Evm Address

{
  "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "at": "2026-10-10T12:48:30.232Z",
  "chains": {
    "base": {
      "codeSize": 23,
      "eip7702Delegated": true,
      "isContract": true,
      "nativeBalance": "3.12882180347263728",
      "stablecoins": {
        "USDC": "44.783666"
      },
      "txCount": 70
    },
    "ethereum": {
      "codeSize": 23,
      "eip7702Delegated": true,
      "isContract": true,
      "nativeBalance": "5.768184715803065014",
      "stablecoins": {
        "USDC": "37.192124",
        "USDT": "291.368219"
      },
      "txCount": 5969
    }
  },
  "ens": "vitalik.eth",
  "ensRecords": {
    "avatar": "https://euc.li/vitalik.eth",
    "com.github": "vbuterin",
    "com.twitter": "VitalikButerin",
    "description": "mi pinxe lo crino tcati",
    "url": "https://vitalik.ca"
  },
  "source": "public RPC (publicnode.com)"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://lumenworks-x402-decoder.onrender.com/v1/evm/address' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"vitalik.eth"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://lumenworks-x402-decoder.onrender.com/v1/evm/address' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"vitalik.eth"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Flumenworks-x402-decoder.onrender.com%2Fv1%2Fevm%2Faddress&method=POST
const res = await pay("https://lumenworks-x402-decoder.onrender.com/v1/evm/address", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "vitalik.eth"
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://lumenworks-x402-decoder.onrender.com/v1/evm/address",
        json={
            "address": "vitalik.eth",
        },
    )
    print(res.status_code, res.text)