Tunnel in 3 steps
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Choose how much OP to send and paste the Bitcoin address that should receive funds on Bitcoin 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, BTC 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 BTC? 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.
Bitcoin — the original digital asset
Since 2009, Bitcoin has been the benchmark cryptocurrency — deep liquidity, wide recognition, and the default on-ramp for cross-chain swaps.
When is my BTC spendable?
After your payout transaction receives the confirmations shown on the order page — typically one or more blocks depending on route.
Checking your BTC payout
- Open the order page and copy the payout transaction hash into a Bitcoin block explorer.
- Confirm the destination address matches your wallet exactly — including case and format.
- Most wallets show incoming BTC after one confirmation; some exchanges wait for more.
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 BTC 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 → Bitcoin swaps.
How fast is a OP → BTC swap?
Most routes settle within minutes. Final timing follows Optimism mainnet deposit confirmations and Bitcoin mainnet payout speed.
Does TunnelSwap hold my OP or BTC?
No. You fund the deposit from your wallet and BTC 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.