---
title: "Look up one HTS code (also GET /hts/{code}) (pay per call in USDC via x402, no key)"
method: GET
path: "/x402/api/hts"
tags: ["Dutyfinch"]
---

# Look up one HTS code (also GET /hts/{code}) (pay per call in USDC via x402, no key)

`GET /x402/api/hts`

## Request

- Base URL: `https://dutyfinch.cybermaxtools.com`
- URL: `https://dutyfinch.cybermaxtools.com/x402/api/hts`
- Auth: none required

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.

## Query parameters

- `code` string

## Response `200`

Results (same field names as the bulk version's dataset records) plus the free-tier limits.

- object

## Other responses

- `400`: Invalid input
- `401`: Invalid or revoked API key
- `402`: Payment Required: x402 payment requirements (body: x402Version 1 accepts[]; header PAYMENT-REQUIRED: x402 v2).
- `504`: Took too long; ask for fewer items

---

[API](https://skmtc.dev/cybermaxtools/apis/dutyfinch-api.md) · [All operations](https://skmtc.dev/cybermaxtools/apis/dutyfinch-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cybermaxtools/apis/dutyfinch-api/revisions/e333c51ba697?raw)