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NFT owner lookup (ERC-721

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 failover.

Resource URL

https://agent402.tools/api/erc721-owner

Payment options

exactSolana

$0.002 USDC

Max amount

Pay to
J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg
Timeout
300s

Tags

webtoolsagentsx402cryptonfterc721ownerownerof

For agents

Prompt snippet for AI agents

Find and pay for this x402 resource:
URL: https://agent402.tools/api/erc721-owner
Type: http
Sources: cdp, thirdweb, payai

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