A bundler is a node that monitors the alternative mempool of
UserOperations and bundles multiple
UserOps together to forward to the EntryPoint contract as a single transaction.
UserOps can be sent from different accounts and are bundled and sent to the
EntryPoint contract via a
The bundler is controlled by its own EOA which initially pays for the gas fees upfront and is then repaid by either the sender or a paymaster if the transaction is sponsored.
The entry point contract then uses the
executeOp functions on the smart wallet account contract to verify and execute the
UserOps on behalf of the users.
It allows you to send transactions with smart wallet accounts.