{"service":"GeoIP API Server","version":"1.0.0","endpoints":{"health":"/health","lookupIP":"/lookup/:ip (requires API key)","autoLookup":"/lookup (requires API key)"},"authentication":{"required":"API key required for lookup endpoints","methods":["X-API-Key header","Authorization: Bearer <key>","api_key query parameter"]},"documentation":{"lookupExample":"/lookup/8.8.8.8?api_key=your-api-key","healthCheck":"/health"}}