> For the complete documentation index, see [llms.txt](/llms.txt).

# Sei bundler methods

Infura integrates with the Pimlico account abstraction bundler infrastructure, enabling developers to access [ERC-4337](https://docs.erc4337.io/) smart account features.

The following [bundler methods](/services/concepts/bundler/) are supported on Sei mainnet and testnet:

- [eth_sendUserOperation](/services/reference/sei/json-rpc-methods/bundler/eth%5Fsenduseroperation/): Submits a user operation to be included onchain.
- [eth_estimateUserOperationGas](/services/reference/sei/json-rpc-methods/bundler/eth%5Festimateuseroperationgas/): Simulates the user operation and estimates the appropriate gas limits.
- [eth_getUserOperationReceipt](/services/reference/sei/json-rpc-methods/bundler/eth%5Fgetuseroperationreceipt/): Fetches the receipt of a user operation.
- [eth_getUserOperationByHash](/services/reference/sei/json-rpc-methods/bundler/eth%5Fgetuseroperationbyhash/): Fetches the user operation by hash.
- [eth_supportedEntryPoints](/services/reference/sei/json-rpc-methods/bundler/eth%5Fsupportedentrypoints/): Fetches the EntryPoint addresses supported by the bundler.
- [pimlico_getUserOperationGasPrice](/services/reference/sei/json-rpc-methods/bundler/pimlico%5Fgetuseroperationgasprice/): Returns the gas prices that must be used for the user operation.
- [pimlico_getUserOperationStatus](/services/reference/sei/json-rpc-methods/bundler/pimlico%5Fgetuseroperationstatus/): Returns the user operation status.
- [pimlico_simulateAssetChanges](/services/reference/sei/json-rpc-methods/bundler/pimlico%5Fsimulateassetchanges/): Simulates a user operation to predict the asset changes it will cause.