Networks

Mainnet Networks

• Base
• Arbitrum
• Optimism
• Zora
• Polygon
• BNB
• Avalanche
• Ethereum mainnet (not recommended due to costs)

Testnet Networks

• Sepolia
• Base Sepolia
• Optimism Sepolia

Details

Addresses across Networks

Users have the same Smart Wallet address across supported networks.

Deployment

• Smart Wallets are deployed using the "counterfactual deployment" pattern
• The wallet contract is deployed on first transaction
• Same address is reserved across all chains through CREATE2
• Deployment costs are included in the first transaction

initCode

• initCode determines the wallet's address
• Contains factory address and initialization parameters
• Ensures consistent address across all chains
• Used by bundlers to deploy the wallet if needed

tx.origin Behavior

• tx.origin will be the bundler EOA address, not the Smart Wallet address
• Consider this when integrating with existing contracts

Adding Network Support

For a network to be supported, it needs:

• Safe Singleton Factory (CREATE2 deployer) deployed at 0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7
• ERC-4337 Entrypoint v0.6 deployed at 0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789
• Smart Wallet Factory deployed at 0x0BA5ED0c6AA8c49038F819E587E2633c4A9F428a
• ERC-4337 bundler meeting Coinbase's standards (availability, latency, security)
• Integration work from the Smart Wallet team