{"slug":"138-197-15-135-sslip-io-v1-nft-owner-491533","title":"Current owner of an ERC-721 token (ownerOf) on Base, Ethereum, Arbitrum or Optim","host":"138-197-15-135.sslip.io","method":"GET","resource":"https://138-197-15-135.sslip.io/v1/nft/owner","category":"market","description":"Current owner of an ERC-721 token (ownerOf) on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM.","price_listed":0.0025,"price_asked":0.0025,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":629,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"chain":"base","contract":"0x03c4738Ee98aE44591e1A4A4F3CaB6641d95DD9a","tokenId":"1"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"queryParams":{"properties":{"chain":{"description":"Chain: base (default), ethereum, arbitrum, optimism","type":"string"},"contract":{"description":"NFT contract","type":"string"},"tokenId":{"description":"Token id (decimal)","type":"string"}},"required":["contract","tokenId"],"type":"object"}},"required":["queryParams"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-27","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.0025,"price_match":true,"latency_ms":629,"error":null}],"description_full":"Current owner of an ERC-721 token (ownerOf) on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM.","last_updated":"2026-10-27T16:50:26.229Z","schemes":["exact"]}