Cert-Manager MCP Server

Example Use Cases

• 1

  List and filter certificates (including expired ones) across namespaces to detect and report certificate expiry risk.

• 2

  Fetch full certificate details and domain names to validate certificate configuration or surface problems to operators.

• 3

  Trigger a certificate renewal and inspect Issuer/ClusterIssuer status and Kubernetes contexts to coordinate remediation.

Description

This MCP server provides tools to list and inspect cert-manager Certificates and Issuers, force certificate renewals, and perform Kubernetes context and namespace queries. It runs as a Docker container (examples provided for Claude Desktop and GKE) and exposes read-only listing operations plus a renewal action. It is useful for debugging certificate state, locating expired certificates, and managing kubeconfig contexts when working with cert-manager-managed resources.