io.github.cyanheads/usitc-tariffs-mcp-server

io.github.cyanheads/usitc-tariffs-mcp-servercyanheadsstreamable-httpv0.1.2Scanned 1 hour ago

Search USITC tariff schedules, inspect heading trees, and look up published duty rates.

6 tools: 3 change things and 3 only read.

Reads private data · 0
Reads text others write · 6
Can send data out · 0
3 findings

Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

6 tools

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

usitc_check_additional_dutiesFind Chapter 99 candidate headings and source references for an exact eight- or ten-digit commodity number.Reads text others write1 finding
Why it is in this group
- The description's first verb is "find": a word for reading.
- The input takes a statement or command to run (input.code), which can change anything it can reach.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Findings
- Warn
  The server marks "usitc_check_additional_duties" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":true}; The description's first verb is "find": a word for reading.
  What this check looks for
Description, as the server wrote it
Find Chapter 99 candidate headings and source references for an exact eight- or ten-digit commodity number. Coverage is partial and empty candidates never establish clearance. Use candidates, evidence with a returned candidateCode, or unmapped views; follow returned noteId and noteCursor for complete source passages. Country comparisons retain unknown and different-country evidence. No applicability, current legal status, exclusions, stacking or combined duties are determined.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true
usitc_get_headingInspect a four-, six- or eight-digit HTS classification and its complete indented descendants, including unnamed superior rows.Reads text others write1 finding
Why it is in this group
- The name "usitc_get_heading" says "get": a word for reading.
- The input takes a statement or command to run (input.code), which can change anything it can reach.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Findings
- Warn
  The server marks "usitc_get_heading" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":true}; The name "usitc_get_heading" says "get": a word for reading.
  What this check looks for
Description, as the server wrote it
Inspect a four-, six- or eight-digit HTS classification and its complete indented descendants, including unnamed superior rows. Published section titles are retained separately in sections, outside legal ancestry. Ancestry is built from the whole containing heading before filtering. Each parent and inherited-rate source has an exact nodeId follow-up. Chapters 98 and 99 preserve published forest roots without inventing four-digit records.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true
usitc_lookup_duty_rateRetrieve an eight-digit rate line or exact ten-digit statistical number with all published General, Special and Column 2 cells.Reads text others write1 finding
Why it is in this group
- The name "usitc_lookup_duty_rate" says "lookup": a word for reading.
- The input takes a statement or command to run (input.code), which can change anything it can reach.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Findings
- Warn
  The server marks "usitc_lookup_duty_rate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":true}; The name "usitc_lookup_duty_rate" says "lookup": a word for reading.
  What this check looks for
Description, as the server wrote it
Retrieve an eight-digit rate line or exact ten-digit statistical number with all published General, Special and Column 2 cells. An explicit eight-digit row takes precedence; an absent one resolves only through a unique ten-digit source row, retaining its identity. Multiple suffixes stay unresolved. Blank statistical cells inherit only from the matching eight-digit legal ancestor. With countryCode, report edition-matched General Note 3(b) listing; Special-program membership stays unknown. Neither comparison establishes qualification or selects a column. Follow usitc_check_additional_duties for partial Chapter 99 research.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true

Only reads 3Looks things up and changes nothing.Show 3 read-only tools

usitc_browse_chapterBrowse numbered headings with complete distinct eight-digit rate-line relationships and independent ten-digit statistical counts.Reads text others writeNo findings
Why it is in this group
- The name "usitc_browse_chapter" says "browse": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- untrusted-inputThe name "usitc_browse_chapter" says "browse": it reads web pages, which anyone can write.
- untrusted-inputThe description's first sentence says "browse": it reads web pages, which anyone can write.
Description, as the server wrote it
Browse numbered headings with complete distinct eight-digit rate-line relationships and independent ten-digit statistical counts. A unique combined ten-digit source row can establish an absent eight-digit relationship. Published subchapter titles group following headings when present. Chapters 98 and 99 expose actual published entries without synthetic four-digit headings; grouping is unavailable without sourced markers. Reserved chapters can return a successful empty collection.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true
usitc_list_referenceList accepted identifier formats, edition-pinned Special Program Indicators, chapter/section navigation labels, quantity units or published release metadata.Reads text others writeNo findings
Why it is in this group
- The name "usitc_list_reference" says "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
List accepted identifier formats, edition-pinned Special Program Indicators, chapter/section navigation labels, quantity units or published release metadata. Program names are decoded separately from country membership, which remains unknown without independently verified lists. Release records identify published editions but do not enable historical tariff lookup. Follow nextCursor for all entries.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- openWorldHint: true
usitc_search_htsSearch published USITC descriptions or complete HTS code prefixes in source order.Reads text others writeNo findings
Why it is in this group
- The name "usitc_search_hts" says "search": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Search published USITC descriptions or complete HTS code prefixes in source order. Matches are flat published rows with unresolved rates; call usitc_get_heading for legal ancestry and usitc_lookup_duty_rate for exact base rate columns. Follow nextCursor with identical arguments for all remaining matches.
Annotations the server declares
- readOnlyHint: true
- 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.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write6: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; usitc_browse_chapter
usitc_check_additional_duties
usitc_get_heading
usitc_list_reference
usitc_lookup_duty_rate
usitc_search_hts
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

3 warn

Warnusitc_get_heading
The server marks "usitc_get_heading" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":true}; The name "usitc_get_heading" says "get": a word for reading.
What this check looks for
Warnusitc_lookup_duty_rate
The server marks "usitc_lookup_duty_rate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":true}; The name "usitc_lookup_duty_rate" says "lookup": a word for reading.
What this check looks for
Warnusitc_check_additional_duties
The server marks "usitc_check_additional_duties" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":true}; The description's first verb is "find": a word for reading.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.1.2. Values in angle brackets are yours to fill in.

claude mcp add --transport http usitc-tariffs https://usitc-tariffs.caseyjhand.com/mcp

claude mcp add --transport http usitc-tariffs https://usitc-tariffs.caseyjhand.com/mcp

Run in a terminal.

Claude Code permissions

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

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__usitc-tariffs__usitc_search_hts",
      "mcp__usitc-tariffs__usitc_browse_chapter",
      "mcp__usitc-tariffs__usitc_list_reference"
    ],
    "ask": [
      "mcp__usitc-tariffs__usitc_get_heading",
      "mcp__usitc-tariffs__usitc_lookup_duty_rate",
      "mcp__usitc-tariffs__usitc_check_additional_duties"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as usitc-tariffs. Review it before you use it.

Capability tags behind 6 rules

mcp__usitc-tariffs__usitc_search_hts untrusted-input
mcp__usitc-tariffs__usitc_get_heading untrusted-input
mcp__usitc-tariffs__usitc_browse_chapter untrusted-input
mcp__usitc-tariffs__usitc_lookup_duty_rate untrusted-input
mcp__usitc-tariffs__usitc_check_additional_duties untrusted-input
mcp__usitc-tariffs__usitc_list_reference untrusted-input

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.github.cyanheads/usitc-tariffs-mcp-server/verify?hash=7cab1edf0f9ecb7668670c966e772dda64a4128230fac20d57ecb63a5608f2dc" | jq -e '.changed == false'

Pinned hash 7cab1edf0f9e, from Oct 26, 2026, 04:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.cyanheads/usitc-tariffs-mcp-server/changes.xml

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Badge

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Source: MCP Registry · repository. Synced Oct 26, 2026, 04:17 UTC.