Prometheus by prometheus
The Prometheus monitoring system and time series database.
About Prometheus
From the project's README at github.com/prometheus/prometheus. Lightly cleaned for readability; for the full source see the upstream repo.
Visit prometheus.io for the full documentation, examples and guides.
[](https://github.com/prometheus/prometheus/actions/workflows/ci.yml) [][quay] [][hub] [](https://goreportcard.com/report/github.com/prometheus/prometheus) [](https://bestpractices.coreinfrastructure.org/projects/486) [](https://github.com/prometheus/prometheus/actions/workflows/govulncheck.yml) [](https://securityscorecards.dev/viewer/?uri=github.com/prometheus/prometheus) [](https://clo
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 64k | github.com/prometheus/prometheus |
| GitHub forks | 10k | github.com/prometheus/prometheus |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 13.5 years | since Nov 2012 |
| Last commit | 3 days ago | May 4, 2026 |
| Releases shipped | 366 | last: 10 days ago |
| Security policy | SECURITY.md | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Security advisories
CVE-2021-29622. What people say on Hacker News
- Monitoring Your App Without Running Your Own Prometheus Stack
- Show HN: Valkey-native semantic cache with OTel and Prometheus built in
- Show HN: Llmtop – Htop for LLM Inference Clusters (vLLM, SGLang, Ollama, llama)
- Show HN: Natural language queries for Prometheus Kafka metrics (StreamLens)
- Show HN: SLOK – SLO composition with traffic-weighted service chains in K8s
Replaces these paid SaaS
Prometheus is one of the open-source alternatives to:
Ready to self-host Prometheus?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
Similar open-source projects
Projects in our directory that replace the same SaaS or share topics with Prometheus.