Klustercost

Runs on api, self-hosted, Web.

Klustercost is ranked #7 of 23 in Kubernetes cost management software on The Geeks Club. It runs on API, Self-hosted, Web. There is a free plan.

Klustercost plans and pricing

Open source Free Open source under GPL-3.0 License klustercost.cloud · 4 Oct 2026

Purpose: Klustercost provides Kubernetes cost visibility by application, monitoring pods and pricing nodes.
Monitoring: Go-based observers use Kubernetes informers and Prometheus to track pods, nodes, and namespaces in real time.
Data storage: Pod and node data is persisted in PostgreSQL every 10 minutes.
Pricing data: Nodes are enriched with hourly VM costs from Azure retail pricing APIs.
Queries: AI translates plain-English questions into natural-language answers and structured JSON.
Query safety: The site describes AI queries as read-only.
Integrations: The site lists WhatsApp, Teams, Slack, Power BI, HTTP API, and MCP protocol access.
Deployment: A Helm chart deploys the monitor, pricing service, database, and optional AI layer.
License: The project is open source under the GPL-3.0 License.
Cluster compatibility: The repository says Azure cost enrichment is supported, while AWS and GCP support are planned.
Prerequisites: The repository lists a running Kubernetes cluster, Helm 3.x, reachable Prometheus, Metrics Server, and a StorageClass among installation prerequisites.
Optional AI requirement: The repository says natural-language queries through the MCP assistant require an OpenAI API key.
Price from: Free

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