Tariff Resolver

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

Connector by opsloft · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 3

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Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/opsloft-tariff-resolver

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

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

Reviews

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Nov 1, 2026.

Tools: 4 read · 1 write · 0 delete
Secrets: None asked for
Install scripts: None found
Runs as: Node.js package

Tools by what they do 5

Read from the source code; the running server may list different tools.

Read 4 · Look things up without changing anything.

calculate_tariff_scenario
check_tariff_updates
dataset_info
search_hs_candidates

Write 1 · Create, change, send or run things.

watch_tariff_changes

Network hosts it talks to 7

content.govdelivery.com · found in code
github.com · found in code
glama.ai · found in code
hts.usitc.gov · found in code
opsloft.dev · found in code
rulings.cbp.gov · found in code
trade.gov · found in code

Tools (5)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

calculate_tariff_scenarioCalculate tariff scenarioread-only
Returns the HTS code's MFN/FTA base rate, ALL active chapter 99 rules (IEEPA/301/232 additional duties) matching the origin as verbatim text, and MPF/HMF fees. The LLM should walk the chapter-99 exception chains itself to stack the right duty layers, explain each step to the user, and always note this is an estimate.
check_tariff_updatesCheck tariff changes between revisionsread-only
Compares the current HTS snapshot with the previously fetched one. Call without codes to check the whole watchlist. Returns each change: code, column (general/special/other/additionalDuties), old → new value.
dataset_infoDataset inforead-only
Fetch date, source, license, row counts — use to check data freshness.
search_hs_candidatesSearch HTS code candidatesread-only
Returns top 8-10 digit HTS code candidates (with MFN/FTA rates and CBP CROSS ruling links) for a product description. Results are CANDIDATES for pre-broker screening, not a classification ruling. IMPORTANT: the HTS uses legal terminology, not trade names — BEFORE CALLING, rewrite the product description into HTS-style material + use nouns (e.g. 'pink kids backpack' → 'travel bags of man-made fibers'; 'water bottle' → 'vacuum flask' or 'bottle of plastics'). If you get 0 results, retry with 2-3 different phrasings.
watch_tariff_changesWatch HTS codes for tariff changes
Saves HTS codes (with optional origin) to a local watchlist. After each dataset refresh, call check_tariff_updates to see whether the rates on these codes changed. This is how you track 2025-2026 tariff volatility without manual re-checking.

Signals

Stars: 3
Forks: 0
Open issues: 0
Last commit: Sep 7, 2026 (1 month ago)
Last release: Sep 5, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.github.opsloft/tariff-resolver
Version: 1.1.0
Auth: No auth
Packages: npm tariff-resolver
License: MIT
Repository: github.com/opsloft/tariff-resolver
Website: opsloft.dev
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql

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Cite this page

Tariff Resolver MCP server. Agent Mart. https://agentmart.dev/connectors/opsloft-tariff-resolver (last updated 2026-10-24)