{"success":true,"data":{"service":"Cote API","description":"Danube water level and temperature data (headless).","version":"1.0.0","endpoints":["/api/ports","/api/ports/{id}","/api/measurements","/api/measurements/latest","/api/measurements/range","/api/measurements/extremes"],"auth":"X-API-Key header or ?api_key= query parameter"}}