ZentisLabs sends account alerts by email. Webhook delivery is not available yet - until it is, integrations can check balances through the API.
When a product's remaining bandwidth runs low, so you can top up (or let auto-refill do it) before traffic stops.
When an invoice is issued for a purchase or renewal.
When one of your servers goes offline or reports an error.
Turn each alert on or off in your dashboard settings. Low-bandwidth and invoice emails are on for new accounts; switch on server alerts there too.
Poll the usage endpoint with your API key - every few minutes is plenty - and act when a balance drops below your own threshold.
curl https://api.zentislabs.com/api/v1/usage \ -H "X-API-Key: YOUR_API_KEY"{ "success": true, "products": { "light": { "totalGb": 0, "usedGb": 0, "remainingGb": 0 }, "basic": { "totalGb": 10, "usedGb": 3.5, "remainingGb": 6.5 }, "advanced": { "totalGb": 0, "usedGb": 0, "remainingGb": 0 }, "mobile": { "totalGb": 5, "usedGb": 3.75, "remainingGb": 1.25 }, "datacenter": { "totalGb": 3, "usedGb": 0, "remainingGb": 3 } }, "dataUsedMb": 7250, "dataLimitMb": 18000, "dataRemainingMb": 10750, "percentUsed": 40.28, "requestsCount": 0, "updatedAt": "2026-09-24T12:00:00.000Z"}Balances are refreshed at most every 30 seconds per account.
Push notifications to your own HTTPS endpoint are coming soon. If you need them for an integration now, contact support@zentislabs.com.