If you're building crypto futures workflows and need exact liquidation, PnL, or funding numbers instead of LLM approximations, this gives you 19 regression-tested calculators normalized across Binance, Bybit, OKX, Hyperliquid, MEXC, KuCoin, and Aster. The MCP server exposes 23 tools including primitives like position sizing and liquidation price, plus workflows that answer questions like "is this position safe to open" or "what's my carry yield" in one call. Every formula is tested against 22 canonical vectors on deployment. You can plug it into Claude, Cursor, or VS Code via HTTP MCP, or call the REST API directly from trading bots. Free tier gives you 20 calls per day, email for a key to bump that to 200.
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