Tunnel in 3 steps
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Choose how much AVAX to send and paste the Ethereum (Base) address that should receive funds on Base mainnet.
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Open the order to freeze the quote and reveal a one-time deposit destination.
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Broadcast AVAX to that destination. Once confirmations clear, ETH is pushed to your payout wallet.
Before you broadcast
- Avalanche C-Chain confirmations are typically very fast — often under a minute.
- Send AVAX on Avalanche C-Chain only — not X-Chain or P-Chain unless your order specifies them.
- Use a C-Chain compatible wallet and address (0x…). Leave enough AVAX for gas.
- 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.
Avalanche — fast smart-contract L1
AVAX is the native token of Avalanche C-Chain — quick finality, EVM compatibility, and deep cross-chain liquidity.
AVAX on Avalanche C-Chain
Use an Avalanche C-Chain wallet for deposits. X-Chain and P-Chain addresses are not interchangeable with C-Chain.
Leave enough AVAX in your wallet to cover gas on top of the swap amount.
ETH on Base — Coinbase L2
Native ETH on Base — Ethereum's value on Coinbase's L2 with low fees, fast finality, and growing on-chain activity.
Base ETH not received?
Confirm your wallet is on Base mainnet and fully synced — not Ethereum L1.
Base ETH payout tips
- Payouts go to Base — verify your wallet network is Base (chain ID 8453).
- Check Basescan with the payout tx hash from your order page.
- Bridging to Ethereum L1 is a separate step after you receive ETH on Base.
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 AVAX 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 Avalanche → Ethereum (Base) swaps.
How fast is a AVAX → ETH swap?
Most routes settle within minutes. Final timing follows Avalanche C-Chain deposit confirmations and Base mainnet payout speed.
Does TunnelSwap hold my AVAX 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 AVAX?
Only send on the network shown for the order (Avalanche C-Chain). Wrong-chain deposits can be unrecoverable — review the safety guides before you broadcast.