# Blockscout NFT Holdings Lookup by Address

> Blockscout NFT Holdings Lookup by Address is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Returns all NFT tokens owned by a specific blockchain address on a given chain, including metadata, media URLs, and token details

## Facts

- Endpoint: GET https://api.blockscout.com/%7Bchain_id%7D/api/v2/addresses/%7Baddress_hash_param%7D/nft
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-nft-holdings-lookup-by-address-7bb19234
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lL8GZ3hmui57VqMwApn1G

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 blockscout-nft-holdings-lookup-by-address-7bb19234
```

Example prompt: Can you show me all the NFTs owned by wallet address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum using Blockscout — I want to see their metadata, images, and what type of tokens they are?

## When to prefer this

Use this endpoint when you need comprehensive NFT holdings data for a specific wallet address on a particular blockchain, including rich metadata, media URLs, and thumbnails — especially when you need multichain support via a single API provider. Prefer Blockscout over alternatives when you need open, permissionless access to on-chain NFT data without requiring a proprietary API key tied to a single chain, and when you want paginated results with structured thumbnail and animation data ready for display.

## Known failure modes

- Invalid or malformed address hash returns an error or empty result
- Unsupported or incorrect chain_id results in a 404 or empty response
- Address with no NFTs returns an empty items array
- Rate limiting or payment failure at $0.002/call returns a 402 response
- Pagination token mismatch may cause duplicate or missing items across pages
- Token contract address filter returning no results if the address holds none from that contract

## How this service works

Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data

## Output

A paginated list of NFT items owned by the address, each containing: token ID, token type (ERC-721/ERC-1155), token metadata, image URL, media URL, thumbnail variants (60x60, 250x250, 500x500, original), animation URL, external app URL, owner details, uniqueness flag, and next-page pagination parameters for fetching additional results.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "properties": {
      "chain_id": {
       "type": "string"
      },
      "address_hash_param": {
       "type": "string"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "type": {
       "type": "string"
      },
      "token_id": {
       "type": "string"
      },
      "token_type": {
       "type": "string"
      },
      "items_count": {
       "type": "integer"
      },
      "token_contract_address_hash": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "items": [
   {
    "id": "string",
    "owner": {},
    "token": {},
    "value": "string",
    "metadata": {},
    "image_url": "string",
    "is_unique": true,
    "media_url": "string",
    "media_type": "string",
    "thumbnails": {
     "60x60": "string",
     "250x250": "string",
     "500x500": "string",
     "original": "string"
    },
    "token_type": "string",
    "animation_url": "string",
    "external_app_url": "string",
    "image_media_type": "string",
    "animation_media_type": "string"
   }
  ],
  "next_page_params": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockscout-nft-holdings-lookup-by-address-7bb19234/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockscout.com](https://www.zero.xyz/host/api.blockscout.com/llms.txt)