{"id":"kubesphere-metrics-server","name":"metrics-server","af_score":43.2,"security_score":69.0,"reliability_score":47.5,"what_it_does":"metrics-server (Kubernetes) aggregates and exposes resource metrics (CPU/memory) for Horizontal Pod Autoscaler (HPA) and related autoscaling/metrics consumers via the Kubernetes Metrics API (/apis/metrics.k8s.io).","best_when":"You need Kubernetes resource metrics for autoscaling and other cluster components and want the lightweight aggregated Metrics API.","avoid_when":"You require long-term metric retention, high-cardinality analytics, or a complete monitoring solution.","last_evaluated":"2026-04-04T21:29:10.222281+00:00","has_mcp":false,"has_api":true,"auth_methods":["Kubernetes API server authentication/authorization (RBAC)"],"has_free_tier":false,"known_gotchas":["Relies on Kubernetes API availability and RBAC permissions; failures may surface as HTTP 403/401/5xx from the API server","Metrics can be missing/lagged if scraping/aggregation fails or kubelets are not reachable","HPA requires correct metrics API availability and suitable permissions"],"error_quality":0.0}