pibblokto/cert-manager-mcp-server

MCP server for management and troubleshooting of certificates and other resources managed by cert-manager.
Claude Desktop config:
Claude Desktop config for GKE clusters:
Tools
This MCP server provides the following tools for interacting with cert-manager and Kubernetes resources:
Certificate Management
- **list_certificates** - List certificates within a namespace or across all namespaces, with options for filtering expired certificates and pagination. You can also include domains for listed certificates with include_domains argument (defaults to False to make responses more compact)
- **get_certificate** - Get detailed information about a specific certificate
- **renew_certificate** - Force renewal of a certificate
Issuer Management
- **list_issuers** - List issuers or cluster issuers with their statuses and configuration. Unlike **list_certificates** there are no pagination or filtering except for cluster/namespaced issuers and namespaces for Issuers.
Kubernetes Context Management
- **list_namespaces** - List all namespaces in the cluster
- **list_contexts** - List all available kubeconfig contexts
- **get_current_context** - Get the currently active kubeconfig context
- **switch_context** - Switch to a different kubeconfig context. Updates in-memory config
Available Tools
| Tool Name | Description | Read-Only | Parameters |
|-----------|-------------|-----------|------------|
| list_certificates | List certificates within a namespace or all namespaces, with filtering and pagination options | ✅ | namespace_name, all_namespaces, include_domains, list_expired, cursor, page_size |
| get_certificate | Get detailed information about a specific certificate | ✅ | namespace_name, certificate_name |
| renew_certificate | Force renewal of a certificate in a given namespace | ❌ | namespace_name, certificate_name |
| list_issuers | List issuers or cluster issuers with their statuses and configuration | ✅ | list_cluster_issuers, all_namespaces, namespace_name |