Search and validate Harmonized System (HS) and HTS tariff codes. Get duty rates, product descriptions, and chapter/heading breakdowns for customs compliance.
GET /lookup?code=8471.30 X-API-Key: csk_your_key
{
"code": "8471.30",
"description": "Portable digital automatic data processing machines",
"chapter": "84 - Nuclear reactors, boilers, machinery",
"dutyRate": "0%"
}
Production-ready with comprehensive coverage and fast response times.
Search HS codes by keyword or validate a specific code.
Full product descriptions at chapter, heading, and subheading levels.
Returns associated duty rates and trade agreement notes.
6-digit international HS codes plus US HTS 10-digit codes.
Validate user-entered codes and suggest corrections.
No external API calls — built-in database with sub-100ms responses.
One API key unlocks TariffCode API plus 20+ other production-ready APIs. Free plan available instantly.