Prometheus Pricing

open sourceopen source · Apache 2.0last verified August 26, 2026official site ↗

Plan	Price	Notes
Open Sourceofficial source ↗	$0checked 2026-08-26	100% free and open source under Apache-2.0 license, self-hosted time series monitoring system

structured from cited official pricing sources: “Prometheus is a 100% free and open-source CNCF graduated monitoring and alerting toolkit licensed under Apache 2.0, incurring zero software licensing fees when self-hosted on your own compute infrastructure.”

Self-hosting cost

Prometheus is open source under the Apache 2.0 license. Self-hosting does not add a software license fee, but you still pay for infrastructure, operations, and any external model or API usage.

Free & cheaper AI Monitoring & Observability

same category, free plan or open-source license

OpenLITopen source100% free and open source under the Apache-2.0 license ($0 self-hosted on Docker and Kubernetes). Features OpenTelemetry-native LLM tracing, GPU hardware metrics (NVIDIA/AMD/Intel), Prompt Hub, and security guardrails. Managed OpenLIT Cloud edition is available for hosted enterprise deployments.Grafanaopen sourceGrafana is free and open-source under AGPL-3.0 for self-hosting. Grafana Cloud features a generous free tier (10k metrics series, 50GB logs/traces) and a Pro tier starting at $19/month plus pay-as-you-go usage.Latitudeopen sourceLatitude is an open-source AI agent observability and evaluation platform under the MIT license. It offers a free self-hosted edition and a free cloud Starter tier (20,000 credits/mo), alongside a Pro plan at $99/month for growing teams and custom Enterprise pricing.Judgevalopen sourceJudgeval is an open-source Python SDK (Apache-2.0) for AI agent evaluation and tracing. Judgment Labs offers hosted enterprise agent behavior monitoring and evaluation platform access via custom quotes.

Prometheus overview →alternatives →review: 85/100 →

FAQ

How much does Prometheus cost?

Prometheus is a 100% free and open-source CNCF graduated monitoring and alerting toolkit licensed under Apache 2.0, incurring zero software licensing fees when self-hosted on your own compute infrastructure.

Does Prometheus have a free plan?

Yes — Prometheus is open source and free to use.

Can you self-host Prometheus for free?

Prometheus is open source under the Apache 2.0 license. Self-hosting does not add a software license fee, but you still pay for infrastructure, operations, and any external model or API usage.

What are free or cheaper Prometheus alternatives?

OpenLIT, Grafana, Latitude are in the same category with a free plan or open-source license.

pricing is editorial catalog data (last verified August 26, 2026) — vendors change plans; confirm on the official site before you buy. Reuse this data under CC-BY 4.0 via /data.