Every US duty rate and China tariff, one call

curl -s "https://dutyfinch.cybermaxtools.com/api/hts?code=8516.60.40"

# with a paid key
curl -s "https://dutyfinch.cybermaxtools.com/api/hts?code=8516.60.40" -H "x-api-key: YOUR_KEY"

const r = await fetch("https://dutyfinch.cybermaxtools.com/api/hts?code=8516.60.40", {
  headers: { "x-api-key": process.env.DUTYFINCH_KEY ?? "" } // optional: free tier without a key
});
console.log(await r.json());

import requests

r = requests.get("https://dutyfinch.cybermaxtools.com/api/hts?code=8516.60.40",
                 headers={"x-api-key": "YOUR_KEY"})  # optional: free tier without a key
print(r.json())

{ "mcpServers": { "dutyfinch": { "type": "http", "url": "https://dutyfinch.cybermaxtools.com/mcp" } } }

# Claude Code
claude mcp add --transport http dutyfinch https://dutyfinch.cybermaxtools.com/mcp