● healthy
model-context-protocol-mcp
US tariff API + MCP: HTS duty rates, Section 301 lists. Keys $19/mo; 50 free calls a day.
Category
model-context-protocol-mcp
Chains
base
Price
$0.0120 USDC / call
Quality grade
How grading works
C+
60.0 / 100
Availability
40.0 / 40
Endpoint responded (HTTP 200)
Payability
20.0 / 20
- ✓ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
Demand
0.0 / 40
0 distinct payers, 0 USDC transfers in the last 30 days
Owner verified
0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 21 h ago.
On-chain activity last read 2 d ago.
Availability and on-chain demand are both re-probed daily; the grade
updates automatically on the next pass.
How to call
cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://dutyfinch.cybermaxtools.com/x402/api/hts # expect HTTP 402 Payment Required (about 0.012 USDC/call)MCP endpoint
https://dutyfinch.cybermaxtools.com/mcp?via=mcp-registry/.well-known/x402.json
https://dutyfinch.cybermaxtools.com/.well-known/x402
Listed in
Directories this entry was found in.
mcp
x402