Dutyfinch MCP

v1.1.0 changelog · 2

dev.workers.cybermax-tools.cybermax/dutyfinch

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

transport:streamable-http tools:4

Target client

run in your project directory

claude mcp add --transport http dutyfinch https://dutyfinch.cybermaxtools.com/mcp?via=mcp-registry

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs


                lookup_hts_code

Read-only

lookup hts code


                search_hts

Read-only

search hts


                section301_lists

section301 lists


                china_deal_status

china deal status

All 4 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.