{"service":"SmartRanking Calendar API","version":"1.0.0","endpoints":{"GET /ics":"Generate and download .ics file (Apple/Yandex/Outlook)","GET /google":"302 redirect to Google Calendar create event page","GET /links":"JSON with both Google URL and .ics download URL","GET /health":"Health check","GET /docs/integration":"Integration guide for GetCourse engineers"},"docs":"https://cal.smartranking.ru/docs/integration"}