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There's a free plan; paid tiers are quoted.
Prometheus has one listed plan: Open Source, at $0 per month. It is Apache 2.0 licensed and has no seat or usage limits, so the Prometheus software bill does not rise with metric volume or team size. The pricing page lists no paid tiers, add-ons or overages. Teams running servers should budget separately for their own infrastructure and operations; Prometheus relies on local storage, and those costs depend on how you deploy it.
01Every plan, line by line
| Plan | Billed annually | Billed monthly | Built for |
|---|---|---|---|
| Open Source | — | $0 | Teams monitoring systems and services |
02What the plan grid doesn't tell you
Self-hosted infrastructure
Prometheus relies on local storage. Budget for the infrastructure you operate; the vendor does not list infrastructure prices.
Operations and maintenance
The software has no usage fee, but your team is responsible for deploying and operating its servers.
Storage capacity
Local storage is part of the server architecture. Estimate capacity for your workload; the vendor lists no storage pricing.
03Which plan should you buy?
| If you are… | Get | Why |
|---|---|---|
| Side project | Open Source | The listed plan is free and has no seat or usage limits. |
| Startup in production | Open Source | The software remains free as usage grows; budget separately for the infrastructure you operate. |
| Team at scale | Open Source | There is no listed paid tier, but assess whether your deployment and local storage meet your needs. |
04Is Prometheus worth the money?
Prometheus is worth paying for only in the sense that you may need to fund the infrastructure and engineering time to operate it: the listed Open Source plan itself costs $0. Its lack of seat and usage limits makes it suitable for teams that want to run their own monitoring stack without a software bill tied to metric volume. Self-hosting is enough when your team can manage local storage, deployment and operations. The vendor lists no paid add-ons or managed plan.
Prometheus pricing FAQ
How much does Prometheus cost?
The Open Source plan costs $0 per month. It includes the Apache 2.0 license and has no seat or usage limits. The pricing page lists no paid tiers, add-ons or overages.
Does Prometheus charge by usage?
No usage-based charge is listed for the Open Source plan, which has no usage limits. Your own infrastructure costs may change with deployment needs, but Prometheus does not list a price for that infrastructure.
Are there paid Prometheus add-ons?
The pricing page lists no add-ons or paid tiers. Prometheus is available under the Open Source plan. Teams should distinguish the free software from the infrastructure and operational costs of running it themselves.
Is there a free trial for Prometheus?
A free trial is not listed. The Open Source plan itself costs $0 per month, so teams can use the open-source software without a trial period. It has no listed seat or usage limits.