tariffmonitor-mcp
MCP server for the Tariff Exposure Monitor — a live US import tariff calculator covering 19,856 HTS codes.
Give Claude (or any MCP-compatible AI) the ability to look up real stacked tariff rates and project the November 10, 2026 cliff impact on any product.
What it does
Two tools:
| Tool | What it does | |---|---| | lookup_hts_code | Search 19,856 HTS codes by description or numeric prefix | | calculate_tariff | Returns stacked rate (base + Section 301 + IEEPA + reciprocal) + Nov 10 cliff projection. Optional: annual import volume → dollar impact |
Example exchange: ``` You: What's the tariff on athletic footwear from China, and how does the cliff change my costs if I import $800k/year?
Claude: [uses calculate_tariff with hts_code="6404.11", origin_country="CN", annual_import_value_usd=800000] HTS 6404110000 — Footwear with outer soles of rubber/plastics... Rate stack: Base rate (MFN): +20.00% Section 301 (List 4A): +7.50% IEEPA emergency tariff: +145.00% Total current rate: 172.50% Nov 10, 2026 cliff: 195.00% (+22.50pp jump)
Dollar impact at $800,000/yr import value: Current annual duties: $1,380,000 Additional after Nov 10 cliff: $180,000/yr ```
Install (Claude Desktop)
Add to your claude_desktop_config.json:
{
"mcpServers": {
"tariffmonitor": {
"command": "npx",
"args": ["-y", "tariffmonitor-mcp"]
}
}
}Restart Claude Desktop. The lookup_hts_code and calculate_tariff tools appear automatically.
Install (Cursor / other MCP clients)
{
"mcp": {
"servers": {
"tariffmonitor": {
"command": "npx",
"args": ["-y", "tariffmonitor-mcp"]
}
}
}
}No API key required
The tool calls the free public API at adcreator-ai.com. No signup, no rate limits for reasonable use.
Related
- Free tariff calculator — browser version
- Free sample pack — 5 HTS codes with full cliff math PDF
- Tariff Survival Kit ($39) — 67 HTS codes pre-computed + sourcing alternatives + Nov 10 action checklist
Affiliate program
Earn 35% on every sale. Sign up here.
Built by Dale Weaver / 0xpi.
