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2s.io NFT Lookup
x402
2s.io NFT Lookup is a paid API for AI agents from 2s.io, paid per call via x402, $0.0036/call, status unknown (last checked 2026-09-15).
Fetches live ERC-721 NFT ownership, collection info, and token metadata across Base, Ethereum, Polygon, Arbitrum, and Optimism from a contract address and token ID
Price / call$0.0036
Success—
StatusUnknown
How this service works
Live ERC-721 NFT read (Base, Ethereum, Polygon, Arbitrum, Optimism; keyless). Given a contract + tokenId: returns current owner, collection name/symbol, and tokenURI (IPFS auto-resolved to a gateway URL). Pass metadata=1 to also fetch and normalize the token's JSON metadata (name, description, image, attributes). For NFT provenance, ownership checks, and gallery rendering.
Output
Returns the current owner wallet address, collection name and symbol, the tokenURI (with IPFS auto-resolved to an HTTP gateway URL), and optionally the full normalized JSON metadata including token name, description, image URL, and attributes array.
Example use cases
Example prompt
“Who owns token ID 5281 on the contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13d on Ethereum, and can you also pull the full token metadata including its image and attributes?”
Technical details
Endpoint
GEThttps://2s.io/api/crypto/nftWhen to prefer
Use this endpoint when you need live, on-chain ERC-721 NFT data — current ownership, tokenURI, or full metadata — across multiple EVM chains without needing an API key. Prefer over block explorer scraping or manual IPFS resolution when you need normalized, ready-to-render NFT data with automatic IPFS gateway resolution.
Side effects
- Invalid or non-existent contract address returns an error
- Token ID does not exist on the contract returns not-found error
- Unsupported chain returns validation error
- IPFS metadata fetch failure if token URI is unreachable
- Rate limiting or payment failure returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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