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Phantom API — Ethereum NFT Metadata Lookup
x402
Phantom API — Ethereum NFT Metadata Lookup is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Fetches on-chain metadata for a specific Ethereum NFT given its contract address and token ID
Price / call$0.01
Success—
StatusUnknown
How this service works
Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.
Output
Returns on-chain or off-chain metadata associated with the specified Ethereum NFT, typically including the token name, description, image URL, external URL, and an array of traits/attributes (trait_type and value pairs). May also include animation URL, background color, or other ERC-721/ERC-1155 metadata standard fields.
Example use cases
NFT trait lookup for rarity analysis
“Fetch the metadata for token ID 7804 from the Bored Ape Yacht Club contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D on Ethereum — I need its traits to calculate rarity.”
NFT portfolio display enrichment
“I'm building a wallet dashboard — can you get the metadata including image, name, and attributes for token ID 12 from Ethereum contract 0x60E4d786628Fea6478F785A6d7e704777c86a7c6 so I can display it properly?”
NFT provenance and listing verification
“Before I buy this NFT, can you look up token ID 3333 on contract 0x49cF6f5d44E70224e2E23fDcdd2C053F30aDA28b and tell me what its metadata says — name, image, and any special attributes?”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/ethereum/nft/metadata?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, pay-per-call NFT metadata resolution on Ethereum without managing your own RPC node or indexer subscription. It is ideal for agents that only occasionally need NFT data (avoiding monthly subscription costs), or when building lightweight pipelines that enrich portfolio data, verify NFT traits before a transaction, or display NFT assets in a UI.
Side effects
- Invalid or non-existent contract address returns an error or empty response
- Token ID not minted or out of range results in a not-found error
- Token URI points to unreachable IPFS or off-chain metadata server causing timeout
- Contract is not an NFT standard (ERC-721/ERC-1155) and does not expose metadata
- Network congestion may delay on-chain resolution
- Payment failure via x402 protocol results in 402 response and no data returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tokenId | string | |
| contractAddress | string |
Tags
x402
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