Buildkite experienced a major incident on June 11, 2026 affecting REST API and Remote MCP Server, lasting 57m. The incident has been resolved; the full update timeline is below.
Affected components
REST APIRemote MCP Server
Update timeline
- investigating Jun 11, 2026, 11:18 PM UTC
We're observing increased latency for all our customers. We're currently investigating and will provide status updates as they become available.
- monitoring Jun 11, 2026, 11:49 PM UTC
We've isolated the issue to elevated load on our REST API service and are working to mitigate. The agent and stacks API isn’t affected.
- monitoring Jun 11, 2026, 11:51 PM UTC
We've isolated the issue to elevated load on our REST API service and have mitigated the issue. The agent and stacks API isn’t affected.
- resolved Jun 12, 2026, 12:16 AM UTC
The mitigation applied before the last update had the intended effect, and we have seen recovery in REST API latency.