Polymarket - Scheduled CLOB maintenance – Maintenance details

All systems operational

Scheduled CLOB maintenance

Completed
Scheduled for August 28, 2026 at 4:00 AM – 5:00 AMUTC

Affects

Predictions

Under maintenance from 4:00 AM to 5:00 AM

Predictions Trading API (CLOB)

Under maintenance from 4:00 AM to 5:00 AM

Updates
  • Completed
    August 28, 2026 at 5:00 AMUTC
    Completed
    August 28, 2026 at 5:00 AMUTC
    Maintenance has completed successfully
  • In progress
    August 28, 2026 at 4:00 AMUTC
    In progress
    August 28, 2026 at 4:00 AMUTC
    Maintenance is now in progress
  • Planned
    August 27, 2026 at 9:39 PMUTC
    Planned
    August 27, 2026 at 9:39 PMUTC

    A scheduled CLOB release requires a brief restart, with downtime of up to ~10 minutes. Order placement, cancels, and fills may be temporarily unavailable.