Cross-chain · Avalanche C-Chain → Polygon
Swap AVAX from Avalanche C-Chain to USDC on Polygon
Swap AVAX from Avalanche C-Chain to USDC on Polygon. Native AVAX leaves the C-Chain, and Circle's native USDC arrives on Polygon.
You sell the gas coin on chain 43114, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Snowtrace shows the account. Leave a remainder for the fee. There is no approval on native AVAX. The C-Chain is not the X-Chain. You receive 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359, Circle's native USDC, 6 decimals, on Polygonscan. It is not USDC.e at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174. It is not Tether. POL is required to move it. You do not arrive holding AVAX.
Native USDC from a gas-coin sale
Do not empty the C-Chain
POL is the leftover chore
Tether would have been another address
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 USDC on Polygon?
You sell the gas coin on chain 43114, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Snowtrace shows the account.
Is this USDC the bridged USDC.e?
No. USDC.e is 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174. This route delivers 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 on Polygonscan. The source is native AVAX on the C-Chain, chain 43114, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, not an ERC-20. If the app names the bridged contract, this credit will not match it. Read the deposit address against Polygonscan before you sign.
Do I approve AVAX?
No. Native AVAX is sent, not approved. Leave enough on chain 43114 for the fee. The X-Chain does not count. If the wallet asks for a token allowance, you selected USDT or USDC by mistake. This page sells the gas coin only. Snowtrace shows that balance on the account.
What has to sit beside the USDC?
POL, the gas coin on chain 137. USDC cannot pay fees, and the AVAX you sold does not become POL. Fund POL or Polygonscan shows a Circle balance the wallet will not send. There is no promised time for that credit to appear. POL still has to be added before it can move.
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.
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