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CalcFleet
120+ tested calculators, each also a JSON API and MCP tool
4 followers
120+ tested calculators, each also a JSON API and MCP tool
4 followers
Most calculator sites are 90% ads and hide where the number came from. CalcFleet is the opposite: 121 calculators for money, home, fitness and AI economics, each a tested pure function — never an LLM guess — with sourced formulas and no signup. What stands out: every calculator is also a free MCP tool and a JSON API, so your apps and AI agents call the same math you do. The AI-economics tools (self-host vs API, RAG cost, agent cost per successful task) use dated snapshots of official prices.
Finally a calculator site that doesn't drown you in ads and actually shows the formula. The MCP and JSON API angle is clever, makes it easy to wire the same numbers into my own tools without rebuilding anything.
how do the dated price snapshots get updated, and how do you handle the lag when a vendor like OpenAI changes pricing overnight