Tunnel in 3 steps
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Choose how much OP to send and paste the Cardano address that should receive funds on Cardano 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, ADA 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 ADA? 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.
Cardano — research-driven layer-1
ADA is the native token of Cardano — a proof-of-stake network focused on security and formal verification.
ADA payout delays
Resync your Cardano wallet if the order shows a sent transaction but balance is unchanged.
When will ADA arrive?
Cardano block times are around 20 seconds — payouts typically follow within several blocks.
- Use a Shelley-era Cardano address compatible with your wallet.
- Check a Cardano explorer with the payout tx hash from your order page.
- Allow a few extra minutes if your wallet is still syncing the latest epoch.
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 ADA 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 → Cardano swaps.
How fast is a OP → ADA swap?
Most routes settle within minutes. Final timing follows Optimism mainnet deposit confirmations and Cardano mainnet payout speed.
Does TunnelSwap hold my OP or ADA?
No. You fund the deposit from your wallet and ADA 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.