K8s MCP Server vs Radar

A side-by-side comparison of two DevOps & Cloud servers — tools, transport, auth, maintenance, and copy-paste config for each.

	K8s MCP Server Run kubectl, helm, istioctl, and argocd against your clusters from Claude in a secure Docker sandbox. Unverified stdio (local) No auth Python	Radar Built-in MCP server for the open-source Kubernetes UI — lets AI assistants query and operate your cluster. Unverified HTTP (remote) No auth Go
Category	DevOps & Cloud	DevOps & Cloud
Language	Python	Go
Transport	stdio (local)	HTTP (remote)
Auth	None	None
GitHub stars	210	2.4k
Last commit	3 months ago	1 day ago
Verified
Actively maintained
Install	`docker run -i --rm -v ~/.kube:/home/appuser/.kube:ro ghcr.io/alexei-led/k8s-mcp-server:latest`	`curl -fsSL https://get.radarhq.io \| sh`
Repo	Open	Open

Verdict

Pick K8s MCP Server if you want a local (stdio) server that keeps data on your machine.

Pick Radar if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Add K8s MCP Server

Install / run

docker run -i --rm -v ~/.kube:/home/appuser/.kube:ro ghcr.io/alexei-led/k8s-mcp-server:latest

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "k8s-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-v",
        "/Users/YOUR_USER_NAME/.kube:/home/appuser/.kube:ro",
        "ghcr.io/alexei-led/k8s-mcp-server:latest"
      ]
    }
  }
}

Requires Docker to be installed and running.

Add Radar

Install / run

curl -fsSL https://get.radarhq.io | sh

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "radar": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "http://localhost:9280/mcp"
      ]
    }
  }
}

Claude Desktop connects to remote servers through the `mcp-remote` proxy (installed on first run via npx). Restart Claude Desktop after saving.

FAQ

K8s MCP Server or Radar — which is better?

Pick K8s MCP Server if you want a local (stdio) server that keeps data on your machine. Pick Radar if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Can I use both K8s MCP Server and Radar?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do K8s MCP Server and Radar work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View K8s MCP Server →View Radar →More comparisons →