eth_sendRawTransaction - ARC

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

This method broadcasts a signed transaction to the Arc network for execution. It is the primary method for submitting any state-changing operation — USDC transfers, smart contract calls, contract deployments, and FX engine swaps. Gas is paid in USDC.

Parameters

Parameter

Type

Required

Description

signedTxData

string

Yes

The signed transaction data (hex), produced offline by a signer such as ethers.js, viem, or web3.py

Request Example

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_sendRawTransaction",
    "params": [
        "0xf86c808504a817c80082520894d85498dbeaeb1df24be52eed4f52eac2fbd56245830f4240802ea04f3a1c..."
    ],
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_sendRawTransaction",
    "params": [
        "0xf86c808504a817c80082520894d85498dbeaeb1df24be52eed4f52eac2fbd56245830f4240802ea04f3a1c..."
    ],
    "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, null, 2)))
    .catch(error => console.log(error));

import requests
import json

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

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_sendRawTransaction",
    "params": [
        "0xf86c808504a817c80082520894d85498dbeaeb1df24be52eed4f52eac2fbd56245830f4240802ea04f3a1c..."
    ],
    "id": "getblock.io"
})

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

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

use reqwest::Client;
use serde_json::json;

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

    let payload = json!({
        "jsonrpc": "2.0",
        "method": "eth_sendRawTransaction",
        "params": [
                "0xf86c808504a817c80082520894d85498dbeaeb1df24be52eed4f52eac2fbd56245830f4240802ea04f3a1c..."
        ],
        "id": "getblock.io"
});

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);

    Ok(())
}

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b"
}

Response Parameters

Field

Type

Description

result

string

Transaction hash, used to track inclusion via eth_getTransactionReceipt

Use Cases

Send USDC payments and settlements
Execute ERC-20 token transfers
Interact with Arc's built-in FX engine for stablecoin swaps
Deploy smart contracts on Arc
Submit ERC-4337 UserOperations through bundlers
Cross-border payment flows

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid <ACCESS-TOKEN>

-32602

Invalid params

Request parameters are missing or malformed

-32601

Method not found

The method is not supported by this node

429

Too Many Requests

Rate limit exceeded for your plan

-32000

Insufficient funds for gas

Sender does not have enough USDC to pay gas + transfer value

-32000

Nonce too low

The transaction's nonce has already been used

-32000

Replacement transaction underpriced

Replacement transaction must offer a higher gas price

SDK Integration

import { ethers } from 'ethers';

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

// Send 10 USDC. Note the 6-decimal parseUnits call — NOT parseEther.
const tx = await wallet.sendTransaction({
    to: '0xd85498dbeaeb1df24be52eed4f52eac2fbd56245',
    value: ethers.parseUnits('10', 6)
});
console.log('Tx Hash:', tx.hash);
await tx.wait();
console.log('Confirmed!');

import { createWalletClient, http, defineChain, parseUnits } from 'viem';
import { privateKeyToAccount } from 'viem/accounts';

const arcTestnet = defineChain({
    id: 5042002,
    name: 'Arc Testnet',
    nativeCurrency: { name: 'USD Coin', symbol: 'USDC', decimals: 6 },
    rpcUrls: { default: { http: ['https://go.getblock.io/<ACCESS-TOKEN>/'] } }
});

const account = privateKeyToAccount('0x...');

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

// Send 10 USDC. parseUnits with 6 decimals — NOT parseEther.
const hash = await client.sendTransaction({
    to: '0xd85498dbeaeb1df24be52eed4f52eac2fbd56245',
    value: parseUnits('10', 6)
});
console.log('Tx Hash:', hash);

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