PolygonIO incident

Sign-in failing when connecting AI tools to Massive

Minor Resolved View vendor source →

PolygonIO experienced a minor incident on September 28, 2026, lasting 28m. The incident has been resolved; the full update timeline is below.

Started
Sep 28, 2026, 01:19 PM UTC
Resolved
Sep 28, 2026, 01:48 PM UTC
Duration
28m
Detected by Pingoru
Sep 28, 2026, 01:19 PM UTC

Update timeline

  1. investigating Sep 28, 2026, 01:19 PM UTC

    Beginning no later than 8:25 PM ET on Sunday, September 27, connecting or reconnecting ChatGPT, Claude, Codex, and other AI tools to Massive through our remote MCP server fails at the sign-in step, often with an "invalid_client" error. The REST API and API-key access are unaffected.

  2. resolved Sep 28, 2026, 01:48 PM UTC

    This incident has been resolved.