{"message":"IoT Multi-Application Data API","version":"2.0.0","supported_apps":["oxocard-sensorvalues","m5stack-watering","m5coreS3-watering"],"endpoints":{"POST /api/telemetry":"Submit sensor data (requires app_site parameter)","GET /api/data":"Retrieve Oxocard measurements (limit, device_id params)","GET /api/watering-data":"Retrieve M5Stack watering data (device_id param)","GET /api/stats":"Get Oxocard statistics (device_id param)","GET /api/watering-stats":"Get M5Stack watering statistics (device_id param)","GET /api/export/csv":"Export Oxocard data as CSV (days param)","GET /api/export/watering-csv":"Export M5Stack watering data as CSV (days param)","GET /api/devices":"List all devices (app_site param)","GET /health":"Health check"}}