{"calculator":"hydration","name":"Hydration Calculator","description":"Daily water needs based on weight and temperature","api_available":true,"endpoint":"/api/calc/hydration","method":"POST","content_type":"application/json","inputs":{"weight":{"type":"number","label":{"en":"Weight (kg)","fr":"Poids (kg)","de":"Gewicht (kg)","es":"Peso (kg)"},"required":true,"defaultValue":70},"activityLevel":{"type":"select","label":{"en":"Activity Level","fr":"Niveau d'Activité","de":"Aktivitätsniveau","es":"Nivel de Actividad"},"options":[{"value":"low","label":{"en":"Low","fr":"Faible","de":"Niedrig","es":"Bajo"}},{"value":"moderate","label":{"en":"Moderate","fr":"Modéré","de":"Mäßig","es":"Moderado"}},{"value":"high","label":{"en":"High","fr":"Élevé","de":"Hoch","es":"Alto"}}],"defaultValue":"moderate"},"temperature":{"type":"number","label":{"en":"Temperature (°C)","fr":"Température (°C)","de":"Temperatur (°C)","es":"Temperatura (°C)"},"required":false,"defaultValue":20}},"outputs":{"dailyWater":{"type":"volume","label":{"en":"Daily Water Intake","fr":"Apport en Eau Quotidien","de":"Tägliche Wasseraufnahme","es":"Ingesta Diaria de Agua"}}},"validation_rules":{"weight":{"required":true,"type":"number"},"activityLevel":{"type":"select"},"temperature":{"type":"number"}},"_links":{"calculate":"/api/calc/hydration","methodology":"/en/methodology#hydration","openapi":"/api/openapi.json"}}