{"data":{"slug":"gatus","name":"Gatus","tagline":"Apache-2.0 health checks and status page with alerts","category":"observability","categoryName":"Observability","url":"https://gatus.io","github":"https://github.com/TwiN/gatus","pricing":"open-source","hook":"Gatus is a developer-oriented status page and uptime checker: you define endpoints in YAML, check them over HTTP, ICMP, TCP or DNS, and assert conditions on status code, response time, body or certificate expiry.","whatsGood":"Apache-2.0 (TwiN/gatus), release v5.37.0 (2026-09-24). A single Go service or Docker image, configured entirely in YAML, so checks live in git. Conditions are expressions like `[STATUS] == 200` or `[RESPONSE_TIME] < 300`, and alerts go to Slack, Teams, PagerDuty, Discord, email, Matrix, Gotify, n8n and many more. It can store results in memory, SQLite or Postgres and runs well inside Kubernetes. ★~12.3k.","theCatch":"Config is YAML-only, with no UI for adding checks, which is great for GitOps and less great for non-engineers. It checks from wherever you run it, so you need a second location if you want to catch outages of that host itself. Suites are still marked alpha. A managed Gatus.io exists if you would rather not host it.","verdict":"The uptime checker for teams that want status checks in git — pick it over Uptime Kuma if YAML beats clicking.","addedAt":"2026-10-18","featured":false,"domain":"Observability","subSpecialty":"Observability","subcategory":"Observability","tags":["api","self-host","permissive","observability","active"],"capabilities":[],"surfaces":["API","Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"Apache-2.0","githubStars":12345,"starsPerWeek":33,"access":"free","archived":false,"repo":{"createdAt":"2019-09-04","pushedAt":"2026-10-17","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"}},"related":[{"slug":"sentry","name":"Sentry","tagline":"Error tracking that actually helps"},{"slug":"grafana","name":"Grafana","tagline":"Dashboards for everything observable"},{"slug":"prometheus","name":"Prometheus","tagline":"Time-series metrics for cloud-native"},{"slug":"opentelemetry","name":"OpenTelemetry","tagline":"Vendor-neutral observability framework"},{"slug":"datadog","name":"Datadog","tagline":"Unified observability platform"}],"links":{"self":"/api/gems/gatus","html":"/gems/gatus","markdown":"/gems/gatus.md","category":"/api/gems?category=observability","categoryPage":"/stacks/observability"}}