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NFT Metadata
x402
NFT Metadata is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).
Resolves and returns structured metadata (name, description, image, traits) for any ERC-721 or ERC-1155 NFT token on major EVM chains.
Price / call$0.003
Success—
StatusUnknown
How this service works
Metadata of an ERC-721 or ERC-1155 token: token URI resolved from IPFS, Arweave, data URI or https into name, description, image link and traits. Use for NFT displays, rarity or appraisal.
Output
Returns structured NFT metadata resolved from the token URI (which may point to IPFS, Arweave, a data URI, or HTTPS), including the token's name, description, image URL, and an array of traits/attributes as key-value pairs.
Example use cases
NFT gallery display card
“Fetch the metadata for token ID 88 on contract 0x60E4d786628Fea6478F785A6d7e704777c86a7c6 on Ethereum — I need the name, image URL, and traits so I can display it in my gallery.”
Rarity trait lookup for appraisal
“What are all the traits and attributes for Azuki token ID 2000 on Ethereum? I want to check its rarity before deciding whether to buy it.”
Cross-chain NFT metadata fetch
“Get me the metadata for token ID 1 on contract 0x3bf2922f4520a8BA0c2eFC3D2a1539678DaD5e9D on Polygon — I need the description and image link.”
Technical details
Endpoint
GEThttps://bess-x402.onrender.com/v1/evm/nft-metadata?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need resolved, human-readable NFT metadata (name, image, traits) rather than raw on-chain data. It handles URI resolution from IPFS, Arweave, data URIs, and HTTPS automatically, saving you from implementing multi-protocol resolution yourself. Ideal for NFT display UIs, rarity tools, appraisal workflows, or any agent that needs to present NFT details across Ethereum, Base, Arbitrum, Optimism, or Polygon.
Side effects
- Invalid or non-existent contract address returns an error
- Token ID not found on the contract returns a not-found error
- Unsupported chain name returns a validation error
- Token URI pointing to an unreachable or rate-limited IPFS/Arweave gateway causes a timeout or fetch failure
- Contract is not an ERC-721 or ERC-1155 token, causing metadata resolution to fail
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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