eth_gasPrice - Unichain

Example code for the eth_gasPrice JSON-RPC method. Complete guide to using the eth_gasPrice JSON-RPC method in the GetBlock.io Web3 documentation.

This method returns the current gas price on Unichain in wei, derived from recent blocks. It is used to price legacy transactions.

Parameters

This method does not accept any parameters.

Request

cURL

curl --location --request POST 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_gasPrice",
    "params": [],
    "id": "getblock.io"
}'

Axios

example.js

const axios = require('axios');

const response = await axios.post('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/', {
    jsonrpc: '2.0',
    method: 'eth_gasPrice',
    params: [],
    id: 'getblock.io'
}, {
    headers: { 'Content-Type': 'application/json' }
});

console.log(response.data.result);

Request

example.py

import requests

response = requests.post(
    'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/',
    headers={'Content-Type': 'application/json'},
    json={
        'jsonrpc': '2.0',
        'method': 'eth_gasPrice',
        'params': [],
        'id': 'getblock.io'
    }
)

print(response.json())

Rust

example.rs

use reqwest::Client;
use serde_json::{json, Value};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let response = client
        .post("https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&json!({
            "jsonrpc": "2.0",
            "method": "eth_gasPrice",
            "params": [],
            "id": "getblock.io"
        }))
        .send()
        .await?
        .json::<Value>()
        .await?;

    println!("Result: {}", response["result"]);
    Ok(())
}

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x3b9aca00"
}

Response Parameters

Parameter	Type	Description
jsonrpc	string	JSON-RPC protocol version ("2.0")
id	string	Request identifier matching the request
result	string	Hex-encoded gas price in wei

Use Cases

• Legacy Pricing: Set the gas price for a legacy transaction

• Cost Estimates: Combine with a gas estimate to compute a fee

• Fee Dashboards: Display the current network gas price

• Send Timing: Delay non-urgent sends when the gas price is high

Error Handling

Error Code	Message	Description
-32602	Invalid params	A parameter is missing or has the wrong type or format
-32603	Internal error	The node failed to process the request

Web3 Integration

Ethers.js

ethers-example.js

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

const provider = new ethers.JsonRpcProvider('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/');

const feeData = await provider.getFeeData();
console.log(feeData.gasPrice);

Viem

viem-example.js

import { createPublicClient, http } from 'viem';
import { unichain } from 'viem/chains';

const client = createPublicClient({ chain: unichain, transport: http('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/') });

const gasPrice = await client.getGasPrice();
console.log(gasPrice);