eth_maxPriorityFeePerGas - Base

Example code for the eth_maxPriorityFeePerGas JSON-RPC method. Complete guide on how to use eth_maxPriorityFeePerGas JSON-RPC in GetBlock Web3 documentation.

The eth_maxPriorityFeePerGas method returns a suggested max priority fee per gas (tip) for EIP-1559 transactions. On Base, priority fees are typically low since the sequencer processes transactions in order of receipt.

Parameters

• None

Request

cURL

cURL

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_maxPriorityFeePerGas",
    "params": [],
    "id": "getblock.io"
}'

Axios

Request

Rust

Response

Example Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0xf4240"
}

Response Parameters

Parameter	Type	Description
jsonrpc	string	JSON-RPC protocol version ("2.0")
id	string	Request identifier matching the request
result	string	Suggested max priority fee per gas in wei (hex)

Use Cases

1

Fee Estimation

Get suggested priority fee for transactions.

2

EIP-1559 Transactions

Set appropriate priority fee.

3

Cost Optimization

Balance speed vs cost.

4

Gas Strategies

Implement dynamic fee strategies.

Error Handling

Error Code	Message	Description
-32603	Internal error	Node internal failure

Web3 Integration

Ethers.js

Ethers.js (v6)

const { ethers } = require('ethers');

const provider = new ethers.JsonRpcProvider('https://go.getblock.io/<ACCESS-TOKEN>/');

async function getFeeData() {
    const feeData = await provider.getFeeData();
    
    console.log('Gas Price:', ethers.formatUnits(feeData.gasPrice, 'gwei'), 'gwei');
    console.log('Max Fee Per Gas:', ethers.formatUnits(feeData.maxFeePerGas, 'gwei'), 'gwei');
    console.log('Max Priority Fee:', ethers.formatUnits(feeData.maxPriorityFeePerGas, 'gwei'), 'gwei');
    
    return feeData;
}

getFeeData();

Viem