eth_estimateUserOperationGas

Estimates the gas values for a UserOperation.

Supported EntryPoints

eth_estimateUserOperationGas supports versions v0.6 and v0.7 of ERC-4337. Check our FAQs to determine which version you should use.

This endpoint requires a dummy signature in the userOp. Check our FAQs to learn what a dummy signature is and which dummy signature you should use.

Path parameters

apiKeystringRequired

Request

This endpoint expects an object.
UserOperationobjectRequired

Contains gas limits and prices (optional). This can be either a v0.6 or v0.7 user operation but must match the version of the EntryPoint at the address of the second parameter.

entryPointstringRequiredformat: "^0x[0-9a-fA-F]{40}$"

The address to which the request should be sent. This must be one of the EntryPoint returned by the supportedEntryPoints method and should match the version of the userOp in the first parameter.

stateOverrideSetobjectOptional

Optional.Allows changes to the state of a contract before executing the call. For example, you can modify variable values (like balances or approvals) for that call without changing the contract itself on the blockchain.

In more technical terms, the state override set is an optional parameter that allows executing the call against a modified chain state. It is an address-to-state mapping, where each entry specifies some state to be overridden prior to executing the call.

Response

Gas values estimated for the UserOperation.
entrypointV06Responseobject
entrypointV07Responseobject