Look up one HTS code (also GET /hts/{code}) (pay per call in USDC via x402, no key)
Description and full description path, general / special / column 2 duty rates (10-digit lines inherit from their 8-digit parent), units, footnotes, Section 301 China status (list, additional rate, status in_effect / upcoming / suspended / expired, exclusions with end dates), the 2026 US–China reduction flag, child lines and the HTS release the answer comes from.
Pay per call with x402: $0.012 per call in USDC on Base. No key, no account: an unpaid call returns 402 with the payment requirements; retry with the X-PAYMENT (x402 v1) or PAYMENT-SIGNATURE (v2) header.
Request
- Base URL: https://dutyfinch.cybermaxtools.com
- URL: https://dutyfinch.cybermaxtools.com/x402/api/hts
- Auth: none required
Query parameters
HTS code: 4, 6, 8 or 10 digits, dots optional (e.g. 8516.60.40, 9503000013)
Response
Results (same field names as the bulk version's dataset records) plus the free-tier limits.
Changes
No recorded changes to this operation across all 1 revision of this API.