{"ok":true,"tool":"Water Intake Calculator","operation":"calculate-water-intake","description":"Estimate daily water intake from weight, activity, and climate.","method":"POST","endpoint":"/api/water-intake-calculator","webUrl":"https://ultraquick.tools/tools/water-intake-calculator","parameters":{"type":"object","properties":{"weight":{"type":"number","description":"Body weight"},"unit":{"type":"string","enum":["metric","imperial"],"description":"metric uses kg; imperial uses lb (default metric)"},"activityMinutes":{"type":"number","description":"Daily exercise minutes (default 0)"},"climate":{"type":"string","enum":["temperate","hot","cold"],"description":"Climate adjustment (default temperate)"}},"required":["weight"]},"response":{"type":"object","properties":{"milliliters":{"type":"number"},"liters":{"type":"number"},"ounces":{"type":"number"},"cups":{"type":"number"}}},"example":{"request":{"weight":70,"activityMinutes":30},"response_shape":{"type":"object","properties":{"milliliters":{"type":"number"},"liters":{"type":"number"},"ounces":{"type":"number"},"cups":{"type":"number"}}}},"howToCall":"POST a JSON body to https://ultraquick.tools/api/water-intake-calculator. Returns {\"ok\":true,\"result\":{...}} on success or {\"ok\":false,\"error\":\"...\"} on failure. No auth, CORS-enabled.","parametersSummary":"  weight (number, required) — Body weight\n  unit (string, optional, one of: metric|imperial) — metric uses kg; imperial uses lb (default metric)\n  activityMinutes (number, optional) — Daily exercise minutes (default 0)\n  climate (string, optional, one of: temperate|hot|cold) — Climate adjustment (default temperate)","curlExample":"curl -X POST https://ultraquick.tools/api/water-intake-calculator -H \"Content-Type: application/json\" -d '{\"weight\":70,\"activityMinutes\":30}'"}