One condition decides the route: the connected wallet must hold ETH on Ethereum Mainnet. The manta bridge is Manta Pacific’s live deposit and withdrawal interface, currently showing Ethereum Mainnet as the source and Manta Pacific Mainnet as the destination for ETH. It is therefore the right tool for funding the network with ETH, not a promise that every asset or chain can be sent through the same screen.
Why the bridge shows ETH instead of USDC
The page is an ETH route first. ETH pays for transactions on both sides, so depositing it gives the wallet a balance that can pay for swaps and app interactions after arrival. A bridge moves assets and messages between otherwise separate blockchain environments; Ethereum’s own guide notes that chains “cannot natively communicate, and tokens cannot move freely between blockchains.” Ethereum.org’s bridge overview
That distinction matters when a wallet contains USDC, USDT, or another token. The presence of a token on Ethereum does not mean this route supports it. A different provider may offer a swap-and-bridge route, but that is a different transaction path with its own token, liquidity, fee, and contract checks.
What to do when ETH is the only asset available
- Keep enough ETH in the Ethereum wallet for the deposit amount and Ethereum gas.
- Connect the intended wallet and confirm that the source reads Ethereum Mainnet and the destination reads Manta Pacific Mainnet.
- Enter a small first amount, review the wallet’s transaction details, then wait for the destination balance to update before using it.
The interface itself says, “ETH gas fees are currently high, please double check your gas fees prior to your transactions.” — Manta Pacific Bridge. That is a useful prompt to check the total cost before approving, rather than after submitting.
ERC-20 approval is not required for native ETH
Native ETH is sent with the transaction value; it does not use the usual ERC-20 allowance flow. An ERC-20 approval is permission for a specified contract to spend a token up to a stated amount. If a wallet unexpectedly asks for token approval while the selected asset is ETH, stop and inspect the asset and contract rather than signing automatically.
| What appears in the wallet | What it usually means |
|---|---|
| ETH on Ethereum Mainnet | Ready for the displayed deposit route, subject to gas. |
| USDC or another ERC-20 | Not necessarily supported by this screen; use a route that explicitly names that asset. |
| Wrong network selected | Switch before sending; a chain ID identifies the network included in Ethereum transaction signing. |
When the deposit is pending or missing
First check the Ethereum transaction hash in a block explorer and confirm it succeeded. Then confirm that the wallet is viewing Manta Pacific Mainnet, not Ethereum Mainnet. If the source transaction failed, ETH was not deposited; if it succeeded but the destination balance is absent, retain the hash and use the bridge’s support path rather than retrying the same transfer.
FAQ
Can USDC be sent through this route?
Only if the interface explicitly lists USDC. The displayed route should not be treated as generic token support.
Why is ETH needed after the transfer?
It is used to pay transaction fees on Manta Pacific.
Should a first deposit be small?
Yes. A small test confirms the wallet, network, and route before a larger transfer.