# NFT Holdings Lookup by Wallet

> NFT Holdings Lookup by Wallet is a paid API for AI agents from agent402.tools, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns all NFTs owned by a given wallet address on a specified EVM-compatible network, with collection name, contract address, token ID, image URL, and token standard.

## Facts

- Endpoint: POST https://agent402.tools/api/nft-holdings
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nft-holdings-lookup-by-wallet-27162290
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7nmg0vo1hNQIp4j-F6wdS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nft-holdings-lookup-by-wallet-27162290 -d '<json body>'
```

Example prompt: Can you pull up all the NFTs owned by the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum — I want to see the collection names, token IDs, and any images?

## When to prefer this

Use this endpoint when you need a comprehensive, paginated inventory of all NFTs held by a specific wallet across major EVM chains (Ethereum, Base, Polygon, Arbitrum, Optimism). Prefer this over on-chain RPC calls when you want structured metadata including images and collection names without manually querying each contract.

## Known failure modes

- Invalid or malformed wallet address returns an error
- Unsupported network name returns a validation error
- pageKey from a different query or expired session may return no results or an error
- Wallet with zero NFTs returns an empty list
- Rate limiting or payment failure returns a 402 or 429 error

## How this service works

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.

## Output

A paginated list of up to 100 NFT records, each containing collection name, contract address, token ID, image URL (if available), and token standard (ERC-721 or ERC-1155), plus a pageKey for fetching the next page if more results exist.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "description": "0x-prefixed 40-char hex wallet address."
  },
  "network": {
   "type": "string",
   "description": "ethereum / base / polygon / arbitrum / optimism (default base)."
  },
  "pageKey": {
   "type": "string",
   "description": "Optional pagination cursor from a previous response."
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nft-holdings-lookup-by-wallet-27162290/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)