API Service – TariffWolf™

Classification as an API.

Send a product description, technical specs, or SKU metadata. Receive an HS code, ECCN classification, license-requirement flag, and audit-ready evidence — in real time.

No data migration. No painful onboarding. Just one endpoint that fits into your existing systems.

REST API with JSON responses & evidence trail
Batch endpoints for catalog-level workloads
Webhook callbacks for async expert review
Versioned, backwards-compatible schema

POST /v1/classify

{
  "title": "iPhone 17 Pro",
  "description": "Apple iPhone 17 Pro 256 GB: 15.93 cm (6.3″) Display
                  with Promotion up to 120Hz, A19 Pro Chip, Breakthrough
                  Battery Life, Pro Fusion Camera System with Center Stage
                  Front Camera; Cosmic Orange",
  "destination": "US"
}

→  {
     "hs_code":  "8517.13.00.00",
     "eccn":     "5A992.c",
     "license":  "NLR",
     "confidence": "high",
     "review_status": "expert-validated"
   }

Drops into the tools your team already uses.

Most compliance work still happens in spreadsheets. We meet you there — and we meet you in the ERP / TMS too.

Google Sheets

Native add-on with formula-style classification.

Microsoft Excel

Office 365 add-in for desktop & online.

Office 365

Centralized governance & audit logging.

ERP / TMS

Custom adapters for SAP, Oracle, NetSuite & more.

Custom API

Sector-specific endpoints built to your spec.

Enterprise security

SSO, audit logs, encrypted data at rest & in transit.

API Tutorial

See the API in action.

A 7-minute walkthrough of the TariffWolf classification API — from a single product description to a fully justified, audit-ready response — including the spreadsheet add-on, the Excel formula syntax, and the JSON shape your enterprise integration will see in production.

Live request / response walkthrough
Spreadsheet add-on (Sheets & Excel) demo
Justification & audit-trail walkthrough
Webhook expert-review callback example

TariffWolf™ API 7 MIN

TariffWolf API
Tutorial — 7 min

POST /v1/classify | Sheets & Excel | Justification

Real request → real response, end-to-end

Watch the API tutorial

API Models

Pick the model that fits your workflow.

Four HS classification tiers — from quick 6-digit lookups to full justification with follow-up Q&A. Pay only for what you use.

`tw-hs-sprint`

Starter

6-digit HS classification only. Fastest path to a code when speed matters more than country-level precision.

0.75 credit / classification

`tw-hs-engine`

`tw-hs-intelligence`

Defensible

Full HS code with technical and legal justification — audit-ready evidence on every line.

1.5 credit / classification

`tw-hs-command`

Enterprise

Full HS code with justification plus interactive follow-up questions and answers — the deepest classification dialog available.

2.0 credit / classification

Export Control determination — on demand

Need ECCN, EAR99, ITAR, EU Dual-Use, or restricted-party screening through the API? We deliver export control determination as a tailored service — scoped to your jurisdictions, regulations, and SKU mix. Pricing is matched to the depth of analysis you require, with the same expert-in-the-loop validation.

Built for real compliance workflows.

Catalog classification at scale

Push thousands of SKUs through the API and receive HS, ECCN, and license flags with expert review on edge cases.

In-flow shipment classification

Classify items at order capture or shipment booking — before customs documentation is generated.

Audit prep & reclassification

Re-run your historic catalog with current regulations — surface drift, fix it, document it.

Classification scope

Every classification a global trade team actually needs.

One API surface — a complete map from product description to a defensible classification record.

HS / HTS code lookup HS · HTS

Send a product description, material composition, and intended use — receive a 6-digit HS code and a country-specific 8/10-digit HTS code. Suitable for HS code lookup, HTS code lookup harmonized tariff schedule, HS tariff classification number lookup, and harmonized tariff schedule search use cases — automated at scale, expert-validated on edge cases.

ECCN determination & lookup ECCN

Submit dual-use technical specs and receive an ECCN number from the Commerce Control List. Built-in ECCN number lookup against the full ECCN list, with explicit handling of high-traffic codes like 5A992.c and the EAR99 catch-all. Returns license-required flags by destination, end-user, and end-use.

EAR99 screening EAR99

For most consumer items, the answer is EAR99 — but the answer needs to be defensible. Our endpoint returns an EAR99 classification with the underlying determination logic and a documented audit trail, so reviewers don't have to recreate the analysis later.

Spreadsheet-native classification Sheets · Excel

The most common classification scenario in the enterprise is still the spreadsheet. Our Google Sheets add-on and Office 365 / Excel add-in expose the same API as a formula — drop =TWHSCODE('input data cell range', 'destination country') next to your product description and the column fills with audit-grade results.

Need a custom API for your sector?

Tell us about your data flow, country mix, and SKU volume — we will scope it on the call.

Book a Call

Integrated Classification Intelligence