Cross-chain · Ethereum → Polygon

Swap USDT from Ethereum to POL on Polygon

Swap USDT from Ethereum to POL on Polygon. A Polygon wallet short of gas spends Ethereum Tether and receives native POL.

Native POL uses 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. That placeholder is the gas coin on chain id 137, shown on Polygonscan as a native balance. The token you approve is Tether, 0xdAC17F958D2ee523a2206206994597C13D831ec7, on Etherscan. If your Tether is already the Polygon contract at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F, you do not need this bridge. You need ETH beside the mainnet USDT so chain id 1 can mine the send. Switch the wallet to chain id 137 and read the native line on Polygonscan, including wallets that still print the older MATIC label for this gas coin.

Diagram for Swap USDT from Ethereum to POL on Polygon
USDT leaves Ethereum. POL is what can arrive on Polygon.

Already on Polygon? Swap there

This route is the wrong tool when the USDT is already at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F. Trade that token for POL on chain 137. Bridging from Ethereum moves 0xdAC17F958D2ee523a2206206994597C13D831ec7, which is a mainnet balance. Check which explorer holds the Tether before you sign.

The placeholder means POL here

Do not import 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. On this path it means POL. On an Ethereum path it means ETH. After the route, switch to chain id 137 and read the native line on Polygonscan. A wallet that still says MATIC is often showing this same gas coin under the old label.

ETH for the Tether approval

Chain id 1 charges ETH and blocks about every 12 seconds. Tether cannot substitute. How to bridge assets between chains covers the source signature. The POL you receive can pay the next chain 137 transaction, where blocks are about 2 seconds.

Leave POL for the follow-up

If you spend the entire native balance on the next transfer, later token moves stall. Keep a remainder sized for an approval and a swap. This pair exists to fund that remainder from Ethereum Tether, not to replace a dollar balance you still need.

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 USDT from Ethereum to POL on Polygon?

Native POL uses 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. That placeholder is the gas coin on chain id 137, shown on Polygonscan as a native balance.

I hold USDT on Polygon already. Should I open this page?

No. This page starts from Ethereum Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Etherscan. Polygon USDT at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F can be swapped for POL on chain 137. Using this bridge would move a mainnet balance you may be leaving in place on purpose. Use a same-chain swap instead.

Is 0xEeee a POL contract on Polygonscan?

It is a placeholder for the native gas coin, not a contract to import. On chain id 137 that coin is POL. Polygonscan shows it as the native balance of the address. Importing the placeholder creates a useless token row. Switch the wallet network and read the gas line.

What else belongs in the Ethereum wallet?

Tether plus ETH. The USDT contract cannot pay gas on chain id 1, and blocks there are about 12 seconds. POL does not exist on Ethereum yet, so it cannot pay the fee either. Add a small ETH balance before you approve 0xdAC17F958D2ee523a2206206994597C13D831ec7.

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.

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