Prometheus
Collect time-series metrics, query them with PromQL and trigger monitoring alerts.
What’s included for free?
The official source provides an ongoing self-hosted or community route with no provider metering; you supply and secure servers, storage, databases, email and backups.
Where it runs: Self-hosted
Provider information ↗Checked 2026-10-22
Before you use it
Apache-2.0. Storage, alert delivery, exporters and deployment infrastructure have separate terms.
Provider terms can change. Check current pricing and usage rights before starting a project.