starknet_estimateMessageFee RPC Method

Parameters

MSG_FROM_L1

object

REQUIRED

The Message from L1 object which contains the following fields:

from_address

string

REQUIRED

The address of the L1 contract sending the message

to_address

string

REQUIRED

The target L2 address the message is sent to

entry_point_selector

string

REQUIRED

The selector of the l1_handler in invoke in the target contract

payload

array

REQUIRED

The payload of the message

block_id

string

REQUIRED

The hash of the requested block, the block number (height) of the requested block, or a block tag (latest or pending)

Returns

result

object

The result object with the following fields:

gas_consumed

string

The Ethereum gas consumption of the transaction

gas_price

string

The gas price (in wei or fri, depending on the tx version) that was used in the cost estimation

data_gas_consumed

string

The Ethereum data gas consumption of the transaction

data_gas_price

string

The data gas price (in wei or fri, depending on the tx version) that was used in the cost estimation

overall_fee

string

The estimated fee for the transaction (in wei or fri, depending on the tx version), equals to gas_consumed*gas_price + data_gas_consumed*data_gas_price

unit

string

The units in which the fee is given

Request

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curl --location 'https://docs-demo.strk-mainnet.quiknode.pro/' \
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--header 'accept: application/json' \
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--header 'content-type: application/json' \
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--data '{
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    "id": 1,
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    "jsonrpc": "2.0",
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    "method": "starknet_estimateMessageFee",
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    "params": [
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        {
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            "from_address": "FROM_ADDRESS",
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            "to_address": "TO_ADDRESS",
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            "entry_point_selector": "ENTRY_POINT_SELECTOR",
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            "payload": []
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        },
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        "latest"
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    ]
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}'

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