Polymarket - Scheduled CLOB maintenance – Maintenance details

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AUG28

Scheduled CLOB maintenance

CompletedAugust 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

  • CompletedAugust 28, 2026 at 5:00 AMUTC
    Maintenance has completed successfully
  • In progressAugust 28, 2026 at 4:00 AMUTC
    Maintenance is now in progress
  • PlannedAugust 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.