Smart Wallet enables apps to pay for users’ transaction gas fees, allowing free transactions or removing the need for users to hold native tokens.

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Technical Details

  • Sponsored transactions are facilitated onchain via ERC-4337 compliant paymasters.
  • Apps must have a ERC-7677 compliant paymaster service.
  • Apps can share this paymaster to Smart Wallet via the ERC-7677 paymasterService capability on a wallet_sendCalls request.