Is Prefect Horizon down?
Last checked 2m agoNo active incidents. All 3 components operational.
Prefect Horizon is operational right now. Last checked 2m ago; the most recent incident resolved 12d ago.
Real-time Prefect Horizon status, recent outages, and incident history: pulled directly from Prefect Horizon's official status page at status.horizon.prefect.io every 5 minutes. Pingoru tracks 3 Prefect Horizon services and has captured 2 incidents in the last 90 days (99.97% uptime). Get email, Slack, Discord, or webhook alerts the moment Prefect Horizon reports a new incident, free for 3 monitors, no credit card.
Recent outages & incidents
Past 90 days- Builds
Timeline · 2 updates
- monitoring · Oct 21, 2026, 04:34 PM UTC
Builds triggered by GitHub pushes are starting 10–25 minutes late. GitHub is having an incident that delays webhook deliveries (githubstatus.com: http://githubstatus.com). Builds run normally once they start, and running servers are not affected. We're monitoring and will update when delivery times return to normal.
- resolved · Oct 21, 2026, 05:43 PM UTC
GitHub webhook deliveries have recovered and builds are starting normally again.
Latest: GitHub webhook deliveries have recovered and builds are starting normally again.
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- MCP Serving
Timeline · 3 updates
- investigating · Aug 31, 2026, 05:30 PM UTC
We are investigating reports of slow responses and errors when serving MCP requests.
- identified · Aug 31, 2026, 05:46 PM UTC
We have identified the cause of the increased latency and errors affecting MCP Serving and are working on a resolution.
- resolved · Aug 31, 2026, 06:01 PM UTC
MCP Serving has recovered, and we are no longer seeing elevated latency or errors.
Latest: MCP Serving has recovered, and we are no longer seeing elevated latency or errors.
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Incident record
Since April 2026 · incident.io · 3 components checked every 5 minutesThe longest incident in the last year, Hosted server builds are delayed on April 15, 2026, ran for 12 hours. 1 maintenance window announced in the same period.
Most affected components, last 12 months
- Builds1
- MCP Serving1
Latest incidents
- Delayed builds from GitHub pushes
Builds triggered by GitHub pushes are starting 10–25 minutes late. GitHub is having an incident that delays webhook deliveries (githubstatus.com…
- MCP Serving slow responses and errors
We are investigating reports of slow responses and errors when serving MCP requests.
- Server builds delayed
<p>Background job system is impacted by outside service outage. Server Builds are delayed. The team is investigating</p> <p> </p> <p>MCP serving is…
- Delayed builds from GitHub pushes ResolvedStarted Oct 21, 2026, 04:34 PM UTC · Resolved Oct 21, 2026, 05:43 PM UTC · 1h 9m
- Started Aug 31, 2026, 05:30 PM UTC · Resolved Aug 31, 2026, 06:01 PM UTC · 30m