35,571 HTS codes. Real-time duty rates. Section 301, 232, AD/CVD overlays. One API call to know what you'll pay at the border.
/api/v1/searchSearch HTS codes by product description or partial codeq (required), country, limit (1-50)/api/v1/lookupLook up a specific HTS code with full duty breakdowncode (required), country/api/v1/bulkBatch lookup — descriptions and/or HTS codesitems[] with description/hts_code/country/api/v1/keysGet a free API key (no auth required)email (required)/api/v1/docsMachine-readable API documentation (JSON)nonecurl "https://ustariffrates.com/api/v1/search?q=steel+rebar&country=china&limit=5" \
-H "X-Api-Key: YOUR_API_KEY"| Field | Description |
|---|---|
| hts_code | 10-digit Harmonized Tariff Schedule code |
| description | Official USITC description |
| base_duty | Base ad valorem or specific duty rate |
| section_122 | Section 122 global surcharge (%) |
| section_232 | Section 232 steel/aluminum/copper rate (%) |
| section_301_china | Section 301 China tariff rate (%) |
| total_estimated | Total estimated duty rate including all overlays |
| adcvd_risk | Anti-dumping/countervailing duty risk flag |
Pass your API key via any of these methods:
X-Api-Key: YOUR_KEYAuthorization: Bearer YOUR_KEY?api_key=YOUR_KEYUnauthenticated requests are IP-rate-limited to 100/month.
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