US import duty and HTS codes from the official USITC schedule, plus Section 301 China status. Free.
Streamable HTTP
https://gpt-dutyfinch.cybermaxtools.com/mcp?via=mcp-registryclaude mcp add --transport http dutyfinch-chatgpt https://gpt-dutyfinch.cybermaxtools.com/mcp?via=mcp-registryThis server publishes no installable package.