Polymarket - Notice history

Website - Operational

100% - uptime
Apr 2026 · 100.0%May · 100.0%Jun · 100.0%
Apr 2026
May 2026
Jun 2026

CLOB API - Operational

100% - uptime
Apr 2026 · 100.0%May · 99.84%Jun · 99.99%
Apr 2026
May 2026
Jun 2026

Markets API - Operational

100% - uptime
Apr 2026 · 100.0%May · 100.0%Jun · 100.0%
Apr 2026
May 2026
Jun 2026

Polygon (RPC) - Operational

100% - uptime
Apr 2026 · 100.0%May · 100.0%Jun · 100.0%
Apr 2026
May 2026
Jun 2026

User auth - Operational

100% - uptime
Apr 2026 · 100.0%May · 100.0%Jun · 99.99%
Apr 2026
May 2026
Jun 2026

Sports API - Operational

100% - uptime
Apr 2026 · 100.0%May · 100.0%Jun · 100.0%
Apr 2026
May 2026
Jun 2026

Notice history

Jun 2026

Scheduled CLOB maintenance
  • Completed
    June 18, 2026 at 4:18 AM
    Completed
    June 18, 2026 at 4:18 AM

    Maintenance is being rescheduled, targeted for tomorrow around the same time. Will post an updated maintenance alert shortly.

  • Planned
    June 17, 2026 at 8:26 PM
    Planned
    June 17, 2026 at 8:26 PM

    What to expect:

    • Trading intermittent for up to ~1 hour during the window. Orders won't match.

    • Post-only window after restart (2 min) before normal matching resumes.

    Post-only: only orders explicitly set with postOnly: true and cancellation of open order are accepted. Regular limit orders without the flag, market orders, and any taking liquidity will be rejected.

    See POST /order API reference for the post-only flag.

May 2026

Scheduled CLOB maintenance
  • Completed
    May 22, 2026 at 12:10 PM
    Completed
    May 22, 2026 at 12:10 PM

    Maintenance complete, trading is back to normal.

    Thanks for your patience.

  • In progress
    May 22, 2026 at 12:10 PM
    In progress
    May 22, 2026 at 12:10 PM
    Maintenance is now in progress
  • Planned
    May 22, 2026 at 12:10 PM
    Planned
    May 22, 2026 at 12:10 PM
    • Trading paused for ~5-10 minutes. The CLOB will restart at ~12:10 UTC.

    • 2 min cancel-only + post-only window after restart. Cancels and orders with postOnly: true will be accepted (See API reference here); market orders and taking liquidity will be rejected. Normal matching resumes shortly after.

Apr 2026 to Jun 2026

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