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NFT Collection Metadata Lookup
x402
NFT Collection Metadata Lookup is a paid API for AI agents from agent402.tools, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Fetches comprehensive metadata for an ERC-721 or ERC-1155 NFT collection by contract address across major EVM chains, including name, supply, floor price, OpenSea data, and social links.
Price / call$0.002
Success—
StatusUnknown
How this service works
Fetch NFT collection (ERC-721 / ERC-1155) metadata by contract address on Ethereum, Base, Polygon, Arbitrum, or Optimism: name, symbol, token type, total supply, deployer, OpenSea slug + image, floor (ETH), Twitter/Discord, and verification (safelist) status. Use to label a contract address with its collection identity before pulling tokens or sales.
Output
Returns a structured object containing the collection's name, token symbol, token standard (ERC-721 or ERC-1155), total supply, deployer wallet address, OpenSea slug and image URL, current floor price in ETH, Twitter handle, Discord invite, and a verification/safety flag from OpenSea.
Example use cases
Example prompt
“Can you pull up the full metadata for the NFT collection at contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D on Ethereum — I want the name, floor price, total supply, OpenSea info, and any Twitter or Discord links.”
Technical details
Endpoint
POSThttps://agent402.tools/api/nft-collectionWhen to prefer
Use this endpoint when you need rich, aggregated NFT collection metadata—including social links, OpenSea details, and floor price—from a single contract address lookup across Ethereum, Base, Polygon, Arbitrum, or Optimism. Prefer this over on-chain-only RPC calls when you need off-chain enrichment like OpenSea data and social profiles in one response.
Side effects
- Invalid or non-NFT contract address returns an error or empty metadata
- Unsupported network name causes a validation error
- Contract exists but has no OpenSea listing, resulting in null floor/slug/image fields
- Rate limiting or network RPC issues causing timeouts
- Newly deployed contracts may have incomplete or missing metadata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| network | string | Chain: ethereum, base, polygon, arbitrum, optimism (default ethereum). |
| contract | string | NFT contract address (0x-prefixed 40-hex). |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "BoredApeYachtClub",
"source": "alchemy-nft-v3",
"symbol": "BAYC",
"network": "ethereum",
"contract": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
"tokenType": "ERC721",
"discordUrl": "https://discord.gg/3P5K3dzgdB",
"floorPrice": 13.5,
"description": "The Bored Ape Yacht Club is a collection of 10,000 unique Bored Ape NFTs.",
"externalUrl": "https://boredapeyachtclub.com",
"openSeaSlug": "boredapeyachtclub",
"totalSupply": "10000",
"openSeaImage": "https://...",
"safelistStatus": "verified",
"deployerAddress": "0xaba7161a7fb69c88e16ed9f455ce62b791ee4d03",
"twitterUsername": "BoredApeYC",
"floorPriceSource": "opensea",
"deployedBlockNumber": 12287507
}
}Tags
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