NFT holdings for an address

Return the NFTs owned by a wallet address on a given network. Each row carries the collection name, contract address, token ID, image URL (where available), and ERC-721 vs ERC-1155 standard. Up to 100 per call — paginate with `pageKey` from the previous response.

Input

Field	Type	Description
address *	string	0x-prefixed 40-char hex wallet address.
network	string	ethereum / base / polygon / arbitrum / optimism (default base).
pageKey	string	Optional pagination cursor from a previous response.

Example output

{
  "address": "0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0",
  "network": "base",
  "totalCount": 0,
  "nfts": [],
  "pageKey": null
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/nft-holdings \
  -H "Content-Type: application/json" \
  -d '{"address":"0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0","network":"base"}'

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/nft-holdings", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "address": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "network": "base"
  }),
});

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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