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Aether NFT Metadata Lookup (Base)
x402
Aether NFT Metadata Lookup (Base) is a paid API for AI agents from aether-x402.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Fetches on-chain NFT metadata (name, image, tokenURI) for a given contract and token ID on the Base network, paid via x402 (USDC on Base).
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call Base onchain data, token risk verdicts and x402 payability audits over x402 (USDC on Base).
Output
A JSON object containing the NFT's metadata (name, image URI, and other on-chain attributes) plus the raw tokenURI (often an IPFS link), enabling downstream display or verification of the asset.
Example use cases
NFT portfolio display enrichment
“I have a list of Base NFTs in my wallet — can you pull the name and image for token 101 from contract 0xabcdef1234567890abcdef1234567890abcdef12 so I can show it in my dashboard?”
Verify NFT authenticity details
“Can you fetch the on-chain metadata for token ID 7 from Base NFT contract 0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef and tell me what the tokenURI and image resolve to?”
NFT marketplace listing prep
“I'm listing token 305 from Base contract 0xfeedface00000000000000000000000000000001 — grab its on-chain name and IPFS image so I can auto-fill the listing details.”
Technical details
Endpoint
POSThttps://aether-x402.vercel.app/v1/base/nft-metadata?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to resolve NFT metadata (name, image, tokenURI) for a specific token on the Base L2 network and want a pay-per-call model with no subscription. It is particularly useful for AI agents that already operate in the x402 micropayment ecosystem using USDC on Base, and need lightweight, on-demand NFT lookups without standing up their own RPC infrastructure.
Side effects
- Invalid contract address format (not a valid 0x-prefixed 40-char hex) returns a 400 error
- Token ID does not exist on the contract returns a not-found or null metadata response
- Contract is not an NFT contract (ERC-721/1155) may return empty or error response
- IPFS gateway timeouts can cause slow or failed metadata resolution
- Payment failure or insufficient USDC balance results in 402 Payment Required
- Rate limits or network congestion on Base may cause transient failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tokenId | — | |
| contract | string |
Output
Schema · Response
{
"type": "json",
"example": {
"metadata": {
"name": "...",
"image": "ipfs://..."
},
"tokenURI": "ipfs://..."
}
}Tags
x402
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