Re:Show HN: Trading calculators whose answers can be checked...
by SKalinin on Wednesday November 11, 2026 @01:25PM
(#50456710)
I started TradingCalc because of friend of mine. He was trying to trade via AI chat (wouldn't open which LLЬ exactly for a reason). The problem has been to verify the numbers and source of truth. I didn't have the answer for him either. That's how TradingCalc has been born.
The very first batch has included few perp calculators. Now I already have 60 canonical test vectors and each one has the math within the source code. As well as an independent Python reference to demonstrate the same values or the tests fail.
The engine has 100 MCP tools for agents and bots and MCP result has an ECDSA P-256 signature. You can check it where it came from and wasn't changed on the way. Every formula is published and verified for the basic calculatore. UI calculators are not signed, check MCP results in this regard.
I would happy to discuss all aspects of the TradingCalc, good or bad ones, doesn't matter. Both valuable. TradingCalc, https://tradingcalc.io.
Thanks, Sergey.
The very first batch has included few perp calculators. Now I already have 60 canonical test vectors and each one has the math within the source code. As well as an independent Python reference to demonstrate the same values or the tests fail.
The engine has 100 MCP tools for agents and bots and MCP result has an ECDSA P-256 signature. You can check it where it came from and wasn't changed on the way. Every formula is published and verified for the basic calculatore. UI calculators are not signed, check MCP results in this regard.
I would happy to discuss all aspects of the TradingCalc, good or bad ones, doesn't matter. Both valuable. TradingCalc, https://tradingcalc.io. Thanks, Sergey.