Tariff Resolver MCP server

by opsloft·io.github.opsloft/tariff-resolver·v1.1.0

US import duty research: HTS codes, Chapter 99 duties, MPF/HMF fees, landed cost. USITC data.

A91/100grade A

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Safety scan

A91/100

Adoption

Growing

2 stars78 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

calculate_tariff_scenario
Returns the HTS code's MFN/FTA base rate, ALL active chapter 99 rules (IEEPA/301/232 additional duties) matching
check_tariff_updates
Compares the current HTS snapshot with the previously fetched one. Call without codes to check the whole watchlist.
dataset_info
Fetch date, source, license, row counts — use to check data freshness.
search_hs_candidates
Returns top 8-10 digit HTS code candidates (with MFN/FTA rates and CBP CROSS ruling links) for a product description.
watch_tariff_changes
Saves HTS codes (with optional origin) to a local watchlist. After each dataset refresh, call check_tariff_updates

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

no findings

Code scan23 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 13 days ago15/15
Maintainer identityregistry namespace matches repository owner7/10

Overall 91/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

Runs npx -y tariff-resolver on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add tariff-resolver -- npx -y tariff-resolver

Is Tariff Resolver MCP server safe?: Yes, by our scan: it is graded A (91/100). Read the Tariff Resolver safety report
How do I install Tariff Resolver?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Tariff Resolver need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Tariff Resolver maintained?: The last commit was 13 days ago (2026-09-07). The latest release is v1.1.0.