Estimate gas costs

linea_estimateGas is the recommended method for estimating gas price and gas limit on Linea. Unlike other L2s, Linea does not assume that all transactions will have the same gas price. Instead, a minimum gas price is applied to all transactions, and the total gas price is partly calculated based on the amount of data in a given transaction. linea_estimateGas takes this into account, and returns a more accurate gas price recommendation than the alternatives.

See our API reference, or our technology section for more information about how gas works on Linea.

Linea also supports:

• eth_estimateGas
• eth_gasPrice
• eth_feeHistory.

tip

Linea supports the Ethereum EIP-1559 gas price model:

total fee = units of gas used * (base fee + priority fee)

and includes support for type 0, type 1 and type 2 transactions.

linea_estimateGas

linea_estimateGas returns gasLimit, baseFeePerGas, and priorityFeePerGas, and therefore provides a more precise recommended gas price than the alternatives.

It can also help prevent transactions from being rejected due to exceeding module limits.

Example

Request

curl https://linea-mainnet.infura.io/v3/YOUR-API-KEY \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0","method": "linea_estimateGas","params": [{"from": "0x971e727e956690b9957be6d51Ec16E73AcAC83A7","gas":"0x21000"}],"id": 53}'

Response

{
  "jsonrpc": "2.0",
  "id": 53,
  "result": {
    "baseFeePerGas": "0x7",
    "gasLimit": "0xcf08",
    "priorityFeePerGas": "0x43a82a4"
  }
}

See the reference page for full usage.