Task

Ownerof

4 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

NFT owner lookup (ERC-721 x402 REST usage

Who owns this NFT? Calls ownerOf(tokenId) on any ERC-721 contract on Ethereum, Base, Polygon, Arbitrum, or Optimism. Complements nft-holdings (which lists a WALLET's NFTs) - this answers by TOKEN. Keyless multi-endpoint...

agent402.tools Crypto & Payments 7 calls / 30d checked 2026-10-26

0.002 USDC per call per call

NFT owner and metadata x402 REST usage

Who owns a given ERC721 token id, plus its tokenURI and collection name in the same call. Answers is this NFT still theirs without an indexer or an API key. Via eth_call (ownerOf).

flat-rate-llm.kikoribera03.workers.dev Crypto & Payments 2 calls / 30d checked 2026-10-26

0.005 USDC per call per call

base-nft-owner x402 REST usage

Who owns this NFT? ERC721 owner lookup on Base mainnet via ownerOf(tokenId).

x402.agentindex.world Crypto & Payments 2 calls / 30d checked 2026-10-26

0.003 USDC per call per call

Erc721 owner x402 REST usage

Who currently owns one ERC721 token — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Data & Finance 1 calls / 30d checked 2026-10-26

0.003 USDC per call per call

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