Call when an agent needs the ERC-721 owner of token_id on a Base contract, plus whether ERC-165 reports ERC-721. A missing token errors. Read-only. No spend. Send JSON {"contract":"0x1111111111111111111111111111111111111111","token_id":"1"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/base-nft-owner first.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.003000 USDC | 0x1D61...5a38 |