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Saylor Innovations Data Desk – NFT Metadata Resolver
x402
Saylor Innovations Data Desk – NFT Metadata Resolver is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Fetches NFT metadata (name, image, description, traits) for any token ID on 16 EVM chains by resolving token URI from the contract, then fetching from IPFS, Arweave, or inline data.
Price / call$0.01
Success—
StatusUnknown
How this service works
NFT metadata by token id on 16 EVM chains: token URI from the contract, then name, image, description and traits resolved from IPFS, Arweave or inline data.
Output
A JSON object containing the chain name and chain ID, contract address, token ID, token URI returned by the contract, the URI scheme, whether metadata was fetched, the NFT name, image URL (with IPFS links rewritten to a gateway), description, up to 50 trait/attribute pairs, the ERC standard (ERC-721 or ERC-1155), the data source, and a plain-language note explaining the result. Includes a fetch_note field when metadata could not be retrieved.
Example use cases
NFT trait lookup for rarity analysis
“Can you pull the traits for token ID 7495 on the Azuki contract 0xED5AF388653567Af2F388E6224dC7C4b3241C544 on Ethereum? I want to see all its attributes.”
Cross-chain NFT image retrieval
“Fetch the image and description for token ID 42 from the contract 0x3bf2922f4520a8BA0c2eFC3D2a1539678DaD5e9D on Base — I need to display it in my app.”
ERC-1155 metadata resolution on Polygon
“Look up the metadata for token ID 3 on the ERC-1155 contract 0x2953399124f0cbb46d2cbacd8a89cf0599974963 on Polygon, including any traits or properties it has.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/chain/nft-metadata?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve full NFT metadata (name, image, traits) for a specific token ID on any of 16 supported EVM chains, especially when the token URI points to IPFS or Arweave storage that requires gateway resolution. Prefer this over general blockchain RPC calls when you want structured, ready-to-use metadata without handling URI resolution, IPFS pinning, or Arweave fetching yourself. Covers ERC-721 and ERC-1155 standards.
Side effects
- Contract not found on specified chain — returns error or empty token URI
- Token ID does not exist — contract reverts or returns empty URI
- IPFS or Arweave gateway timeout — metadata_fetched false with fetch_note explaining failure
- Invalid chain name or chain ID — returns error indicating unsupported chain
- Inline data URI malformed — metadata parsing fails with fetch_note
- Rate limiting or payment failure at $0.01 USDC per call — HTTP 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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