Cross-chain · Arbitrum One → Base

Swap ARB from Arbitrum One to USDC on Base

Swap ARB from Arbitrum One to USDC on Base. ARB leaves Arbitrum One and Circle USDC arrives here on Base.

Sell 0x912CE59144191C1204E64559FE8253a0e49E6548, the governance token. Arbiscan, chain id 42161, not Nova. ARB is not gas. Hold ETH. Receive Circle USDC at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base, six decimals. Basescan confirms it is not USDbC and not ARB. Base is chain id 8453, an L2. Blocks about every 2 seconds. That is not a schedule for the sale.

Diagram for Swap ARB from Arbitrum One to USDC on Base — ARB leaves Arbitrum One. USDC is what can arrive on Base.

Voting weight leaves, native USDC can arrive

Spent ARB does not vote and does not reappear on Base. The dollar is Circle's native contract on chain id 8453. Bridged USDbC is a different address that some apps still hard-code. If you are funding one of those apps, this route is the wrong dollar even though the wallet will say USDC. Match the app to Basescan first.

A float priced in six-decimal dollars

ARB has eighteen decimals and no peg. USDC has six and a dollar target. The minimum is the only bound, and it expires when the quote does. Do not compare raw integers across those scales. How cross-chain bridges work will not freeze the ARB price while you read the governance forum.

ETH on the L2 you leave, ETH on the L2 you enter

Approve 0x912CE59144191C1204E64559FE8253a0e49E6548 with Arbitrum ETH. Move the USDC later with Base ETH. Neither gas balance is the output. The sentinel is not what you receive. A wallet with only ARB cannot start, and a Base wallet with only USDC cannot continue.

Wrong if ARB itself is the delivery

This page is a sale. It is wrong for native ETH, wrong for the WETH predeploy, wrong for USDbC, and wrong on Nova. It is wrong if you wanted Circle USDC to remain the Arbitrum contract 0xaf88d065e77c8cC2239327C5EDb3A432268e5831. That token is not the receive. Before you sign, compare 0x912CE59144191C1204E64559FE8253a0e49E6548 with 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on their explorers and stop if either address on the quote differs. Keep the source fee token in the wallet after you choose the trade size. Sign only on the source chain id named in this article, with the wallet network checked.

Legal

Risk disclosure

XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.

Frequently asked questions

What is the best way to swap ARB from Arbitrum One to USDC on Base?

Sell 0x912CE59144191C1204E64559FE8253a0e49E6548, the governance token. Arbiscan, chain id 42161, not Nova. XAUConnect compares live routes and lets your own wallet sign.

Will I receive ARB on Base?

No. You sell 0x912CE59144191C1204E64559FE8253a0e49E6548 on Arbitrum One. The credit can be Circle USDC at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. Check Basescan. It is not USDbC. Voting power on the sold amount ends. Keep the ARB you still need before you sign. Confirm that address on the explorer before you sign, and refresh the quote if it has expired.

Is this USDC native or bridged?

Native Circle USDC, six decimals, at the address above, on chain id 8453. USDbC is the older bridged token and is not the output. If your app has not migrated, do not use this route for that app. Base is an L2. About 2 seconds is a block interval, not proof the app will recognize the token.

What pays gas for the ARB approval?

Native ETH on Arbitrum One, sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, chain id 42161. ARB cannot pay it. Base ETH cannot pay it. Nova is the wrong chain. You will also want ETH on Base later, because USDC does not pay fees on chain id 8453. Confirm the address on the explorer before you sign.

Live execution

Trade on XAUConnect

Open the swap page with this cross-chain route pre-selected, then connect your wallet on the source chain to quote and execute. You keep the keys.

Swap cross-chain Explore markets

Continue exploring

Related markets, guides & networks

Next pages on this subject. Read them before you trade.

Networks

Tokens

Guides

Articles

Build programmatically

Swap via API for bots and AI agents: quotes, builds, and cross-chain routes.

Developer quickstart