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Dutyfinch

MCP serverVerified domain · cybermax.cybermax-tools.workers.devRemote● LiveFree to try

US tariff API + MCP: HTS duty rates, Section 301 lists. Keys $19/mo; 50 free calls a day.

Install

Remote server: your requests and data go to dutyfinch.cybermaxtools.com. Claude Code: claude mcp add --transport http dutyfinch https://dutyfinch.cybermaxtools.com/mcp?via=mcp-registry · Claude app: Settings → Connectors → Add custom connector.

What it can do

The tools this server listed when we connected to it, in its own words.

  • lookup_hts_code — US tariff lookup for one HTS code (4, 6, 8 or 10 digits): description, general/special/column 2 duty rates, Section 301 China list status wi
  • search_hts — Find US HTS codes from product words (e.g. "air fryer", "wooden toys") or a code prefix. Returns codes with description, general rate and Se
  • estimate_duty — Duty estimate for one HTS code: customs value in USD and origin country in; the HTS general rate applied (ad valorem + specific with quantit
  • section301_lists — All Section 301 China tariff headings (lists 1, 2, 3, 4A, 4B, 2024 increases, exclusions) with rates, dates and code counts.
  • china_deal_status — Status of the 2026 US–China tariff reduction list (pending / notice_published / published) and, with code, whether that HTS code is on it.

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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