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Blockscout NFT Collections by Address
x402
Blockscout NFT Collections 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 2026-09-11).
Retrieves all NFT collections held by a specific blockchain address on a given chain, including token metadata and individual NFT instances
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
Returns a paginated list of NFT collections held by the specified address, each containing the token's metadata (name, symbol, type, icon URL, total supply, exchange rate, holders count) and an array of individual NFT instances with their ID, image URL, media URL, thumbnail sizes (60x60, 250x250, 500x500), animation URL, metadata, and external app URL. A next_page_params object is included for pagination.
Example use cases
NFT Portfolio Audit for a Wallet
“Can you pull up all the NFT collections owned by 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B on Polygon (chain ID 137)? I want to see what collections they hold and how many tokens from each.”
Verify NFT Ownership Before Transfer
“Before I proceed, check if address 0x1234567890abcdef1234567890abcdef12345678 on Arbitrum (chain ID 42161) actually owns any NFTs from the contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D.”
Cross-Chain NFT Inventory for DApp Integration
“I'm building a gallery and need to list all ERC-1155 NFT collections held by wallet 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe on Base (chain ID 8453) — give me the token details and any thumbnail URLs.”
Technical details
Endpoint
GEThttps://api.blockscout.com/%7Bchain_id%7D/api/v2/addresses/%7Baddress_hash_param%7D/nft/collectionsWhen to prefer
Use this endpoint when you need to enumerate the specific NFT collections and individual token instances held by a known wallet address on a specific blockchain. Prefer this over generic token balance endpoints when NFT-specific metadata (images, media, thumbnails, animation URLs) is required. It is ideal for building NFT portfolio viewers, verifying NFT ownership, or auditing wallet contents across multiple EVM-compatible chains supported by Blockscout.
Side effects
- Invalid chain_id returns 404 or empty result
- Malformed address_hash_param returns 422 or error response
- Address with no NFTs returns empty items array
- Unsupported token_type filter value may return 400
- Rate limiting or payment failure returns 402 Payment Required
- Chain not supported by Blockscout returns error or empty response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"items": [
{
"token": {
"name": "string",
"type": {},
"symbol": "string",
"decimals": "string",
"icon_url": "string",
"reputation": "string",
"volume_24h": "string",
"bridge_type": "string",
"address_hash": "string",
"total_supply": "string",
"exchange_rate": "string",
"holders_count": "string",
"foreign_address": "string",
"origin_chain_id": "string",
"circulating_supply": "string",
"circulating_market_cap": "string"
},
"amount": "string",
"token_instances": [
{
"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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