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Cortex is a horizontally scalable, highly available, multi-tenant, long term storage for Prometheus.


  • Horizontally scalable: Cortex can run across multiple machines in a cluster, exceeding the throughput and storage of a single machine.
  • Highly available: When run in a cluster, Cortex can replicate data between machines.
  • Multi-tenant: Cortex can isolate data and queries from multiple different independent Prometheus sources in a single cluster.
  • Long term storage: Cortex supports S3, GCS, Swift and Microsoft Azure for long term storage of metric data.

Getting Started

To get started with Cortex, follow these steps:

  1. Installation
  2. Basic Setup
  3. Example Usage


Community and Support

If you have any questions about Cortex, you can:

Your feedback is always welcome.

For security issues see

Engage with Our Community

We invite you to participate in the bi-weekly Cortex Community Calls, an exciting opportunity to connect with fellow developers and enthusiasts. These meetings are held every alternate Thursday, alternating between 1200 UTC and 1700 UTC, providing a platform for open discussion, collaboration, and knowledge sharing.

Our meeting notes are meticulously documented and can be accessed here, offering a comprehensive overview of the topics discussed and decisions made.

To ensure you never miss a meeting, we’ve made it easy for you to keep track:

  • View the Cortex Community Call schedule in your browser here. The displayed time zone is UTC.
  • If you’re a Google Calendar user, you can seamlessly integrate the Cortex Community Call schedule into your personal calendar. Click here to add the Cortex calendar.
  • Alternatively, download the .ics file here for use with any calendar application or service that supports the iCal format.

Join us in shaping the future of Cortex, and let’s build something amazing together!

Further reading


Blog Posts

Hosted Cortex

There are several commercial services where you can use Cortex on-demand:

Amazon Managed Service for Prometheus (AMP)

Amazon Managed Service for Prometheus (AMP) is a Prometheus-compatible monitoring service that makes it easy to monitor containerized applications at scale. It is a highly available, secure, and managed monitoring for your containers. Get started here. To learn more about the AMP, reference our documentation and Getting Started with AMP blog.

Emeritus Maintainers

  • Peter Štibraný @pstibrany
  • Marco Pracucci @pracucci
  • Bryan Boreham @bboreham
  • Goutham Veeramachaneni @gouthamve
  • Jacob Lisi @jtlisi
  • Tom Wilkie @tomwilkie

History of Cortex

The Cortex project was started by Tom Wilkie (Grafana Labs’ VP Product) and Julius Volz (Prometheus’ co-founder) in June 2016.

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