# Buildkite: Increased latency on REST and GraphQL APIs

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-06-11 23:18 UTC · Resolved: 2026-06-12 00:16 UTC · Duration: 58 min
- Updates: 4 · Affected components: Remote MCP Server, REST API - Remote MCP Server, REST API, REST API - REST API
- [Vendor status page: https://stspg.io/43sd7wry4r3k](https://stspg.io/43sd7wry4r3k)
- [Company: Buildkite](https://rewindex.com/company/buildkite.md)

## Summary

Buildkite reported a major incident involving increased REST and GraphQL API latency for all customers, starting 2026-06-11 23:18 UTC and resolved 2026-06-12 00:16 UTC (57 min). Buildkite attributed the issue to elevated REST API service load and confirmed recovery after mitigation; the agent and stacks API were unaffected. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2026-06-11 23:18 UTC: We're observing increased latency for all our customers. We're currently investigating and will provide status updates as they become available.
- **monitoring** 2026-06-11 23:49 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** 2026-06-11 23:51 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** 2026-06-12 00:16 UTC: The mitigation applied before the last update had the intended effect, and we have seen recovery in REST API latency.

## Rewindex changes for this incident

- 2026-06-11 23:18 UTC: [Major incident: Increased latency on REST and GraphQL APIs](https://rewindex.com/change/i31ae7faaa4fab9.md)


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Canonical: https://rewindex.com/company/buildkite/incidents/6tr7whjn0vl8 · Markdown: https://rewindex.com/company/buildkite/incidents/6tr7whjn0vl8.md · JSON: https://rewindex.com/api/v1/companies/buildkite/incidents/6tr7whjn0vl8 · Generated 2026-10-18T09:44:03.973Z