Plain incident
Listing threads via the Plain MCP server is failing
Plain experienced a minor incident on October 7, 2026 affecting MCP, lasting 46m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 07, 2026, 04:09 PM UTC
Status: Investigating Since 15:41 UTC, listing threads through the Plain MCP server fails with an error. The Plain app and API are working normally. We've identified the cause and are deploying a fix. We'll update this page once it's live. Affected components MCP (Degraded performance)
- identified Oct 07, 2026, 04:21 PM UTC
Status: Identified We've found the cause and are rolling out a fix. Listing threads via the Plain MCP server will keep failing until it's live. The Plain app and API aren't affected. Affected components MCP (Partial outage)
- monitoring Oct 07, 2026, 04:50 PM UTC
Status: Monitoring We've deployed a fix, and listing threads via the Plain MCP server is working again. We're monitoring to make sure it stays that way. Affected components MCP (Operational)
- resolved Oct 07, 2026, 04:55 PM UTC
Status: Resolved Listing threads via the Plain MCP server is working again. Between 15:41 and 16:45 UTC, these requests failed. The Plain app and API weren't affected. If your AI client still shows errors, start a new session and try again. Affected components MCP (Operational)