Get ETH Balance of an Address

POST

https://robinhood.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Retrieves the balance (in wei) of a given Robinhood Chain address.

Body

application/json

JSON-RPC 2.0 request to the Robinhood Chain mainnet endpoint.

Request payload for Get ETH Balance of an Address.

jsonrpcstringrequired

JSON-RPC version

methodstringrequired

JSON-RPC method name

paramsArray<string>required

Array with 2 parameters: 1. Address (20-byte hex string with '0x' prefix) 2. Block tag (e.g., 'latest', 'earliest', 'pending', or block number in hex)

idintegerrequired

Request ID

Response

200OK

Balance (in wei) as hex string

500Internal Server Error

Upstream node or gateway error.

Get ETH Balance of an Address

curl -X POST 'https://robinhood.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getBalance",
    "params": [
      "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
      "latest"
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://robinhood.nownodes.io/");
const result = await provider.send("eth_getBalance", [
  "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
  "latest"
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://robinhood.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_getBalance",
  "params": [
    "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
    "latest"
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://robinhood.nownodes.io/"))
response = w3.provider.make_request("eth_getBalance", [
  "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
  "latest"
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://robinhood.nownodes.io/"),
});

const result = await client.request({
  method: "eth_getBalance",
  params: [
  "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
  "latest"
],
});

console.log(result);

const endpoint = "https://robinhood.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "eth_getBalance", params: [
  "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
  "latest"
], id: 1 });
console.log(result);

const response = await fetch('https://robinhood.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "eth_getBalance",
      "params": [
        "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
        "latest"
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "eth_getBalance",
  "params": [
    "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
    "latest"
  ],
  "id": 1
}

response = requests.post('https://robinhood.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://robinhood.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "eth_getBalance",
    "params": [
      "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
      "latest"
    ],
    "id": 1
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "method": "eth_getBalance",
  "params": [
    "0xe150982cac57950884dc1691fd9d6e4fcadac3d3",
    "latest"
  ],
  "id": 1
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x28b388675ed5b0"
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal hex string without 0x prefix into Go value of type common.Address"
  }
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal hex string without 0x prefix into Go value of type common.Address"
  }
}

Documentation

How to migrate to NOWNodes

Get ETH Balance of an Address

Authorizations

Body

Response