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TariffsChart

by tariffschart.com · remote · no sign-in to list tools · v1.0.0 · published by com.tariffschart

US HTS duty lookup and import-duty review with official sources and explicit unresolved layers.

Changes · 1
CompareRegistry entry

2 tools: 1 change things and 1 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http tariffschart https://mcp.tariffschart.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnreview_import_duty

    The server marks "review_import_duty" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "review_import_duty" says "import": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

2 tools

Changes things 1Claude Code: ask
  • review_import_dutyReview an import duty stack with official sources, known subtotals, missing inputs and unresolved applicability.1 finding

    Why it is in this group

    • The name "review_import_duty" says "import": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "review_import_duty" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "review_import_duty" says "import": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Review an import duty stack with official sources, known subtotals, missing inputs and unresolved applicability. Provide the real USD customs value and entry date. Unknowns stay unresolved; user review states are scenario assumptions. Do not infer a final duty from a known subtotal.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 1Claude Code: allow
  • lookup_hts_base_rateLook up a fresh simple MFN general duty field from TariffsChart’s USITC HTS data.No findings

    Why it is in this group

    • The name "lookup_hts_base_rate" says "lookup": a word for reading.
    Description, as the server wrote it
    Look up a fresh simple MFN general duty field from TariffsChart’s USITC HTS data. Includes source revision, date and excluded layers. Base-only: never treat this as the final import tariff. Complex or stale rates may be unavailable; use review_import_duty for quantity-based duties.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http tariffschart https://mcp.tariffschart.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__tariffschart__lookup_hts_base_rate"
    ],
    "ask": [
      "mcp__tariffschart__review_import_duty"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as tariffschart. Review it before you use it.