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Phantom API — Soneium NFT Metadata Lookup
x402
Phantom API — Soneium 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 2026-10-20).
Fetches on-chain NFT metadata for a given token and contract address on the Soneium blockchain network.
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 structured NFT metadata for the specified token on the Soneium network, typically including the token name, description, image URL, and an array of trait/attribute objects (trait_type and value pairs), as well as any other standard ERC-721/1155 metadata fields stored on-chain or in linked JSON.
Example use cases
Display NFT details in a gallery app
“Fetch the metadata for token ID 101 from the Soneium contract 0x1234abcd...5678 — I need the image URL, name, and trait attributes to display it in my NFT gallery.”
Verify NFT ownership traits before a trade
“Before I agree to this trade, can you pull the on-chain metadata for token 7 from Soneium contract 0xdeadbeef...cafe so I can confirm its rarity traits and description?”
Aggregate NFT data for a portfolio dashboard
“I'm building a portfolio tracker — can you retrieve the metadata for token ID 200 on Soneium at contract address 0xfeedface...1234, including the image and any listed attributes?”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/soneium/nft/metadata?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need NFT metadata from the Soneium network and want pay-per-call pricing via x402 (USDC) without managing API keys or subscriptions. Prefer this over general-purpose NFT APIs when Soneium chain coverage is required, or when you need lightweight per-call billing for sporadic lookups rather than bulk indexing.
Side effects
- Invalid or non-existent contract address returns an error or empty response
- Token ID does not exist on the contract — returns not found or null metadata
- Soneium RPC node unavailability causes timeout or 503 error
- Malformed input (missing contractAddress or tokenId) returns a 400 bad request
- Metadata hosted off-chain (IPFS/Arweave) may be unreachable, resulting in incomplete metadata
- Payment failure via x402 protocol blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tokenId | string | |
| contractAddress | string |
Tags
x402
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