Cross-chain · Avalanche C-Chain → Polygon

Swap USDC from Avalanche C-Chain to POL on Polygon

Swap USDC from Avalanche C-Chain to POL on Polygon. Circle USDC leaves the C-Chain, and native POL arrives on Polygon chain 137.

You spend 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E on Avalanche C-Chain, chain 43114. Snowtrace shows Circle's USDC. AVAX pays the allowance and the send. This is not the X-Chain. You receive native POL. Quotes write it as 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. On chain 137 that string means POL, shown on Polygonscan as the account balance, not as a token. It is not WETH at 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 and not Tether. You are buying the fee coin.

Diagram for Swap USDC from Avalanche C-Chain to POL on Polygon — USDC leaves Avalanche C-Chain. POL is what can arrive on Polygon.

Buying the fee coin with a dollar

POL can pay later transactions on Polygon. The quote sets the amount. It is not a stipend for a week of fees. USDC could not pay those fees, which is often why this hop exists. If you only needed a dollar on Polygon, buying POL sells the stable exposure you had. Read the minimum before you treat the result as spare gas. A small fill can disappear into the next few transactions.

The placeholder is POL only on this chain

The same 0xEeee string on the C-Chain means AVAX. On Polygon it means POL. Searching it on Polygonscan does not open a token page. If a form shows it as the output while the wallet is on chain 137, you are buying the native coin. Confirm the network before you sign. People still say MATIC. The gas symbol now is POL, and it is the same native balance, not an extra token to approve.

Three assets this page skips

It skips Tether at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F. It skips native USDC at 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 and bridged USDC.e at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174. It skips WETH. It also skips an X-Chain balance, which cannot fund this route. Use this page when a Polygon account needs the gas coin and you are paying from Circle dollars on the C-Chain.

How the explorers differ

Snowtrace records an ERC-20 debit. Polygonscan records a native credit, so you may not see a token transfer on the destination. Trade on Polygon is the chain note. No bridge duration is stated. Keep AVAX on the C-Chain for the approval. If the minimum POL is too small, do not sign.

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 USDC from Avalanche C-Chain to POL on Polygon?

You spend 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E on Avalanche C-Chain, chain 43114. Snowtrace shows Circle's USDC.

Does 0xEeee on this route mean AVAX or POL?

On the destination it means POL, the gas coin of chain 137. On the C-Chain the same placeholder means AVAX, which pays the USDC fee. It is not a contract on Polygonscan. WETH, if that was the order, is 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619. Match the chain id before you read the address. The X-Chain is not either side.

Will I receive an ERC-20 called POL?

You receive native POL on the account balance. There is no token-contract credit to hunt. If a dapp asks for an ERC-20 address rather than the gas coin, this route has not given it that address. Check Polygonscan's native line after the C-Chain USDC debit confirms on Snowtrace.

What do I need beside USDC on Avalanche?

AVAX, to pay for the allowance and the send on chain 43114. Circle USDC at 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E cannot pay gas. The X-Chain will not show this contract. The POL you are buying is not on Avalanche, so it cannot cover that fee. Leave the AVAX in the wallet when you size the swap.

Live execution

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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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