make transactions, interact with testnet apps, and spread the activity over weeks. Our Arc Network testnet listing tracks the current tasks and requirements, and we update it as the ecosystem develops.
A word of caution as mainnet approaches: hype cycles attract scammers. Fake bridge sites and fake ARC token claims are already circulating on social media. Only use bridge links from official Arc or Circle channels, and treat any “claim your ARC airdrop” link with maximum suspicion until Circle itself announces something.
What Changes When Arc Mainnet Launches
Arc mainnet is expected in summer 2026, and the bridging picture will shift in a few predictable ways.
Real USDC replaces testnet USDC. The faucets go away, and you will bridge actual funds. The CCTP burn-and-mint mechanics stay the same, so the process you practice on testnet today translates directly.
More routes open up. Circle’s USDC Bridge already supports transfers across major chains, and Arc will slot into that infrastructure at launch. Expect third-party bridges, exchange withdrawals directly to Arc, and on-ramps to follow quickly, given the institutional partners lined up behind the network.
Gas stays in USDC. The stablecoin-gas model is core to Arc’s design. Whatever you bridge, a few dollars of USDC covers your transaction fees, and there is no secondary token to buy first.
We will update this guide once mainnet bridging goes live, so the steps above always reflect the current process.
Final Words
Bridging to Arc is genuinely one of the simpler cross-chain experiences in crypto, largely because Circle controls the full stack: the stablecoin, the transfer protocol, and the chain itself. CCTP’s native burn-and-mint removes wrapped-token risk, USDC gas removes the stranded-funds problem, and the whole flow takes minutes.
Right now, the smart move is to complete the testnet bridge, build a genuine activity history, and keep an eye on the mainnet timeline. Everything you learn today carries over the moment real funds start flowing. For the bigger picture on the chain and why institutions from BlackRock to Visa are involved, read our full breakdown of what Arc chain is — and check the testnet listing before you start clicking (linked in intro), so your activity counts where it matters.
If you enjoyed this blog, you may want to check our other recent guide on the new NFT gacha token called FWA.
As always, don’t forget to claim your bonus on Coinbase below. See you next time! minutes.
FAQ
Is there an Arc airdrop? Nothing is officially confirmed, but Circle has said it is exploring an ARC token, and the public testnet has been live since October 2025. Early testnet participants are positioning for a potential retroactive reward. Our Arc Network testnet listing tracks the current tasks and any eligibility updates.
Is Arc mainnet live yet? Not yet. As of July 2026, Arc remains in public testnet, with mainnet expected in summer 2026. All bridging today involves testnet USDC with no monetary value.
What is the gas token on Arc? USDC. Arc uses stablecoins for transaction fees instead of a volatile native gas token, which keeps costs predictable in dollar terms.
Do I need ETH to bridge to Arc? Only on the source side. Approving and sending the bridge transaction requires the source chain’s native token, such as Sepolia ETH on testnet. Once funds arrive on Arc, all fees are paid in USDC.
Is bridging to Arc testnet free? Effectively, yes. Testnet USDC comes from Circle’s faucet and Sepolia ETH comes from public faucets, so the entire process costs nothing beyond a few minutes of your time.
What is CCTP? The Cross-Chain Transfer Protocol is Circle’s system for moving USDC between chains. It burns USDC on the source chain and mints native USDC on the destination, avoiding wrapped tokens and the bridge-exploit risk that comes with them.
Which wallets work with Arc? Any standard EVM wallet, including MetaMask and Rabby. Arc is fully EVM-compatible, so no special wallet setup is needed beyond adding the Arc network.
Crypto class of '13, airdrop farmer since 2016. Avid trader and DeFi veteran. His market commentary has been featured by Bloomberg, The Wall Street Journal, The New York Times, Forbes, and CNN.
