# HTS Classify — HS/HTS10 Tariff Code Classifier

> HTS Classify — HS/HTS10 Tariff Code Classifier is a paid API for AI agents from hts-classify.x402supply.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Classifies a product description into candidate HS/HTS10 tariff codes using BM25 retrieval over the USITC HTS schedule, returning parent-chain descriptions, duty rates, and confidence scores.

## Facts

- Endpoint: POST https://hts-classify.x402supply.com/mcp
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hts-classify-hs-hts10-tariff-code-classifier-7fdb7e75
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WPu1K7UVNkV2GVAUqGmQM

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability hts-classify-hs-hts10-tariff-code-classifier-7fdb7e75 -d '<json body>'
```

Example prompt: What HTS10 tariff code would apply to stainless steel kitchen knives with plastic handles imported into the US — and what's the general duty rate?

## When to prefer this

Choose this endpoint when you need a fast, programmatic first-pass HTS/HS tariff code suggestion based on a product description, especially for e-commerce duty estimation, trade compliance pre-screening, or customs documentation drafting. It is distinct from AI-generated guesses because it uses deterministic BM25 retrieval directly over the official USITC HTS schedule with heading-agreement boosting, providing traceable parent-chain descriptions and duty rates. Prefer it over generic LLM-based classification when you need a confidence score and an auditable code hierarchy, but note it is not a substitute for a formal customs ruling.

## Known failure modes

- Vague or ambiguous product descriptions may return low-confidence candidates with similar scores
- Very niche or novel products may not match well against the HTS schedule and return low-relevance codes
- The BM25 retrieval is deterministic and does not account for product-specific customs rulings or recent schedule amendments
- Results may be incorrect for products that span multiple HTS chapters; broker verification is always required

## How this service works

Classify a product description into candidate HS/HTS10 tariff codes. Deterministic BM25 retrieval over the USITC HTS schedule with heading-agreement boosting, returning the full parent-chain description, general duty rate, and a score-gap confidence per candidate. Not a customs ruling — always includes a disclaimer to verify with a licensed broker.

## Output

A ranked list of candidate HTS10 tariff codes, each with: the full parent-chain heading description, the general duty rate from the USITC schedule, and a score-gap confidence value indicating how clearly that candidate outranked the next. Includes a mandatory disclaimer that results are not a formal customs ruling and should be verified with a licensed customs broker.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hts-classify-hs-hts10-tariff-code-classifier-7fdb7e75/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hts-classify.x402supply.com](https://www.zero.xyz/host/hts-classify.x402supply.com/llms.txt)