# Checkmk/checkmk

Checkmk - Best-in-class infrastructure & application monitoring

Repository: https://github.com/Checkmk/checkmk
Canonical: https://ross.abutalabs.com/products/checkmk
Homepage: https://checkmk.com/
Language: Python
License: GPL-2.0
License Family: copyleft
Topics: monitoring
Last push: 2026-08-26T20:00:07+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 2751, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2349, forks 555 (observed 2026-08-28T04:06:40.167133+00:00)

## What it is
Checkmk is a comprehensive IT infrastructure and application monitoring platform covering servers, networks, containers, and cloud environments with agent-based and agentless monitoring. The open-source Community edition includes the monitoring engine, web UI, and hundreds of plugins, with commercial editions adding distributed monitoring, cloud-native observability, and multi-tenancy.

## Use cases
- monitor servers and network devices
- set up infrastructure monitoring for a data center
- monitor kubernetes and cloud environments
- get alerts when a host or service goes down
- monitor snmp devices like switches and ups
- self-hosted alternative to nagios or zabbix
- track cpu memory and disk usage across hosts
- monitor hybrid on-prem and cloud infrastructure

## When to choose
- you need scalable monitoring of physical, virtual, containerized, and cloud infrastructure from one platform
- you want thousands of out-of-the-box check plugins for hardware, network devices, and applications
- you need a mature, actively maintained open-source monitoring solution with an optional enterprise upgrade path
- you want automated host discovery, dashboards, and alerting with low resource consumption

## When to avoid
- you only need lightweight metrics collection and prefer assembling your own stack with Prometheus and Grafana
- you need a fully SaaS-hosted solution without self-hosting (though Checkmk Cloud exists commercially)
- your environment is very small and a simple uptime checker would suffice
- you require a permissive license - the core is GPL-2.0 and advanced features are commercial

## Facets
- artifact type: application
- maturity: stable
- function: monitoring, alerting, tracing, analytics, plugin-system, self-hosted
- domain: monitoring, cloud-computing, infrastructure-as-code, networking, self-hosted
- platform: python, self-hosted, cloud
- tags: observability, infrastructure-monitoring, opentelemetry, agent-based-monitoring, snmp, kubernetes-monitoring, distributed-monitoring, open-core, devops, containers, linux, docker, web-server

## Member repositories
- Checkmk/checkmk (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:40.167133+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:36:56.939978+00:00, confidence not recorded.
  - readme: https://github.com/Checkmk/checkmk (fetched 2026-08-28T04:06:40.167133+00:00, sha 1159329e94e5)
  - homepage: https://checkmk.com/ (fetched 2026-08-29T10:17:47.579496+00:00, sha 908c5159bb5c)
  - site_page: https://checkmk.com/company/about-us (fetched 2026-08-29T10:17:47.588644+00:00, sha dae39a35ddb7)
  - site_page: https://checkmk.com/product/features/monitoring-platform (fetched 2026-08-29T10:17:47.590452+00:00, sha 6b5a74d4f649)
  - site_page: https://docs.checkmk.com/latest/en (fetched 2026-08-29T10:17:47.604068+00:00, sha 57bb048e6399)
  - site_page: https://checkmk.com/product/integrations (fetched 2026-08-29T10:17:47.592071+00:00, sha ef97deee046f)
  - site_page: https://checkmk.com/pricing (fetched 2026-08-29T10:17:47.594446+00:00, sha b4c6ca5bad9a)
  - site_page: https://checkmk.com/integrations (fetched 2026-08-29T10:17:47.596692+00:00, sha f83ac01beb01)
  - site_page: https://checkmk.com/werks (fetched 2026-08-29T10:17:47.600594+00:00, sha c15b027c562b)
- Data as of 2026-08-30T08:39:29.467469+00:00.