# Prometheus (software) | ![img \|150](https://upload.wikimedia.org/wikipedia/commons/thumb/3/38/Prometheus_software_logo.svg/320px-Prometheus_software_logo.svg.png) | Prometheus is a free software application used for event monitoring and alerting. It records metrics in a time series database built using an HTTP pull model, with flexible queries and real-time alerting. The project is written in Go and licensed under the Apache 2 License, with source code available on GitHub, and is a graduated project of the Cloud Native Computing Foundation, along with Kubernetes and Envoy. | | ------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | | wikipedia:: [Prometheus (software)](https://en.wikipedia.org/wiki/Prometheus_(software)) | | | url:: [Prometheus - Monitoring system & time series database](https://prometheus.io/) |