Bridge to B3
There are several ways to bridge over to B3 & our appchains.
Cross Chain Bridge
Instant Deposits Instant Withdrawals Low Fee
Connect your wallet and bridge from major EVM networks in & out of B3.
Go to the Basement Bridge
Visit basement.fun/bridge to access the bridge interface.
Connect your Wallet
Connect your wallet using MetaMask, Coinbase Wallet, or other supported wallets.
Select network & funds
Choose the source network and the amount of funds you want to bridge to B3.
Confirm transaction
Confirm the transaction and you'll receive bridged funds in under a minute.
Your funds will appear in your B3 wallet within 60 seconds.
Instant Bridge
Instant Deposits Instant Withdrawals Low Fee
Easily bridge from any EVM chain & Solana to B3 with Relay.
Go to the Relay Bridge
Visit relay.link to access the Relay bridge interface.
Connect your Wallet
Connect your wallet to start the bridging process.
Enter bridge amount
Enter the amount of ETH you want to bridge to B3.
Confirm transaction
Confirm the transaction and you'll receive bridged funds in under a minute.
Relay supports bridging from multiple chains including Solana.
Native Bridge
Base to B3 7-Day Withdrawals No Fees
Easily bridge from Base to B3 using the official OP Stack canonical bridge!
Withdrawals from B3 back to Base have a 7-day challenge period for security. Use third-party bridges for instant withdrawals.
Visit the bridge
Go to bridge.b3.fun to access the official bridge.
Connect your Wallet
Connect your wallet to the bridge interface.
Choose direction
Select whether you want to:
- Deposit: Bring funds from Base → B3
- Withdraw: Bridge back from B3 → Base
Enter amount
Enter the amount of ETH you want to bridge.
Complete transaction
Click "Deposit" and confirm the transaction in your wallet.
Deposits to B3 are instant, but withdrawals take 7 days for the challenge period.
Native Transfer (Bridge Contract)
Instant Deposits 7-Day Withdrawals No Fees
Send Base ETH through the bridge contract. Transfer Base ETH to the following bridge address on Base Mainnet:
This method is for advanced users only. Make sure you're sending from Base Mainnet to avoid losing funds.
text0x769547a723783FCA36BAaf1ECcf9dfdbF6d09F38
When you send ETH to this address from Base, it will automatically appear in your wallet on B3. This is a direct contract interaction method.
- Ensure you're on Base Mainnet in your wallet
- Send ETH to the bridge contract address above
- Wait for confirmation - your funds will appear on B3 automatically
- Check your B3 wallet - switch to B3 network to see your bridged ETH
Double-check you're on Base Mainnet before sending. Sending from other networks may result in lost funds.