Cross-chain · Polygon → Avalanche C-Chain
Swap WETH from Polygon to AVAX on Avalanche C-Chain
Swap WETH from Polygon to AVAX on Avalanche C-Chain. Polygon WETH leaves Polygon. Native AVAX is what can arrive on the C-Chain. This is not an unwrap. Polygon has no native ETH, and C-Chain AVAX is not WAVAX.
You sell 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619. You buy 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, meaning AVAX on chain id 43114. WAVAX is 0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7 and is not the credit. Polygonscan shows the token debit. Snowtrace shows native AVAX. Not the X-Chain. How cross-chain bridges work separates those names.
Unwrapping WETH never mints C-Chain AVAX
The receive can pay the C-Chain
C-Chain AVAX does not pay the Polygon fee
X-Chain is the wrong AVAX balance
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 WETH from Polygon to AVAX on Avalanche C-Chain?
You sell 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619. You buy 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, meaning AVAX on chain id 43114.
Is this the same as wrapping AVAX?
No. Wrapping on the C-Chain moves between AVAX and 0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7 and stays on chain id 43114. This route starts with Polygon WETH at 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 and can finish as native AVAX. Polygonscan and Snowtrace are both required. The X-Chain is not involved. ETH is not WETH.
Do I need AVAX before I start?
You need POL on Polygon to send. The AVAX credit is what this route can create. You do need a C-Chain address, chain id 43114, not an X-Chain address. Snowtrace shows a native credit, not a WAVAX token line. There is no approval of the gas label.
What if I wanted WAVAX?
Then this page is wrong. It pays native AVAX via 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. The wrapped contract is a different quote. Sign this one only if spendable gas on the C-Chain is the point. Mainnet WETH is a different chain entirely. This WETH debit lives on Polygon, not on Ethereum mainnet.
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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