{"x402Version":2,"resources":[{"url":"/lookup","method":"POST","description":"Look up US import duty rates by HTS code or product description (base General/Column 2 rates, USITC HTS).","price":"$0.08","network":"eip155:8453","input_schema":{"type":"object","properties":{"hts":{"type":"string","description":"HTS code, with or without dots, e.g. '8708.21' or '8708210000'."},"query":{"type":"string","description":"Product description to search, e.g. 'lithium batteries'."}}}}]}