> ## Documentation Index
> Fetch the complete documentation index at: https://docs.b3.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# Bridge to B3

> There are several ways to bridge over to B3 & our appchains.

<img src="https://mintcdn.com/npclabs/T8myXHRpwbznxu_Y/images/b3-banner.png?fit=max&auto=format&n=T8myXHRpwbznxu_Y&q=85&s=596d1876967f909ed18e495ac2c4a3d5" alt="Bridge to B3" className="w-full rounded-xl" width="600" height="120" data-path="images/b3-banner.png" />

<CardGroup cols={2}>
  <Card title="Basement Bridge" href="https://basement.fun/bridge">
    <img src="https://mintcdn.com/npclabs/i3FbahzgrmPWASGi/images/bsmnt-logo.svg?fit=max&auto=format&n=i3FbahzgrmPWASGi&q=85&s=36a7f773e7a283e0d178137172e5c68d" alt="Basement" className="p-8 bg-black rounded-2xl my-3" width="763" height="279" data-path="images/bsmnt-logo.svg" />

    Cross-chain bridge with instant deposits and withdrawals
  </Card>

  <Card title="Relay Bridge" href="https://relay.link/bridge/base?fromChainId=8453&fromCurrency=0xb3b32f9f8827d4634fe7d973fa1034ec9fddb3b3&toCurrency=0xb3b32f9f8827d4634fe7d973fa1034ec9fddb3b3">
    <img src="https://mintcdn.com/npclabs/6MmTGi9wpkGI2JFJ/images/relay-logo.avif?fit=max&auto=format&n=6MmTGi9wpkGI2JFJ&q=85&s=5c52e5faf76b2ad770b9b10daa784358" alt="Relay" className="p-8 bg-black rounded-2xl my-3" width="403" height="139" data-path="images/relay-logo.avif" />

    Bridge from any EVM chain & Solana to B3
  </Card>

  <Card title="Native Bridge" icon="bridge" href="#native-bridge">
    OP Canonical Bridge with 7-day withdrawal period
  </Card>

  <Card title="Bridge Contract" icon="code" href="#bridge-contract">
    Direct contract interaction for advanced users
  </Card>
</CardGroup>

## Cross Chain Bridge

<div style={{ marginBottom: '16px' }}>
  <span style={{ backgroundColor: '#3b82f6', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>Instant Deposits</span>
  <span style={{ backgroundColor: '#8b5cf6', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>Instant Withdrawals</span>
  <span style={{ backgroundColor: '#10b981', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px' }}>Low Fee</span>
</div>

Connect your wallet and bridge from major EVM networks in & out of B3.

<Steps>
  <Step title="Go to the Basement Bridge">
    Visit [basement.fun/bridge](https://basement.fun/bridge) to access the bridge interface.
  </Step>

  <Step title="Connect your Wallet">
    Connect your wallet using MetaMask, Coinbase Wallet, or other supported wallets.
  </Step>

  <Step title="Select network & funds">
    Choose the source network and the amount of funds you want to bridge to B3.
  </Step>

  <Step title="Confirm transaction">
    Confirm the transaction and you'll receive bridged funds in under a minute.

    <Check>
      Your funds will appear in your B3 wallet within 60 seconds.
    </Check>
  </Step>
</Steps>

<Card title="Use Basement Bridge" href="https://basement.fun" cta="Use Bridge" horizontal>
  <img src="https://mintcdn.com/npclabs/i3FbahzgrmPWASGi/images/bsmnt-logo.svg?fit=max&auto=format&n=i3FbahzgrmPWASGi&q=85&s=36a7f773e7a283e0d178137172e5c68d" alt="Basement" className="w-32" width="763" height="279" data-path="images/bsmnt-logo.svg" />

  Start bridging your assets to B3 with instant deposits and withdrawals
</Card>

## Instant Bridge

<div style={{ marginBottom: '16px' }}>
  <span style={{ backgroundColor: '#3b82f6', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>Instant Deposits</span>
  <span style={{ backgroundColor: '#8b5cf6', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>Instant Withdrawals</span>
  <span style={{ backgroundColor: '#10b981', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px' }}>Low Fee</span>
</div>

Easily bridge from any EVM chain & Solana to B3 with Relay.

<Steps>
  <Step title="Go to the Relay Bridge">
    Visit [relay.link](https://relay.link) to access the Relay bridge interface.
  </Step>

  <Step title="Connect your Wallet">
    Connect your wallet to start the bridging process.
  </Step>

  <Step title="Enter bridge amount">
    Enter the amount of ETH you want to bridge to B3.
  </Step>

  <Step title="Confirm transaction">
    Confirm the transaction and you'll receive bridged funds in under a minute.

    <Check>
      Relay supports bridging from multiple chains including Solana.
    </Check>
  </Step>
</Steps>

<Card title="Use Relay Bridge" href="https://relay.link" cta="Use Bridge" horizontal>
  <img src="https://mintcdn.com/npclabs/6MmTGi9wpkGI2JFJ/images/relay-logo.avif?fit=max&auto=format&n=6MmTGi9wpkGI2JFJ&q=85&s=5c52e5faf76b2ad770b9b10daa784358" alt="Relay" className="w-32" width="403" height="139" data-path="images/relay-logo.avif" />

  Bridge from any EVM chain and Solana to B3 instantly
</Card>

## Native Bridge

<div style={{ marginBottom: '16px' }}>
  <span style={{ backgroundColor: '#3b82f6', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>Base to B3</span>
  <span style={{ backgroundColor: '#f59e0b', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>7-Day Withdrawals</span>
  <span style={{ backgroundColor: '#10b981', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px' }}>No Fees</span>
</div>

Easily bridge from Base to B3 using the official OP Stack canonical bridge!

<Warning>
  Withdrawals from B3 back to Base have a 7-day challenge period for security. Use third-party bridges for instant withdrawals.
</Warning>

<Steps>
  <Step title="Visit the bridge">
    Go to [bridge.b3.fun](https://bridge.b3.fun) to access the official bridge.
  </Step>

  <Step title="Connect your Wallet">
    Connect your wallet to the bridge interface.
  </Step>

  <Step title="Choose direction">
    Select whether you want to:

    * **Deposit**: Bring funds from Base → B3
    * **Withdraw**: Bridge back from B3 → Base
  </Step>

  <Step title="Enter amount">
    Enter the amount of ETH you want to bridge.
  </Step>

  <Step title="Complete transaction">
    Click "Deposit" and confirm the transaction in your wallet.

    <Tip>
      Deposits to B3 are instant, but withdrawals take 7 days for the challenge period.
    </Tip>
  </Step>
</Steps>

<Card title="Use Official Bridge" icon="bridge" href="https://bridge.b3.fun" cta="Bridge" horizontal>
  Use the battle-tested OP Stack canonical bridge
</Card>

## Native Transfer (Bridge Contract)

<div style={{ marginBottom: '16px' }}>
  <span style={{ backgroundColor: '#3b82f6', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>Instant Deposits</span>
  <span style={{ backgroundColor: '#f59e0b', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px', marginRight: '8px' }}>7-Day Withdrawals</span>
  <span style={{ backgroundColor: '#10b981', color: 'white', padding: '4px 8px', borderRadius: '4px', fontSize: '12px' }}>No Fees</span>
</div>

Send Base ETH through the bridge contract. Transfer **Base ETH** to the following bridge address on **Base Mainnet**:

<Warning>
  This method is for advanced users only. Make sure you're sending from Base Mainnet to avoid losing funds.
</Warning>

```text Bridge Address theme={null}
0x769547a723783FCA36BAaf1ECcf9dfdbF6d09F38
```

<Note>
  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.
</Note>

<Accordion title="How to use the bridge contract">
  1. **Ensure you're on Base Mainnet** in your wallet
  2. **Send ETH** to the bridge contract address above
  3. **Wait for confirmation** - your funds will appear on B3 automatically
  4. **Check your B3 wallet** - switch to B3 network to see your bridged ETH

  <Warning>
    Double-check you're on Base Mainnet before sending. Sending from other networks may result in lost funds.
  </Warning>
</Accordion>