US import duty calculator MCP with cited rates. Free hts_search and hts_lookup; paid calculate_duty.
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Paid ($0.02/call, needs API key). Full US duty stack for an import: ordinary/FTA duty, Section 232, Section 301 (China lists + 2026 forced-labor action), Section 338, plus MPF and HMF fees. Every line cites its legal source and effective date. Informational only; not customs brokerage or a binding classification.
8- or 10-digit HTSUS code
Country of origin, ISO alpha-2 (CN, VN, DE...)
Customs (transaction) value in USD
Unit of quantity, e.g. kg, liters, doz, number
Quantity for specific (per-unit) rates
Apply FTA special rate if eligible (goods must qualify as originating)
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http dutycite https://dutycite.com/mcp
Paid ($0.02/call, needs API key). Full US duty stack for an import: ordinary/FTA duty, Section 232, Section 301 (China lists + 2026 forced-labor action), Section 338, plus MPF and HMF fees. Every line cites its legal source and effective date. Informational only; not customs brokerage or a binding classification.
| Argument | Type | Description |
|---|---|---|
| hts* | string | 8- or 10-digit HTSUS code |
| mode | string | |
| unit | string | Unit of quantity, e.g. kg, liters, doz, number |
| origin* | string | Country of origin, ISO alpha-2 (CN, VN, DE...) |
| options | object | |
| quantity | number | Quantity for specific (per-unit) rates |
| entry_type | string | |
| customs_value* | number | Customs (transaction) value in USD |
| claim_preference | boolean | Apply FTA special rate if eligible (goods must qualify as originating) |
{
"type": "object",
"required": [
"hts",
"origin",
"customs_value"
],
"properties": {
"hts": {
"type": "string",
"description": "8- or 10-digit HTSUS code"
},
"mode": {
"enum": [
"ocean",
"air",
"truck",
"rail",
"mail",
"other"
],
"type": "string",
"default": "ocean"
},
"unit": {
"type": "string",
"description": "Unit of quantity, e.g. kg, liters, doz, number"
},
"origin": {
"type": "string",
"description": "Country of origin, ISO alpha-2 (CN, VN, DE...)"
},
"options": {
"type": "object",
"properties": {
"auto_part": {
"type": "boolean"
},
"uk_melted": {
"type": "boolean"
},
"metal_weight_pct": {
"type": "number"
},
"mhd_vehicle_part": {
"type": "boolean"
}
}
},
"quantity": {
"type": "number",
"description": "Quantity for specific (per-unit) rates"
},
"entry_type": {
"enum": [
"formal",
"informal",
"auto"
],
"type": "string",
"default": "auto"
},
"customs_value": {
"type": "number",
"description": "Customs (transaction) value in USD"
},
"claim_preference": {
"type": "boolean",
"description": "Apply FTA special rate if eligible (goods must qualify as originating)"
}
}
}Free. Get the description, units, and general / special (FTA) / column 2 rates for an HTSUS code (4-10 digits).
| Argument | Type | Description |
|---|---|---|
| code* | string | HTSUS code, e.g. 6109.10.00.12 |
{
"type": "object",
"required": [
"code"
],
"properties": {
"code": {
"type": "string",
"description": "HTSUS code, e.g. 6109.10.00.12"
}
}
}Free. Search the current US Harmonized Tariff Schedule by keyword or code prefix. Returns 8/10-digit codes with descriptions and base (MFN) duty rates.
| Argument | Type | Description |
|---|---|---|
| limit | integer | |
| query* | string | Keywords (e.g. "cotton t-shirts men") or code prefix (e.g. "6109") |
{
"type": "object",
"required": [
"query"
],
"properties": {
"limit": {
"type": "integer",
"default": 10,
"maximum": 50,
"minimum": 1
},
"query": {
"type": "string",
"description": "Keywords (e.g. \"cotton t-shirts men\") or code prefix (e.g. \"6109\")"
}
}
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 13, 2026.