Connects Claude to 19 crypto futures calculators that return exact numbers instead of LLM estimates. You get PnL, liquidation prices, position sizing, funding costs, and carry trade analysis with formulas verified against 22 test vectors. Ask naturally and it routes to the right tool: "long BTC at $83k with 10x leverage, where's liquidation?" or "size my position for 1% risk with stop at $81k." Runs over streamable HTTP, so no local install needed. Free tier gives you 20 calls per day anonymous, 200 with an API key. Useful when you're building trading bots or agent pipelines where wrong math costs real money.
claude mcp add --transport http io.github.skalinin909-tradingcalc https://tradingcalc.io/api/mcp