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OneSource NFT Metadata Lookup
x402
OneSource NFT Metadata Lookup is a paid API for AI agents from skills.onesource.io, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).
Fetches NFT metadata, traits, and image URI for any ERC721 or ERC1155 token by contract address and token ID via live Ethereum RPC with IPFS resolution
Price / call$0.008
Success—
StatusUnknown
How this service works
Fetches metadata for NFTs on-chain.
Output
Returns NFT metadata including token name, description, image URI (with IPFS resolved to a usable URL), and an array of trait/attribute key-value pairs for the specified ERC721 or ERC1155 token on the given EVM network.
Example use cases
Example prompt
“What are the traits and image for Bored Ape Yacht Club token ID 1234 on Ethereum — can you pull the full metadata from the contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D?”
Technical details
Endpoint
GEThttps://skills.onesource.io/api/chain/nft-metadataWhen to prefer
Use this endpoint when you need to resolve NFT metadata including traits and images for ERC721 or ERC1155 tokens on Ethereum mainnet or supported EVM-compatible chains (Base, Avalanche, Sepolia, MegaETH). Preferred when IPFS resolution is needed alongside on-chain eth_call, and when you want a single call that returns fully resolved metadata rather than a raw tokenURI string.
Side effects
- Invalid contract address format returns validation error
- Token ID does not exist on the contract returns not found or empty metadata
- IPFS resolution timeout if metadata hosted on slow IPFS nodes
- Contract is not ERC721 or ERC1155 compliant returns call failure
- Unsupported network name returns enum validation error
- Token metadata stored off-chain on unreachable server returns fetch error
Input
{
"network": "ethereum",
"contract": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D",
"token_id": "1234"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"data": {
"metadata": {
"image": "http://ipfs.onesource.io/ipfs/QmZ2ddtVUV1brVGjpq6vgrG6jEgEK3CqH19VURKzdwCSRf",
"attributes": [
{
"value": "Sleepy",
"trait_type": "Eyes"
},
{
"value": "Army Green",
"trait_type": "Background"
},
{
"value": "Leather Jacket",
"trait_type": "Clothes"
},
{
"value": "Blue",
"trait_type": "Fur"
},
{
"value": "Bored Bubblegum",
"trait_type": "Mouth"
},
{
"value": "Fisherman's Hat",
"trait_type": "Hat"
}
]
},
"protocol": "ipfs",
"token_id": "1234",
"token_uri": "ipfs://QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/1234",
"resolved_url": "https://ipfs.io/ipfs/QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/1234",
"contract_address": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D"
},
"meta": {
"endpoint": "/api/chain/nft-metadata",
"request_id": "499cc08aa676a3ee"
}
}Tags
x402
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