Tunnel in 3 steps
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Choose how much OP to send and paste the Ethereum address that should receive funds on Ethereum mainnet.
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Open the order to freeze the quote and reveal a one-time deposit destination.
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Broadcast OP to that destination. Once confirmations clear, ETH is pushed to your payout wallet.
Before you broadcast
- Optimism confirmations are usually fast — often within a minute.
- Send OP on Optimism mainnet only — not Ethereum, Base, or Arbitrum unless your order says otherwise.
- Use an Optimism-compatible wallet and address (0x…). Leave enough ETH on Optimism for gas if sending ERC-20 tokens.
- Still waiting on ETH? Give the wallet a few minutes to sync, then share your Exchange ID with support if the order already lists a payout hash.
Optimism — Ethereum L2 with low fees
OP is the governance token of Optimism — an Ethereum rollup with fast, low-cost transfers and deep Superchain liquidity.
OP on Optimism mainnet
Use an Optimism wallet for deposits. L1 Ethereum or other L2 sends may not be credited.
Leave enough ETH on Optimism for gas when moving OP or other tokens.
Ethereum — programmable money on-chain
ETH powers Ethereum mainnet — gas, staking, DeFi, and most smart-contract activity in crypto live here.
What if my ETH hasn't arrived?
Check the order page for a payout transaction hash first.
Confirm your wallet is on Ethereum mainnet and fully synced.
How fast is the ETH payout?
Most payouts land within minutes once your deposit confirms — Ethereum blocks are ~12 seconds apart.
Receiving ETH on the correct network
- Payouts go to Ethereum mainnet — not BSC, Base, Arbitrum, or other L2s unless your order explicitly lists them.
- Double-check the address you paste: one wrong character sends funds to an unreachable wallet.
- Self-custody wallets (MetaMask, Rabby, hardware devices) are recommended for long-term holding.
Float vs fixed rate on ETH payouts
The rate mode you pick at the top of the swap widget affects how your final ETH amount is calculated.
- Float rate follows the market until your deposit confirms — best when mempools are quiet.
- Fixed rate locks the quote for a short window — useful when ETH price is moving quickly.
Before you swap
Avoid wrong-network deposits and address format mistakes — read these guides first.
Coin swap hubs
More no-KYC swap pairs and guides for each asset.
Frequently asked questions
Do I need KYC to swap OP for ETH on TunnelSwap?
No. TunnelSwap is an anonymous no-KYC, privacy-first exchange. There is no account, no ID upload, and no standing balance for Optimism → Ethereum swaps.
How fast is a OP → ETH swap?
Most routes settle within minutes. Final timing follows Optimism mainnet deposit confirmations and Ethereum mainnet payout speed.
Does TunnelSwap hold my OP or ETH?
No. You fund the deposit from your wallet and ETH is sent straight to the address you paste — non-custodial, wallet to wallet.
What if I use the wrong network for OP?
Only send on the network shown for the order (Optimism mainnet). Wrong-chain deposits can be unrecoverable — review the safety guides before you broadcast.