k8s-mcp-server
Provides a Go-based Model Context Protocol (MCP) server that exposes Kubernetes resources as MCP tools (e.g., Pod/Deployment/Service/etc.) and also offers a generic custom-resource tool for CRDs. Operations are executed against a Kubernetes cluster using a provided kubeconfig.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Security depends on the kubeconfig’s Kubernetes RBAC; the README states operations are restricted by RBAC. However, the README does not specify transport security, secret-handling/logging behavior, audit logging, or additional agent-level safeguards. The custom tool uses a gRPC backend URL, increasing the need to trust/configure that endpoint securely.
⚡ Reliability
Best When
You have a properly scoped kubeconfig (RBAC-limited), and you run the MCP server in a controlled environment (e.g., local/sidecar) where the agent’s allowed actions map cleanly to Kubernetes RBAC.
Avoid When
You cannot constrain permissions (RBAC) or you are unable to limit what the agent can do (e.g., broad cluster-admin kubeconfig).
Use Cases
- • Let an AI agent inspect Kubernetes state (Get/List/Logs) via MCP tools
- • Enable controlled Kubernetes CRUD workflows (create/update/delete) driven by agent actions
- • Support automation of common workloads (deployments/services/namespaces) from natural-language or tool calls
- • Handle Kubernetes custom resources (CRDs) via a generic custom tool
Not For
- • Untrusted or unauthenticated agent environments where kubeconfig credentials could be abused
- • Workloads requiring fine-grained auditability beyond Kubernetes RBAC
- • High-assurance production control without additional guardrails (approvals, policy enforcement)
Interface
Authentication
Authentication is implicitly via the provided kubeconfig; the effective authorization is determined by Kubernetes RBAC permissions on that kubeconfig.
Pricing
Open-source installation via Go; no pricing information provided in README.
Agent Metadata
Known Gotchas
- ⚠ CRUD tool calls can be destructive (update/delete); ensure the kubeconfig/RBAC is tightly scoped before enabling the server
- ⚠ List/Get operations may still require broad permissions depending on resource type
- ⚠ Custom resource tool relies on a separate gRPC backend URL (customURL), which adds another moving part to configure correctly
Alternatives
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Scores are editorial opinions as of 2026-03-30.