Klustercost review
A practical Azure-focused option for open-source Kubernetes cost querying.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Klustercost is an open-source, self-hosted Kubernetes cost visibility platform for teams that want workload-level cost and usage information inside their existing Kubernetes environment. It monitors pods, nodes, namespaces, services, and controllers through the Kubernetes API, collects CPU and memory usage through Prometheus, and gathers workload and ownership metadata. Its allocation granularity is the workload, making it a fit for teams that need to connect Kubernetes consumption with applications or owners rather than view infrastructure only at a cluster level.
The deployment model is a strong fit for platform teams comfortable operating Kubernetes components. Helm-based deployment runs inside an existing Kubernetes cluster, while PostgreSQL stores metrics, metadata, and pricing data. Klustercost enriches Kubernetes node data with Azure retail pricing and supports natural-language cost and usage queries powered by AI. Access extends beyond the web interface through an HTTP API and MCP, with Microsoft Teams and Power BI-oriented reporting integrations. Together, these options support both interactive investigation and reporting workflows, particularly in Azure-centered environments.
Klustercost should appeal to organizations seeking a free, open-source foundation for Kubernetes cost visibility and allocation, especially when Azure is the primary cloud environment. It is less suitable for teams looking for a broader multicloud pricing layer or built-in cost optimization. The product does not provide features such as rightsizing, forecasting, commitment optimization, or budget alerts, so it focuses more narrowly on collecting, enriching, querying, and reporting cost data. Choose it when ownership-aware workload analysis and flexible access matter most; consider an alternative when optimization automation or broader cloud coverage is central to the buying decision.
Klustercost pros and cons
- Where it wins
- Free, open-source deployment with Helm inside Kubernetes
- Combines Prometheus metrics, ownership metadata, and Azure pricing
- Natural-language queries plus HTTP API, MCP, Teams, and Power BI workflows
- Where it doesn't
- Pricing enrichment currently targets Azure
- Does not include optimization features such as rightsizing
- Requires Kubernetes, Prometheus, and PostgreSQL components
Klustercost fact sheet, pricing and score →
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