Search and retrieve tariff classifications, duty rates, and preferential treatment across 58,000+ records in both the US HTS and Canadian Customs Tariff schedules. Nightly sync. No scraping.
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This is the actual production API. Search either schedule by keyword and see real results.
Up to 5 results shown. Get a trial key for full access.
Every response is a structured JSON object with the same fields whether you're querying US or Canadian records.
Query by keyword or retrieve a specific code directly. Both endpoints return the same structured JSON. Works for US HTS and Canadian Customs Tariff.
Your trial key authenticates against both the US and Canadian datasets. No separate credentials, no separate billing for each dataset.
The changelog endpoints expose every detected amendment. Poll /changelog daily and you know about every rate or description change the morning after publication.
Canadian records include all applicable treatment columns — UST, CPTPT, CCCT, GPT, and others. Not just MFN, not a flat table.
Skip polling entirely. Subscribe to change events and receive a POST payload the same night CBSA or USITC publishes an amendment.
We don't restructure the API between data updates. Your integration runs the same query tomorrow as today; the data behind it changes, the contract doesn't.
Fair question. The USITC API covers US HTS only and has no Canadian data, no change detection, and no changelog. If your use case is cross-border — or if you need to know when rates change — it doesn't cover you.
Full access to both schedules, all endpoints, nightly change data. No credit card required.
Start free trial → Tier 1 — $199/mo — US HTS + US changelogWeekly digest of US & Canadian tariff changes — plain English, no noise.
Free. For compliance teams and developers who need to stay current.
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