ENS resolve

Resolve an ENS name (e.g. vitalik.eth) to its Ethereum address — so an agent can turn a human-readable recipient into a payable address. Read-only on Ethereum mainnet. ?name=vitalik.eth

Input

Field	Type	Description
name *	string	an ENS name, e.g. name.eth

Example output

{
  "name": "vitalik.eth",
  "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "found": true
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/ens-resolve?name=vitalik.eth"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

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

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/ens-resolve?name=vitalik.eth");

Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

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