radar

Name: radar
Author: skyhook-io

Verified

The missing open-source Kubernetes UI with a built-in MCP server for AI agents. See what's broken, why, and what changed. Issues, Topology, event timeline, Helm, GitOps, live service traffic, and cluster audits - all in one Go binary.

3,340stars

205forks

Installation

# Add to your Claude Code skills
git clone https://github.com/skyhook-io/radar

Getting Started

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Security ReportVerified

Last scanned: 5/1/2026

{
  "issues": [],
  "status": "PASSED",
  "scannedAt": "2026-05-01T06:37:42.020Z",
  "semgrepRan": false,
  "npmAuditRan": true,
  "pipAuditRan": true
}

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See how radar compares with popular alternatives.

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README.md

Frequently Asked Questions

What is radar?

radar is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by skyhook-io. The missing open-source Kubernetes UI with a built-in MCP server for AI agents. See what's broken, why, and what changed. Issues, Topology, event timeline, Helm, GitOps, live service traffic, and cluster audits - all in one Go binary. It has 3,340 GitHub stars.

Is radar safe to use?

Yes. radar passed SkillsLLM's automated security scan — a dependency vulnerability audit plus prompt-injection heuristics — with no high-severity issues. You can read the full report in the Security Report section on this page.

How do I install radar?

Clone the repository with "git clone https://github.com/skyhook-io/radar" and add it to your Claude Code skills directory (see the Installation section above).

What programming language is radar written in?

radar is primarily written in Go. It is open-source under skyhook-io on GitHub, so you can review or fork the full source.

Are there alternatives to radar?

Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh radar against similar tools.

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Radar

The missing open-source Kubernetes UI. Single binary. No account required. Free forever.

🌐 radarhq.io · Docs · Releases

Topology, resources, Helm, GitOps, traffic, audit, upgrade impact, and MCP context for AI agents — from your laptop or in-cluster.

Why Radar?
Installation
Usage
Views — Topology · Resources · Image Filesystem · Timeline · Helm · Compare · TLS · GitOps · Traffic · Cost · Audit · Upgrade impact · RBAC · MCP · Auth
Supported Resources
Keyboard Shortcuts
Security
Development · Contributing

Install and run in 30 seconds:

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

More installation options ↓

Why Radar?

Zero install on your cluster — runs on your laptop, talks to the K8s API directly
Single binary — no dependencies, no agents, no CRDs
Fast on big clusters — tested on tens of thousands of pods, with responsive views and live updates under real cluster churn
Private by design — your cluster data stays on your machine. No account, no agents, no cloud sync, no cluster telemetry
Airgapped-friendly — runs as a single binary against the Kubernetes API and works in locked-down environments with outbound egress blocked
Real-time — watches your cluster via informers, pushes updates to the browser via SSE
Works everywhere — GKE, EKS, AKS, minikube, kind, k3s, or any conformant cluster
AI-ready — built-in MCP server lets AI agents inspect, investigate, and operate your cluster through Radar
In-cluster option — deploy with Helm for shared team access with RBAC-scoped permissions

"Have Radar deployed at work. As far as Kubernetes dashboards go, this is one of the best." — u/TheRealNetroxen

Installation

Quick Install:

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

Homebrew:

brew install skyhook-io/tap/radar

Then run: kubectl radar. Quick install, PowerShell, Homebrew, and Scoop also set up the radar shorthand. Krew and direct downloads use kubectl radar unless you add your own radar symlink.

CLI

Krew (kubectl plugin manager):

kubectl krew install radar

Scoop (Windows):

scoop bucket add skyhook https://github.com/skyhook-io/scoop-bucket
scoop install radar

PowerShell (Windows):

irm https://get.radarhq.io/install.ps1 | iex

Direct download — GitHub Releases for macOS, Linux, or Windows.

Desktop App

Native desktop app — no terminal needed.

Homebrew (macOS):

brew install --cask skyhook-io/tap/radar-desktop

Debian/Ubuntu — download the .deb from GitHub Releases, then:

sudo apt install ./radar-desktop_*.deb

Fedora/RHEL — download the .rpm from GitHub Releases, then:

sudo rpm -i radar-desktop_*.rpm

Scoop (Windows):

scoop bucket add skyhook https://github.com/skyhook-io/scoop-bucket
scoop install radar-desktop

Windows (direct download) — GitHub Releases.

In-Cluster Deployment

Deploy to your cluster for shared team access:

helm repo add skyhook https://skyhook-io.github.io/helm-charts
helm install radar skyhook/radar -n radar --create-namespace

See the In-Cluster Deployment Guide for Gateway API and ingress exposure, authentication, and RBAC configuration.

Usage

# Opens browser automatically
kubectl radar

# Quick install, PowerShell, Homebrew, and Scoop also set up the bare command
radar

To inspect an in-cluster Radar Cloud installation without changing it:

radar cloud status
radar cloud status --context my-cluster
radar cloud status --context my-cluster --namespace radar --release radar

The command reports installation ownership, chart and image, agent readiness, and Cloud configuration without printing the connection token. Passing both --namespace and --release selects an exact installation. Live tunnel status is reported by Radar Cloud using the token in the referenced Kubernetes Secret. If the Secret or Hub is unavailable, local installation diagnostics still run. Interactive terminals use restrained status colors; set NO_COLOR (or pipe the output) for plain text. URLs, tokens, and suggested commands remain unstyled.

CLI Flags

The table below covers common startup flags. See the full CLI reference; radar --help is authoritative for the installed version.

Flag	Default	Description
`--kubeconfig`	`~/.kube/config`	Path to primary kubeconfig file
`--kubeconfig-dir`		Comma-separated directories containing additional kubeconfig files
`--namespace`	(all)	Initial namespace filter (supports multi-select in the UI; also used as RBAC fallback for namespace-scoped users)
`--namespaces`	(all)	Initial namespace filters as a comma-separated list, e.g. `--namespaces ns1,ns2,ns3`. Use this when your identity can list resources in specific namespaces but cannot list namespaces cluster-wide.
`--namespace-scope`	`false`	Pin namespaced informer caches to a single namespace for large clusters (scoping to multiple namespaces is not supported yet). Requires `--namespace`, a kubeconfig context namespace, or a saved local single-namespace pick. Local mode can rebuild the cache when switching namespaces; auth/cloud mode locks the shared cache to the startup namespace.
`--port`	`9280`	Server port
`--listen-address`	`127.0.0.1`	HTTP listen address. Use `127.0.0.1` or `localhost` for local-only access; use `0.0.0.0` explicitly for containers, VMs, WSL, or remote/shared access, together with authentication and network controls.
`--base-path`		Serve Radar under a URL prefix such as `/radar`. Use when an ingress forwards a subpath without stripping it — everything, including `/api/health`, moves under the prefix. Not supported with `--cloud-url`.
`--no-browser`	`false`	Don't auto-open browser
`--browser`		Browser to use when opening the UI, e.g. `firefox`, `google-chrome`, or `Google Chrome` on macOS
`--timeline-storage`	`memory`	Timeline storage backend: `memory`, `sqlite`, or `postgres`
`--timeline-db`	`~/.radar/timeline.db`	Path to SQLite database (when using sqlite storage)
`--timeline-max-size`	`1Gi`	Maximum SQLite DB + WAL size before pruning oldest events (e.g. `800Mi`, `8Gi`; `0` disables)
`--history-limit`	`10000`	Maximum events to retain in timeline (memory only)
`--disable-exec`	`false`	Disable terminal and debug shell
`--disable-helm-write`	`false`	Disable Helm write operations
`--disable-local-terminal`	`false`	Disable the host local terminal
`--debug-image`	`busybox:latest`	Image for ephemeral debug containers and node debug pods. If built-in restricted PodSecurity rejects the default pod debug container, Radar retries with a restricted-compatible Linux security context using the target/pod non-root UID, or UID `65532` by default; point at a compatible mirror for air-gapped / private-registry clusters.
`--list-page-size`	`0` (off)	Paginate the initial LIST of high-cardinality kinds (Pods, ReplicaSets) at this size. Helps very large clusters that fail to sync; only used when WatchList streaming is unavailable. Try `2000`.
`--context-switch-timeout`	`30s`	Maximum time a kubeconfig context switch may take. Widen on high-latency control planes — see Tuning for slow clusters. Env: `RADAR_CONTEXT_SWITCH_TIMEOUT`.
`--first-paint-backstop`	`5m`	Hard upper bound on the initial critical-cache sync wait before Radar falls through to a