How the swap works
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Type the ARB amount and paste your Optimism payout address on Optimism mainnet.
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Press Exchange to open the live quote and the deposit address for this order.
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Broadcast ARB to that deposit. After the required confirmations, OP is sent to your wallet.
Check these before you send
- Arbitrum confirmations are usually fast β often within a minute.
- Send ARB on Arbitrum One only β not Ethereum, Optimism, or Base unless your order says otherwise.
- Use an Arbitrum-compatible wallet and address (0xβ¦). Leave enough ETH on Arbitrum for gas if needed.
- If OP has not appeared yet, wait a few minutes and refresh the wallet. When the order already shows a payout tx, contact support with your order ID.
Arbitrum β leading Ethereum rollup
ARB is the governance token of Arbitrum One β an optimistic rollup with EVM compatibility and wide DeFi adoption.
ARB on Arbitrum One
Use an Arbitrum One wallet for deposits. Other chains use different assets even with the same ticker.
Leave enough ETH on Arbitrum for gas on top of the swap amount when required.
Optimism β Ethereum L2 with low fees
OP is the governance token of Optimism β an Ethereum rollup with fast, low-cost transfers and deep Superchain liquidity.
OP not received?
Confirm your wallet is on Optimism mainnet and fully synced.
OP payout tips
- Payouts go to Optimism β verify your wallet RPC is set to Optimism, not Ethereum mainnet.
- Check Optimistic Etherscan with the payout tx hash from your order page.
- Allow a minute for your wallet to refresh after the explorer shows the transfer.
Read before you send
Wrong-network deposits and address mistakes are the usual failure modes β start with these notes.
Coin swap hubs
More no-KYC swap pairs and guides for each asset.
Frequently asked questions
Does ARB to OP require KYC or an account?
No. PeakSwap does not ask for a profile, ID documents, or a hosted balance for Arbitrum to Optimism.
How long until OP arrives?
Many orders finish in a few minutes. Arbitrum One deposit confirmations and Optimism mainnet payout time set the wait.
Do you hold ARB or OP for me?
No. You send ARB from a wallet you control and OP is paid to the address you provide β PeakSwap does not keep a user wallet.
What if I send ARB on the wrong chain?
Use Arbitrum One exactly as shown on the order. A wrong-network send may not be credited β read the swap safety notes first.