{"data":{"slug":"radar","name":"Radar","tagline":"Apache-2.0 Kubernetes web UI — topology, Helm, GitOps, audit, built-in MCP","category":"devops","categoryName":"DevOps","url":"https://radarhq.io","github":"https://github.com/skyhook-io/radar","pricing":"open-source","hook":"Radar is a single-binary Kubernetes web UI that shows what is broken, why, and what changed — topology, resources, Helm, GitOps, live traffic, audit, upgrade impact — with a built-in MCP server so agents can inspect the same cluster context.","whatsGood":"Apache-2.0 (skyhook-io/radar). Free path: curl the install script or grab a release binary, then `kubectl radar` — no account, no agents on the cluster, no cloud sync required. Telemetry is opt-in (anonymous usage counts / coarse cluster facts only). Built-in MCP lets coding agents query cluster state through Radar. Useful when kubectl YAML dumps are too slow for day-2 ops and you want a laptop UI plus an agent-readable surface. ★~3.6k.","theCatch":"Browser UI, not a terminal — if you live in kubectl/k9s only, this is a different seat. The MCP reads and operates through Radar’s cluster context; it does not run agents for you. Scope RBAC tightly: whatever the kubeconfig can do, the UI and MCP can attempt. Paid Radar Cloud adds hosted multi-cluster and SSO while the OSS binary stays free. ★ climbed fast for the project’s age (~3.6k in under a year) — judge it on substance (views, MCP, single binary), not the badge. Young product; pin a release.","verdict":"Apache-2.0 K8s web UI + MCP when day-2 cluster visibility belongs in a browser — OSS binary free forever; Cloud is the paid multi-cluster/SSO line; watch the star heat.","addedAt":"2026-10-06","featured":false,"domain":"DevOps","subSpecialty":"Kubernetes","subcategory":"Kubernetes","tags":["mcp","web-ui","self-host","permissive","kubernetes","active"],"capabilities":["kubernetes","ui","mcp"],"surfaces":["MCP","Self-host"],"ecosystem":["Go","Multi-platform"],"licenseModel":"Apache-2.0","githubStars":3851,"starsPerWeek":99,"access":"free","archived":false,"repo":{"createdAt":"2026-01-20","pushedAt":"2026-10-19","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"}},"related":[{"slug":"github-actions","name":"GitHub Actions","tagline":"CI/CD that lives where your code does"},{"slug":"docker","name":"Docker","tagline":"Container runtime that changed deployment"},{"slug":"kubernetes","name":"Kubernetes","tagline":"Container orchestration at scale"},{"slug":"pulumi","name":"Pulumi","tagline":"Infrastructure as code in real languages"},{"slug":"fly-io","name":"Fly.io","tagline":"Deploy apps to VMs close to your users"}],"links":{"self":"/api/gems/radar","html":"/gems/radar","markdown":"/gems/radar.md","category":"/api/gems?category=devops","categoryPage":"/stacks/devops"}}