{"id":"dyrnq-metrics-server","name":"metrics-server","homepage":"https://hub.docker.com/r/dyrnq/metrics-server","repo_url":"https://hub.docker.com/r/dyrnq/metrics-server","category":"monitoring","subcategories":[],"tags":["kubernetes","monitoring","metrics","autoscaling","hpa","cluster-ops"],"what_it_does":"metrics-server is a Kubernetes component that aggregates resource usage metrics (typically CPU/memory) from kubelets and exposes them to the Kubernetes API (for use by components like kubectl top and Horizontal Pod Autoscaler).","use_cases":["Enable kubectl top for cluster resource monitoring","Support Horizontal Pod Autoscaler (HPA) based on CPU/memory metrics","Provide aggregated metrics for other Kubernetes controllers/add-ons"],"not_for":["Providing application-level business metrics (APM/trace/log analytics)","Long-term metrics storage/queries (use Prometheus/Thanos/etc. for that)","External multi-tenant metrics collection for non-Kubernetes environments"],"best_when":"You want lightweight, in-cluster aggregation of node/pod resource metrics for Kubernetes-native autoscaling and visibility.","avoid_when":"You need durable metrics storage, rich label-based analytics, or non-Kubernetes metric ingestion.","alternatives":["Prometheus + kube-state-metrics (for richer metrics)","metrics-server alternatives depending on cluster needs (e.g., custom metrics via adapters)"],"af_score":33.5,"security_score":67.0,"reliability_score":40.0,"package_type":"mcp_server","discovery_source":["docker_mcp"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T21:28:48.920410+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":false,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["Kubernetes RBAC/ServiceAccount authentication (in-cluster)"],"oauth":false,"scopes":false,"notes":"Authentication is handled via Kubernetes service account identities and RBAC when deployed in a cluster; no external OAuth-style flow is indicated."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Open-source/self-hosted component; cost depends on your infrastructure/cluster operation."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":33.5,"security_score":67.0,"reliability_score":40.0,"mcp_server_quality":0.0,"documentation_accuracy":0.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":70.0,"rate_limit_clarity":0.0,"tls_enforcement":80.0,"auth_strength":70.0,"scope_granularity":60.0,"dependency_hygiene":50.0,"secret_handling":70.0,"security_notes":"Runs inside Kubernetes; transport security typically relies on the Kubernetes control plane/proxying and TLS defaults. Authorization is governed by RBAC; operational security depends on least-privilege configuration. No direct evidence provided here of dependency scanning status or specific secret handling patterns.","uptime_documented":0.0,"version_stability":60.0,"breaking_changes_history":50.0,"error_recovery":50.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":[]}}