Checkmk

Receive Checkmk host and service alerts via webhook notifications.

InboundMonitoring & Observability

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Quick Setup

Copy Webhook URL

Go to your Alert24 dashboard and copy the webhook URL for Checkmk.

Configure Checkmk

Add the webhook URL in your Checkmk settings.

Auto-Detected

Alert24 auto-detects Checkmk payloads and maps them to incidents.

Step-by-Step Setup Instructions

Checkmk Webhook Setup

1.In Checkmk, go to Setup → Events → Notifications

2.Add a new notification rule

3.Set Notification Method to Webhooks or use a custom script

4.Configure the webhook URL to the URL shown above

5.Set the notification conditions (hosts, services, states)

6.Save and activate changes

Example Webhook Payload

This is a sample payload that Checkmk sends to Alert24 when an alert fires.

{
  "host": "web-server-01",
  "service": "CPU load",
  "state": "CRIT",
  "output": "CPU load is 95% - above threshold of 90%",
  "timestamp": "2024-01-15T10:30:00Z"
}

How Alert24 Maps Checkmk Data

Status Field

state

Message Field

output

Auto-Create Incidents

Yes

Auto-Resolve Incidents

Yes

Status Mapping

Alert24 Status	Checkmk Values
operational	`OKUP`
degraded	`WARN`
down	`CRITDOWN`

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Free plan includes 5 monitors, 1 status page, and incident management. No credit card required.

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