Estimate import duties for cross-border shopping decisions. Helps answer "what will I roughly owe in duties if I buy this from Japan vs the EU vs the US?"
- Classifies product descriptions to Harmonized System (HS) tariff codes using reasoning guided by an embedded classification guide
- Looks up tariff rates for HS categories across major source countries importing into the US, Canada, and Mexico
- Compares landed cost across multiple source countries to find the most cost-efficient purchase option
- Flags categories where 2025-2026 tariff rules have been volatile (China-origin goods, steel/aluminum, etc.)
General-purpose shoppers making medium-to-large individual cross-border purchases where duties can swing the total cost by $10-$1000+. Not for commercial import operations or customs filing.
This is an estimator, not a customs tool. Every result ships with a confidence indicator and a "verify before relying" note. Volatile categories get a visible flag. When the classifier is uncertain on the HS code, it shows top candidates with both rates so you see the range.
Edit config.json to change the default destination country, currency, or covered origins. The embedded schedules can be updated by editing src/schedules.ts.
duty_lookup— HS code + origin + destination → rate, estimated duty, confidence, volatility flagcompare_landed_cost— multiple sources with prices → ranked landed cost comparison table
The bundled skill (tariff-estimator) activates when you ask about import duties, customs fees, cross-border shopping costs, or whether buying from one country vs another is cheaper after duties. It guides the classification reasoning and the conversational output format.