Applied tariff rates at HS 6-digit (UNCTAD TRAINS)
Changed onPreferential and Most-Favoured-Nation applied tariffs at HS 6-digit granularity from the UNCTAD TRAINS database redistributed by WITS. Returns applied rate, MFN/preferential split, min/max/average rates, nomenclature revision (H0-H5), and tariff line counts. Reporter + year + product are the minimum required parameters; the upstream rejects broad queries with HTTP 413. Country inputs accept either ISO3 alpha (USA) or M49 numeric (840); internal translation to M49 is performed automatically.
Request
- Base URL: https://sugra.ai
- URL: https://sugra.ai/api/v1/wits/tariffs/hs6
- Auth: API key in header x-api-key
Query parameters
Reporter country. ISO3 alpha or M49 numeric (e.g. USA or 840).
Observation year. TRAINS annual, typical lag 1-2 years.
HS 6-digit product code (digit string, e.g. 020110 for bovine carcasses) or all with narrow country/year.
Partner country. M49 numeric, ISO3 alpha, or 000 / WLD for World aggregate.
Tariff data type: reported (published) or aveestimated (ad-valorem-equivalent estimated).
Response
TRAINS tariff observations at HS 6-digit with per-line breakdown.
Example response
{
"meta": {
"endpoint": "/api/v1/fred/us/cpi",
"data_time": "2026-04-16T14:30:00Z",
"response_time": "2026-04-16T14:30:12Z",
"provider": "Sugra API v1.0.1",
"data_age_days": 8.532,
"source": "sugra_crypto",
"attribution": "Short interest and Reg SHO daily short volume data is owned by and sourced from FINRA (Financial Industry Regulatory Authority).",
"fallback_chain": [
"sugra_crypto",
"sugra_finance"
],
"stale_since": "2026-09-08T12:00:00Z",
"period": "2026-Q1",
"notes": "the UKMTO report behind these counts is dated 2026-08-21 and is 11 days old"
}
}Changes
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added the non-success response with the status
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