Cross-chain · Avalanche C-Chain → Polygon
Swap AVAX from Avalanche C-Chain to USDT on Polygon
Swap AVAX from Avalanche C-Chain to USDT on Polygon. Native AVAX leaves the C-Chain, and Tether USDT arrives on Polygon chain 137.
Sell AVAX, the gas coin on chain 43114, written as 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Snowtrace shows the account. Keep a fee remainder. No approval applies. The C-Chain is not the X-Chain. Receive Tether at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F, 6 decimals, on Polygonscan. It is not Circle's native USDC at 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 and not USDC.e. POL, not USDT, pays the next fee. C-Chain Tether at 0x9702230a8ea53601f5cd2dc00fdbc13d4df4a8c7 is not the output, because you are selling AVAX.
Selling AVAX into Tether
Leave AVAX, ignore the X-Chain
POL, or the dollars stay put
Other dollars and other wrappers
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 Polygon?
Sell AVAX, the gas coin on chain 43114, written as 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Snowtrace shows the account.
Is this the USDT I already hold on Avalanche?
No. Avalanche Tether is 0x9702230a8ea53601f5cd2dc00fdbc13d4df4a8c7. This route sells native AVAX and delivers Polygon Tether at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F, which you check on Polygonscan. The source is the C-Chain, chain 43114, on Snowtrace, not the X-Chain. The two Tether contracts are not interchangeable. Confirm the Polygon mint address on Polygonscan.
Do I approve AVAX before this swap?
No. The placeholder 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE is the C-Chain gas coin, and you send it. Leave enough AVAX on chain 43114 for the fee. An approval request means a token is selected. This page does not pull USDT or USDC as the input. Recheck the asset line before you sign.
Can the USDT pay Polygon fees?
No. POL pays chain 137. USDT cannot. The AVAX you sold does not reappear as POL. Put POL on the Polygon account or the Tether balance is visible on Polygonscan and stuck. There is no promised time between the two explorers. POL has to be on chain 137 before the USDT 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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