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mcp/harbor
Verified official

Stupidly Clever MCP

v1.0.0

com.stupidlyclever.www/calculators

140+ calculators and data tools — finance, health, science, global comparisons and more.

transport:streamable-http

Target client

run in your project directory 

claude mcp add --transport http calculators https://api.stupidlyclever.com/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.