Use Manta Bridge for treasury transfers by moving ETH or supported tokens between Ethereum Mainnet and Manta Pacific, then reconciling the destination credit. For the transfer itself, use the Manta Bridge to initiate a deposit or withdrawal in the required direction. To bridge Ethereum to Manta, reserve gas and confirm the resulting balance.
It moves ETH or supported token value between Ethereum Mainnet and Manta Pacific through bridge contracts and cross-domain messages. A deposit records value on Ethereum and credits the corresponding asset on Manta Pacific; a withdrawal reverses that accounting and releases value on Ethereum after finalization. It is a transfer between networks, not a trade at a quoted exchange rate.
For an ERC-20 deposit, the wallet first grants the bridge contract an allowance, then submits the deposit transaction. The token is held on Ethereum while its mapped counterpart becomes available on Manta Pacific. The OP Stack specification describes this paired-contract model; the token contracts on the two networks can have different addresses even when wallets show the same symbol.
That address distinction matters to a treasury. Before treating a balance as the asset your payout policy requires, check the Ethereum token contract and its Manta Pacific counterpart against your approved asset list. Manta Pacific uses ETH for transaction gas, so a wallet receiving only bridged tokens still needs ETH before it can send them onward.
Set the source network, asset, amount and destination wallet, then complete each transaction required by that direction. Ethereum Mainnet has chain ID 1; Manta Pacific has chain ID 169. Record both the source transaction and the destination result, since a successful source transaction alone does not establish that funds are available for payout.
Consider an illustrative 1 ETH move from Ethereum into a Manta Pacific payout wallet. The mainnet deposit consumes ETH for gas in addition to the 1 ETH being moved; after the destination credit, part of that 1 ETH can fund Manta Pacific transactions. If the instruction instead sends the entire balance back to Ethereum, leave enough ETH on Manta Pacific to initiate the withdrawal and enough ETH on Ethereum to complete any required finalization.
Cost depends chiefly on gas used and the effective gas price on each network. An ERC-20 deposit can require a separate approval transaction, whereas an ETH deposit generally does not. On a return trip, Ethereum proof and finalization transactions may add further mainnet gas costs.
Use gas units to assess a transfer rather than assuming a fixed currency fee. As an illustration, a transaction using 100,000 gas at 10 gwei costs 0.001 ETH; doubling the gas price doubles that cost. Contract execution determines gas used, while network demand determines the effective gas price. Manta Pacific also charges transaction gas, including the costs associated with its data availability design using Celestia.
Deposits commonly become usable after the Ethereum transaction is confirmed and its cross-domain message is processed, often in minutes. A bridge from Manta Pacific to Ethereum takes longer because an L2 withdrawal must reach the state at which Ethereum can accept its proof and release funds. Manta Network described a three-day optimistic challenge period in its fast-finality announcement, alongside a design intended to shorten eligible exits; check the actual withdrawal state before promising a settlement time.
A transfer is complete for treasury purposes when the intended wallet holds the expected asset on the destination network and can use it. For a withdrawal, an initiation transaction on Manta Pacific is only the first stage: the withdrawal may still await a state root, proof, finalization period or Ethereum completion transaction. Keep it in a pending ledger state until the Ethereum release is confirmed.