A Checkmk special agent plus check plugins to monitor GitLab through its REST API (v4) — both self-hosted (CE/EE) and GitLab.com (SaaS) — built in the style of the bundled Jenkins special agent. Tested layout for Checkmk 2.5.0, GitLab EE 19.x, and tested successfully against a GitLab.com free account. Some services are admin- or EE-only and therefore self-hosted only — see Compatibility.