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Blockscout NFT Holdings Lookup by Address
x402
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
Price / call$0.002
Success—
StatusUnknown
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.
Example use cases
NFT portfolio audit for a wallet
“Pull up all the NFTs held by 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on the Ethereum mainchain — I need their names, images, and metadata.”
Verifying NFT ownership before a trade
“Before I finalize this deal, can you check if address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B actually holds any NFTs from contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D on Ethereum?”
Displaying NFT gallery for a user profile
“I need to build a gallery for the wallet 0x1234abcd5678ef on the Base chain — fetch all their NFTs with thumbnails and animation URLs from Blockscout.”
Technical details
Endpoint
GEThttps://api.blockscout.com/%7Bchain_id%7D/api/v2/addresses/%7Baddress_hash_param%7D/nftWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"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": {}
}
}Tags
x402
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