eth_sendRawTransaction

Submits a pre-signed transaction for broadcast to the network. You must sign the transaction offline first.

Parameters

1. DATA — The signed transaction data (hex-encoded).

Returns

DATA (32 bytes) — The transaction hash, or the zero hash if the transaction is not yet available.

Request

curl -X POST https://eth-mainnet.blockreq.com/v1/rpc/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_sendRawTransaction",
    "params": ["0xf86c808504a817c80082520894..."],
    "id": 1
  }'

⚠️ This method requires a private endpoint (API key). It is not available on public endpoints.

Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331"
}

Code Examples

JavaScript (ethers.js v6)

import { JsonRpcProvider, Wallet } from "ethers";
const provider = new JsonRpcProvider("https://eth-mainnet.blockreq.com/v1/rpc/YOUR_API_KEY");
const wallet = new Wallet("0xYOUR_PRIVATE_KEY", provider);

const tx = await wallet.sendTransaction({
  to: "0xRecipientAddress",
  value: "1000000000000000000", // 1 ETH in wei
});
console.log("Tx hash:", tx.hash);
await tx.wait();
console.log("Confirmed!");

Python (web3.py)

from web3 import Web3
w3 = Web3(Web3.HTTPProvider("https://eth-mainnet.blockreq.com/v1/rpc/YOUR_API_KEY"))

signed = w3.eth.account.sign_transaction({
    "to": "0xRecipientAddress",
    "value": w3.to_wei(1, "ether"),
    "gas": 21000,
    "gasPrice": w3.eth.gas_price,
    "nonce": w3.eth.get_transaction_count("0xYourAddress"),
    "chainId": 1
}, "0xYOUR_PRIVATE_KEY")

tx_hash = w3.eth.send_raw_transaction(signed.raw_transaction)
print(f"Tx hash: {tx_hash.hex()}")

RU Cost

Method	Cost
eth_sendRawTransaction	20 RU