Content
<h4 align="center">Golang-based MCP server connecting to Kubernetes</h4>
<h1 align="center">
<img src="docs/images/logo.png" width="180"/>
<br/>
MCP K8S Go
</h1>
<p align="center">
<a href="#features">Features</a> ⚙
<a href="#browse-with-inspector">Browse With Inspector</a> ⚙
<a href="#use-with-claude">Use With Claude</a> ⚙
<a href="https://github.com/strowk/mcp-k8s-go/blob/main/CONTRIBUTING.md">Contributing ↗</a> ⚙
<a href="https://modelcontextprotocol.io">About MCP ↗</a>
</p>
<p align="center">
<a href="https://github.com/strowk/mcp-k8s-go/actions/workflows/dependabot/dependabot-updates"><img src="https://github.com/strowk/mcp-k8s-go/actions/workflows/dependabot/dependabot-updates/badge.svg"></a>
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<a href="https://github.com/strowk/mcp-k8s-go/actions/workflows/golangci-lint.yaml"><img src="https://github.com/strowk/mcp-k8s-go/actions/workflows/golangci-lint.yaml/badge.svg"/></a>
<br/>
<a href="https://github.com/strowk/mcp-k8s-go/releases/latest"><img src="https://img.shields.io/github/v/release/strowk/mcp-k8s-go?logo=github&color=22ff22" alt="latest release badge"></a>
<a href="https://goreportcard.com/report/github.com/strowk/mcp-k8s-go"><img src="https://goreportcard.com/badge/github.com/strowk/mcp-k8s-go" alt="Go Reference"></a>
<a href="https://github.com/strowk/mcp-k8s-go/blob/main/LICENSE"><img src="https://img.shields.io/github/license/strowk/mcp-k8s-go" alt="license badge"></a>
</p>
## Features
MCP 💬 prompt 🗂️ resource 🤖 tool
- 🗂️🤖 List Kubernetes contexts
- 💬🤖 List Kubernetes namespaces
- 🤖 List, get, create and modify any Kubernetes resources
- includes custom mappings for resources like pods, services, deployments
- 🤖 List Kubernetes nodes
- 💬 List Kubernetes pods
- 🤖 Get Kubernetes events
- 🤖 Get Kubernetes pod logs
- 🤖 Run command in Kubernetes pod
## Browse With Inspector
To use latest published version with Inspector you can run this:
```bash
npx @modelcontextprotocol/inspector npx @strowk/mcp-k8s
```
## Use With Claude
<details><summary><b>
Demo Usage
</b></summary>
Following chat with Claude Desktop demonstrates how it looks when selected particular context as a resource and then asked to check pod logs for errors in kube-system namespace:
</details>
To use this MCP server with Claude Desktop (or any other client) you might need to choose which way of installation to use.
You have multiple options:
| | <a href="#using-smithery">Smithery</a> | <a href="#using-mcp-get">mcp-get</a> | <a href="#prebuilt-from-npm">Pre-built NPM</a> | <a href="#from-github-releases">Pre-built in Github</a> | <a href="#building-from-source">From sources</a> | <a href="#using-docker">Using Docker</a> |
| ------------ | -------------------------------------- | ------------------------------------ | ---------------------------------------------- | ------------------------------------------------------- | ------------------------------------------------ | ---------------------------------------- |
| Claude Setup | Auto | Auto | Manual | Manual | Manual | Manual |
| Prerequisite | Node.js | Node.js | Node.js | None | Golang | Docker |
### Using Smithery
To install MCP K8S Go for Claude Desktop automatically via [Smithery](https://smithery.ai/server/@strowk/mcp-k8s):
```bash
npx -y @smithery/cli install @strowk/mcp-k8s --client claude
```
### Using mcp-get
To install MCP K8S Go for Claude Desktop automatically via [mcp-get](https://mcp-get.com/packages/%40strowk%2Fmcp-k8s):
```bash
npx @michaellatman/mcp-get@latest install @strowk/mcp-k8s
```
### Manually with prebuilt binaries
#### Prebuilt from npm
Use this if you have npm installed and want to use pre-built binaries:
```bash
npm install -g @strowk/mcp-k8s
```
Then check version by running `mcp-k8s --version` and if this printed installed version, you can proceed to add configuration to `claude_desktop_config.json` file:
```json
{
"mcpServers": {
"mcp_k8s": {
"command": "mcp-k8s",
"args": []
}
}
}
```
, or using `npx` with any client:
```bash
npx @strowk/mcp-k8s
```
For example for Claude:
```json
{
"mcpServers": {
"mcp_k8s": {
"command": "npx",
"args": [
"@strowk/mcp-k8s"
]
}
}
}
```
#### From GitHub releases
Head to [GitHub releases](https://github.com/strowk/mcp-k8s-go/releases) and download the latest release for your platform.
Unpack the archive, which would contain binary named `mcp-k8s-go`, put that binary somewhere in your PATH and then add the following configuration to the `claude_desktop_config.json` file:
```json
{
"mcpServers": {
"mcp_k8s": {
"command": "mcp-k8s-go",
"args": []
}
}
}
```
### Building from source
You would need Golang installed to build this project:
```bash
go get github.com/strowk/mcp-k8s-go
go install github.com/strowk/mcp-k8s-go
```
, and then add the following configuration to the `claude_desktop_config.json` file:
```json
{
"mcpServers": {
"mcp_k8s_go": {
"command": "mcp-k8s-go",
"args": []
}
}
}
```
### Using Docker
This server is built and published to Docker Hub since 0.3.1-beta.2 release with multi-arch images available for linux/amd64 and linux/arm64 architectures.
You can use latest tag f.e like this:
```bash
docker run -i -v ~/.kube/config:/home/nonroot/.kube/config --rm mcpk8s/server:latest
```
Windows users might need to replace `~/.kube/config` with `//c/Users/<username>/.kube/config` at least in Git Bash.
For Claude:
```json
{
"mcpServers": {
"mcp_k8s_go": {
"command": "docker",
"args": [
"run",
"-i",
"-v",
"~/.kube/config:/home/nonroot/.kube/config",
"--rm",
"mcpk8s/server:latest"
]
}
}
}
```
### Environment Variables and Command-line Options
The following environment variables are used by the MCP server:
- `KUBECONFIG`: Path to your Kubernetes configuration file (optional, defaults to ~/.kube/config)
The following command-line options are supported:
- `--allowed-contexts=<ctx1,ctx2,...>`: Comma-separated list of allowed Kubernetes contexts that users can access. If not specified, all contexts are allowed.
- `--readonly`: Disables any tool which can write changes to the cluster
- `--help`: Display help information
- `--version`: Display version information
- `--mask-secrets`: Mask secrets in the output (default: true). Use `--mask-secrets=false` to disable masking
For example if you are configuring Claude Desktop, you can add the following configuration to `claude_desktop_config.json` file:
```json
{
"mcpServers": {
"mcp_k8s": {
"command": "mcp-k8s",
"args": [
"--allowed-contexts=dev,prod",
"--readonly"
]
}
}
}
```
, which would allow only `dev` and `prod` contexts to be used and would disable any tool which can write changes to the cluster.
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