TariffSense

Our duty engine, inside your own tools.

The engine behind our duty calculator, classification tools and customs audits, available through an API and an MCP server. Wire it into your own systems or hand it to an AI assistant.

Three things you can ask it.

For imports into the US and Canada, with the rules in force on the date you ask about.

  • Tariff calculation

    Send an HS code, a country of origin and an entry date. Get back the full duty breakdown: the tariffs that apply, how they stack, and any declarations or claims the entry needs.

  • HS classification

    Send a product description. Get back suggested HS codes with the reasoning and references behind each one, so you can check a code before you commit to it.

  • Customs audit

    Send entry summaries and supporting documents. Get back line-by-line findings on classification, duty rates and declared values, each with the reason and the fix.

An API for your own systems.

Call it from your ERP, your TMS, your broker workflow or an internal tool. Results come back as structured data your systems can store, show or act on.

An MCP server for AI assistants.

Connect an assistant that supports the Model Context Protocol, and it can look up duties, suggest classifications and check entries with the same rules our own product uses, instead of guessing from the open web.

The same rules our customers use.

There is no separate dataset behind the API. When a tariff notice is published, our AI-assisted pipeline captures it within hours and ships the tested rules within a day, for the calculator, the audits and the API alike.

Frequently asked questions

Teams that want TariffSense results inside their own software: importers with in-house compliance or ERP systems, brokers and forwarders with their own platforms, and developers building trade tools or AI assistants.

Access is in preview. Request it through the form and tell us what you're building. We'll share the documentation and set up access for your use case.

Yes. The API, the MCP server, the free duty calculator and our customs audits all run on the same tariff measures and the same rules, kept current by one pipeline.

TariffSense stays up to date with the latest trade regulations, and our internal team reviews and validates regulatory updates before they're published. However, the tool is intended for research and planning purposes. We recommend working with a licensed customs broker to prepare and file your customs entries.

No. We don't train models on your data, and neither do the model providers we use. What you send is used to answer your request.

Tell us what you're building.

API and MCP access is in preview. We'll set you up with access and the documentation for your use case.