Cross-chain · Polygon → Avalanche C-Chain
Swap USDC from Polygon to AVAX on Avalanche C-Chain
Swap USDC from Polygon to AVAX on Avalanche C-Chain. Circle USDC leaves Polygon. Native AVAX is what can arrive on the C-Chain. That AVAX can pay gas, and it is not WAVAX and not an X-Chain balance.
Spend 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359. Receive 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, which on chain id 43114 means AVAX, not a token you approve. Polygonscan shows USDC. Snowtrace shows AVAX. How cross-chain bridges work is why the gas label is not one coin across chains.

WAVAX is the other output
Not the X-Chain
Native USDC plus POL, not USDC.e
Circle's peg stops at AVAX
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 Polygon to AVAX on Avalanche C-Chain?
Spend 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359. Receive 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, which on chain id 43114 means AVAX, not a token you approve.
Is the destination WAVAX?
No. WAVAX is 0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7. This route pays native AVAX, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on chain id 43114. Snowtrace should show a native credit, not a token transfer. You sold Circle USDC at 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359, not USDC.e. The X-Chain will not list it. C-Chain Snowtrace is the only place that credit belongs.
Do I approve 0xEeee on Avalanche?
No. That string is the native gas label for AVAX on the C-Chain. There is no contract to approve. If a wallet asks for an allowance, you left this route. Polygonscan shows the USDC debit. Snowtrace shows the AVAX credit. Keep POL on Polygon for the send.
Can I start from USDC.e?
Not on this page. USDC.e is 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174. The quote names native Circle USDC. You also need POL on chain id 137. An X-Chain receive address is the wrong network. C-Chain only, chain id 43114. Do not paste an X-Chain address and expect this AVAX credit to show up.
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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