eth_getproof - Worldchain

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

Returns the account and storage values of the specified account including the Merkle-proof on the World Chain network.

Parameters

Parameter

Type

Description

address

string

Address of the account

storageKeys

array

Array of storage keys to prove

blockNumber

string

Block number in hex, or "latest", "earliest", "pending"

Request

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getProof",
    "params": ["0x1234567890123456789012345678901234567890", ["0x0"], "latest"],
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getProof",
    "params": ["0x1234567890123456789012345678901234567890", ["0x0"], "latest"],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data)))
    .catch(error => console.log(error));

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_getProof",
    "params": ["0x1234567890123456789012345678901234567890", ["0x0"], "latest"],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

use reqwest::header;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::new();
    
    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header(header::CONTENT_TYPE, "application/json")
        .body(r#"{
            "jsonrpc": "2.0",
            "method": "eth_getProof",
            "params": ["0x1234567890123456789012345678901234567890", ["0x0"], "latest"],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "address": "0x1234567890123456789012345678901234567890",
        "accountProof": ["0x..."],
        "balance": "0x0",
        "codeHash": "0x...",
        "nonce": "0x0",
        "storageHash": "0x...",
        "storageProof": [...]
    }
}

Response Parameters

Field

Type

Description

address

string

Address of the account

accountProof

array

Array of RLP-serialized Merkle-Patricia proof nodes

balance

string

Balance of the account

storageProof

array

Array of storage proof objects

Use Case

The eth_getProof method on World Chain is typically used for:

State verification
Light client support
Cross-chain bridges
Proof generation

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid ACCESS-TOKEN

Web3 Integration

import { ethers } from 'ethers';

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

const proof = await provider.send('eth_getProof', ['0x1234567890123456789012345678901234567890', ['0x0'], 'latest']);
console.log('Proof:', proof);

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

const client = createPublicClient({
    chain: worldchain,
    transport: http('https://go.getblock.io/<ACCESS-TOKEN>/')
});

const proof = await client.getProof({
    address: '0x1234567890123456789012345678901234567890',
    storageKeys: ['0x0']
});
console.log('Proof:', proof);

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