Cross-chain · BNB Chain → Polygon

Swap BNB from BNB Chain to USDC on Polygon

Swap BNB from BNB Chain to USDC on Polygon. You send native BNB on BNB Chain and you receive Circle's native USDC on Polygon.

The source marker 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE means BNB, the gas coin on chain id 56. No ERC-20 approval. BscScan shows a native send. Blocks are about 3 seconds. Leave extra BNB for the fee. Native USDC on Polygon is 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359. Match it on Polygonscan, chain id 137. It is not USDC.e. You will need POL to move it.

Diagram for Swap BNB from BNB Chain to USDC on Polygon
BNB leaves BNB Chain. USDC is what can arrive on Polygon.

BNB is spent as the asset and as the fee

There is no token approval, but there is a fee. If you sell every BNB, the transaction cannot be mined. The page will not sell the ETH peg at 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 and will not sell a stablecoin peg. If those are the balances you meant, this is the wrong route.

Circle's native contract, then a POL problem

Polygonscan should show 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 and not a bridged USDC.e address. The USDC cannot pay gas on chain id 137. POL has to be there already. BNB does not arrive with the dollars. A wallet that only holds this USDC is stuck until POL is added.

The peg ETH token will not be pulled

People see ETH in the token list and assume this BNB page uses it. It does not. USDT and WETH payouts are different pages. POL as a payout is a different page. Polygon is the destination. If you only needed USDC on BNB Chain, do not bridge. No amount is locked.

Split the BNB before you sign

Keep a fee remainder, then read the minimum USDC for the rest. A 3 second block on chain id 56 is not a promise that Polygonscan has the token. Sign the native send only while the wallet says BNB Chain. Reject destinations you did not generate yourself. Native USDC still cannot pay the Polygon fee by itself.

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 BNB from BNB Chain to USDC on Polygon?

The source marker 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE means BNB, the gas coin on chain id 56. No ERC-20 approval.

Do I approve BNB the way I approve the USDC peg?

No. Native BNB uses 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, which is not an ERC-20. BscScan shows a native transfer on chain id 56. You only leave extra BNB for gas. The USDC you receive is 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 on Polygonscan. That token needs POL before it can move.

Which USDC should Polygonscan show?

Native Circle USDC, 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359, on chain id 137. Bridged USDC.e is a different contract, and this route is the wrong tool if a pool demands that copy. Do not stop at the letters USDC. You still need POL in the wallet. BNB paid only the source side.

Can the route finish if I spend my last BNB?

No. The fee comes from the same native balance you are selling. Leave enough BNB for gas on chain id 56. A failed send does not create USDC on Polygon. This page also does not promise a price or a completion time once a valid send does go through.

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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