Cross-chain · Avalanche C-Chain → Arbitrum One

Swap AVAX from Avalanche C-Chain to USDT on Arbitrum One

Swap AVAX from Avalanche C-Chain to USDT on Arbitrum One. Native AVAX leaves C-Chain, and Tether USDT is what can arrive on Arbitrum One.

Source gas is 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on Avalanche C-Chain, chain id 43114. That sentinel means AVAX, and Snowtrace is the explorer. Tether on Arbitrum One is 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9, chain id 42161. Arbiscan has to show that contract, not Circle's USDC. You are turning a gas coin into Tether's dollar claim. ETH, not USDT, pays the fees once you arrive.

Diagram for Swap AVAX from Avalanche C-Chain to USDT on Arbitrum One
AVAX leaves Avalanche C-Chain. USDT is what can arrive on Arbitrum One.

Tether's arrival is not Circle's USDC

Both can trade near a dollar and still fail a transfer that names the other issuer. This route delivers Tether at 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. Circle's native USDC on Arbitrum is 0xaf88d065e77c8cC2239327C5EDb3A432268e5831. If the invoice, the pool, or the custody rule says Circle, stop and use the USDC route. Arbiscan is how you prove which contract you hold after the hop.

The AVAX you spend is also the fee

Because 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE is native gas, there is no ERC-20 approval on the source. There is a fee in the same coin you are selling. Keep a remainder on chain id 43114. X-Chain AVAX will not appear in this wallet balance and cannot be forced through Snowtrace as a C-Chain send. If the network badge is wrong, fix that before the amount.

USDT on Arbitrum still needs an ETH float

Chain id 42161 does not accept Tether as gas, and it does not accept AVAX. ETH is the fee token. Nova will not show this USDT. Ethereum, chain id 1, uses Etherscan and about 12 second blocks, and its USDT contract is a different address with its own rules. Do not budget mainnet gas out of an Arbitrum Tether balance.

Compare this with a stable swap that never leaves C-Chain

If the dollars only need to exist on Avalanche, a local pool avoids the bridge, the ETH requirement, and the issuer question on Arbitrum. Cross the networks when the Tether you need is specifically the Arbitrum contract. How that handoff works is in how cross-chain bridges work. The minimum received is the number you accept or you walk away from.

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 AVAX from Avalanche C-Chain to USDT on Arbitrum One?

Source gas is 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on Avalanche C-Chain, chain id 43114. That sentinel means AVAX, and Snowtrace is the explorer.

Does AVAX to Arbitrum arrive as Circle USDC?

No. Native AVAX leaves C-Chain and Tether USDT at 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 is what can arrive on Arbitrum One. Circle's USDC is a different contract. Confirm it on Arbiscan, chain id 42161. If the receiver requires Circle, this page is the wrong route. Confirm the contract on the explorer before you sign.

Do I approve AVAX before this swap?

No. 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE is the native gas sentinel for AVAX on chain id 43114, not an ERC-20. Snowtrace shows the send as native AVAX. You still must leave enough AVAX to pay the fee. X-Chain balances are outside this quote. Keep the destination gas token or the arrival cannot move.

Can the USDT I receive pay fees on Arbitrum?

No. ETH pays gas on Arbitrum One. USDT cannot, and AVAX from C-Chain cannot either. Nova is a different network. Hold a little ETH before you transfer the Tether. The quote minimum is the floor, and the bridge wait is not something this page can schedule.

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