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Using B3 with Your Wallet

It’s easy to connect with any Ethereum wallet including MetaMask, Coinbase Wallet, Rainbow, and more.
These buttons work with MetaMask and other Web3 wallets. They’ll automatically add the network configuration or switch to B3 if it’s already added.

Add B3 Mainnet

Using B3 Explorer Recommended

Add with Chainlist

Use Chainlist to add B3 to your wallet

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Wallet-Specific Instructions

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MetaMask

1

Open MetaMask

Click the MetaMask extension in your browser
2

Access Networks

Click the network dropdown at the top and select “Add network”
3

Add Network Manually

Click “Add a network manually” at the bottom
4

Enter B3 Details

Fill in the B3 network information
See the complete B3 Mainnet configuration
5

Save and Switch

Click “Save” and MetaMask will automatically switch to B3
You’re now connected to B3! You’ll see “B3 Mainnet” in your network dropdown.

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Coinbase Wallet

1

Open Coinbase Wallet

Launch the Coinbase Wallet browser extension
2

Navigate to Settings

Go to the Settings tab and click Networks
3

Add Custom Network

Click the plus sign (➕) in the top right to Add custom network
4

Configure B3 Network

In the Add custom network dialog, enter the B3 mainnet information:
See the complete B3 Mainnet configuration for copyable values
5

Save Configuration

Click “Save” to add B3 to your available networks
Coinbase Wallet will automatically detect that the native token is ETH

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Rainbow Wallet

1

Open Rainbow

Launch Rainbow wallet on your mobile device or browser extension
2

Access Settings

Tap the profile icon and go to Settings → Networks
3

Add Custom Network

Tap “Add Custom Network” and enter B3 details
See the complete B3 Mainnet configuration for copyable values
4

Connect to B3

Save the configuration and switch to B3 Mainnet

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B3 Mainnet Configuration

B3 Mainnet

Complete configuration details for B3 Mainnet:Network Name:
B3 Mainnet
Chain ID:
8333
RPC URL:
https://mainnet-rpc.b3.fun
Explorer URL:
https://explorer.b3.fun
Native Token:
Symbol: ETH
Decimals: 18

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B3 Testnet Configuration

B3 Testnet

Complete configuration details for B3 Testnet:Network Name:
B3 Testnet
Chain ID:
1993
RPC URL:
https://testnet-rpc.b3.fun
Explorer URL:
https://testnet-explorer.b3.fun
Native Token:
Symbol: ETH
Decimals: 18

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Troubleshooting

  • Double-check the Chain ID (8333 for mainnet)
  • Ensure the RPC URL is correct: https://mainnet-rpc.b3.fun
  • Try refreshing your wallet or restarting the browser
  • Verify you’re connected to the correct B3 network - Check that you have sufficient ETH for gas fees - Ensure the contract address is valid on B3
  • B3 typically processes transactions in 1-2 seconds - If experiencing delays, check the B3 network status - Consider adjusting gas price if needed
  • Import token contracts manually using the B3 Explorer
  • Ensure you’re viewing the correct network in your wallet
  • Some tokens may need to be manually added to your wallet’s token list
Always verify that users are connected to the correct B3 network before executing transactions. The Chain ID for B3 Mainnet is 8333.
Ready to start building on B3? Your wallet is now configured! Check out our SDK documentation to begin integrating B3 into your application.