# prometheus/prometheus

The Prometheus monitoring system and time series database.

Repository: https://github.com/prometheus/prometheus
Canonical: https://ross.abutalabs.com/products/prometheus
Homepage: https://prometheus.io/
Language: Go
License: Apache-2.0
License Family: permissive
Topics: monitoring, metrics, alerting, graphing, time-series, prometheus, hacktoberfest
Last push: 2026-08-26T23:07:51+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 98, longevity 100
- inputs: {"age_days": 5030, "days_push": 7, "days_rel": 15, "gap_med": 14, "n_releases_24m": 40}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 65839, forks 10800 (observed 2026-08-28T04:12:19.328026+00:00)

## What it is
Prometheus is an open-source systems and service monitoring toolkit and time series database, originally built at SoundCloud and now a CNCF graduated project. It collects metrics from configured targets via HTTP pull, stores them in a multi-dimensional data model, evaluates PromQL queries, and triggers alerts through Alertmanager.

## Use cases
- monitor my kubernetes cluster metrics
- set up alerting when error rates spike
- query and graph time series metrics with PromQL
- scrape metrics from my applications and services
- collect system and database metrics via exporters
- build dashboards from infrastructure metrics

## When to choose
- you need pull-based metrics collection with a powerful dimensional query language
- you run cloud-native or Kubernetes workloads and want service discovery
- you want a self-contained monitoring server without distributed storage dependencies
- you need mature alerting rules integrated with Alertmanager

## When to avoid
- you need long-term durable storage across clusters without external remote storage
- you require per-request tracing or log aggregation rather than numeric metrics
- you want push-based event collection without a pushgateway intermediary
- you need exact accounting or billing-grade metrics

## Facets
- artifact type: service
- maturity: stable
- function: monitoring, alerting, database, search-engine, data-visualization
- domain: monitoring, time-series, cloud-computing, infrastructure-as-code
- platform: windows, go, self-hosted, cross-platform
- tags: promql, time-series-database, metrics-collection, pull-model, service-discovery, cncf, exporters, federation, devops, containers, linux, macos, docker, kubernetes

## Member repositories
- prometheus/prometheus (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:19.328026+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 2026-08-29T16:17:23.851591+00:00, confidence not recorded.
  - readme: https://github.com/prometheus/prometheus (fetched 2026-08-28T04:12:19.328026+00:00, sha 0155ef8c75dd)
  - homepage: https://prometheus.io/ (fetched 2026-08-28T17:53:57.136889+00:00, sha 90ad2d078025)
  - site_page: https://prometheus.io/docs/introduction/overview/ (fetched 2026-08-28T17:53:57.145236+00:00, sha c696bb6218d5)
  - site_page: https://prometheus.io/docs/prometheus/latest/getting_started/ (fetched 2026-08-28T17:53:57.147399+00:00, sha 082691cfcbb1)
  - site_page: https://prometheus.io/docs/concepts/data_model/ (fetched 2026-08-28T17:53:57.149078+00:00, sha 83633208ef16)
  - site_page: https://prometheus.io/docs/prometheus/latest/querying/basics/ (fetched 2026-08-28T17:53:57.150834+00:00, sha 89b06de5cf54)
  - site_page: https://prometheus.io/docs/alerting/latest/overview/ (fetched 2026-08-28T17:53:57.152936+00:00, sha 9467da92495b)
  - site_page: https://prometheus.io/docs/prometheus/latest/configuration/configuration/ (fetched 2026-08-28T17:53:57.154579+00:00, sha e4574880308e)
  - site_page: https://prometheus.io/docs/instrumenting/clientlibs/ (fetched 2026-08-28T17:53:57.158703+00:00, sha f9ef0f663e3b)
  - site_page: https://prometheus.io/docs/instrumenting/exporters/ (fetched 2026-08-28T17:53:57.160143+00:00, sha 3bc93769567c)
- Data as of 2026-08-30T08:39:29.467469+00:00.