Notifications / Send alerts to a webhook

Send alerts to a webhook

Post a JSON payload to your own endpoint on failure, recovery and reminder.

The Webhook type calls a URL of your choice. Use it to open a ticket, page someone through your incident tool, or feed your own automation.

The Create notification form for a Webhook — A webhook called with POST.

Field	Meaning
Url	The endpoint to call.
Method	`POST` sends the JSON payload below. `GET` calls the URL without a body.

Payload

With POST, the body is a JSON object:

JSON

{
	"name": "Payments API",
	"status": "FAILURE",
	"event": "FAILURE",
	"reminderIndex": 0,
	"downtimeSeconds": null,
	"message": "HTTP check failed: Request: unexpected HTTP status 503",
	"runAt": "2026-10-17T18:48:40.451915Z"
}

Field	Meaning
`name`	The name of the monitor.
`status`	The status of the check: `SUCCESS`, `WARNING` or `FAILURE`.
`event`	`FAILURE` when the monitor goes down, `RECOVERY` when it comes back, `REMINDER` for a reminder. A test sends `NONE`.
`reminderIndex`	The number of the reminder, `0` otherwise.
`downtimeSeconds`	On `RECOVERY`, how long the monitor was down. `null` otherwise.
`message`	The message of the check.
`runAt`	When the check ran, in UTC (ISO-8601).

A recovery looks like this:

JSON

{
	"name": "Payments API",
	"status": "SUCCESS",
	"event": "RECOVERY",
	"reminderIndex": 0,
	"downtimeSeconds": 58,
	"message": "1/1 Request: HTTP 200 in 312 ms",
	"runAt": "2026-10-17T18:49:38.120584Z"
}

Choose Test notification to receive a sample with "name": "Test" and "event": "NONE".