{"authentication":"API Key required (X-API-Key header or api_key query parameter)","endpoints":{"/api/health":{"description":"Health check endpoint","method":"GET","requires_auth":false},"/api/track/<tracking_number>":{"description":"Track a package by tracking number","example":"/api/track/S20251013000427599","headers":{"X-API-Key":"your_api_key"},"method":"GET","requires_auth":true}},"main_api":"https://ptracking.sillydev.co.uk","note":"This is a replica server. Billing is handled by the main API server.","service":"Replica Package Tracking API","supported_services":["XYS Logistics","SC Express","Logistics Express","HSD Express"],"version":"1.0"}