Mainnet → Optimism

Swap ATOM to ETH

Exchange ATOM from Cosmos Hub into ETH on OP Mainnet. The provider waits for the ATOM deposit before arranging the ETH payout on the destination network. Track those as separate transactions rather than using a sending-chain confirmation as proof of receipt.

Cosmos (Mainnet) to Ethereum (Optimism)

You send: Cosmos (Mainnet)ATOM · Mainnet
You receive: Ethereum (Optimism)ETH · Optimism

Enter your amount to check live availability for ATOM on Mainnet → ETH on Optimism. A provider quote is required before you can create a swap.

Address and network checks

Use the order’s Cosmos Hub deposit address for ATOM, and your own OP Mainnet receiving address for ETH. Keep the refund address on Cosmos Hub; the payout address is not automatically a valid refund destination.

Sending ATOM

Choose Cosmos Hub using the Mainnet option shown in this directory. Follow the selected provider’s exact deposit instructions before sending. Use the Cosmos Hub ATOM network specified by the order. An ATOM representation reached through IBC on another chain is not automatically a compatible deposit. Copy any memo or extra ID included with the provider’s deposit address.

For a standard self-custody transfer on Cosmos Hub, allow for network fees in ATOM in addition to the amount you send. Wallet sponsorship and exchange withdrawal charges can differ; check the sending wallet’s final fee.

Receiving ETH

Select OP Mainnet, often labeled Optimism. Its ETH balance and token balances are separate from those on Ethereum mainnet. Native ETH and wrapped Ether (WETH) are different assets. Use the ETH balance on the selected network; do not substitute WETH for an ETH deposit. This listed ETH/Optimism option has no separate memo field. If your destination requires additional instructions that this form cannot supply, choose another compatible destination before creating an order.

Refund address for this pair

Enter a refund address that accepts ATOM on Mainnet. This listed asset has an extra-ID field; include the refund memo or extra ID, or explicitly enter 0 when your wallet requires none.

Swap the other direction: ETH to ATOM

CROSS-CHAIN EXCHANGE

Make your move

Wallet to wallet

Provider privacy rating

ⓘ

You sendMainnet

Min. 3.075117 · Max. 960,973.94493831Cosmos (Mainnet)

You receiveOptimism

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Connecting to providers…Ethereum (Optimism)

Recipient address ETH

Timing depends on the pair and provider ↗

INDEPENDENT EXCHANGE PROVIDERSConnecting…

SENDING ASSET

Cosmos Hub on Cosmos Hub

ATOM is the staking asset of Cosmos Hub. The broader Cosmos ecosystem contains many independent chains and assets connected through interchain protocols.

Read the ATOM network guide →

RECEIVING ASSET

Ethereum on OP Mainnet

Ether is used for transaction fees and staking on Ethereum. ETH is also available on several separate networks in this directory, so the network is part of the asset you select.

Read the ETH network guide →

About this ATOM / ETH route

Can I swap ATOM on Mainnet to ETH on Optimism?

Both assets are listed in our coin directory. Enter your amount to request a live quote for this exact direction and network combination. A swap can proceed only when a provider returns a usable quote; liquidity, limits and rate types can change.

Which network fee applies when sending ATOM?

What should I check before receiving ETH on OP Mainnet?

Native ETH and wrapped Ether (WETH) are different assets. Use the ETH balance on the selected network; do not substitute WETH for an ETH deposit. This listed ETH/Optimism option has no separate memo field. If your destination requires additional instructions that this form cannot supply, choose another compatible destination before creating an order.

How much ETH will I get for ATOM?

Enter your ATOM amount to see an approximate receive amount. Click Find the best route to compare providers. Floating rates can change before conversion; fixed quotes follow the selected provider’s terms.

Does a confirmed ATOM deposit mean my ETH has arrived?

No. Deposit confirmation on Cosmos Hub, provider processing and payout on OP Mainnet are separate steps. Use Track swap to see the order status, then check the ETH balance on the receiving network. A live quote or historical route check does not guarantee completion time.