---
id: "INC-polymarket-cmu1iwq1e01621mqboccoh76s"
page: "https://infrastack.ai/live/INC-polymarket-cmu1iwq1e01621mqboccoh76s"
kind: "incident"
aliases: []
title: "Polymarket: Scheduled CLOB maintenance (No downtime expected)"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "vendor"
products: [{"name": "Polymarket", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["incident", "polymarket", "security", "vendor"]
not_affected_if: []
published_at: "2026-09-15T04:00:00+00:00"
first_seen_at: "2026-11-08T17:00:43+00:00"
updated_at: "2026-11-08T17:03:20+00:00"
sources: [{"source": "statuspage", "url": "https://status.polymarket.com/maintenance/cmu1iwq1e01621mqboccoh76s", "first_seen_at": "2026-11-08T17:00:43+00:00"}]
exploit_sources: []
---

# Polymarket: Scheduled CLOB maintenance (No downtime expected)

Link for people: https://infrastack.ai/live/INC-polymarket-cmu1iwq1e01621mqboccoh76s (this .md is for agents)

Polymarket ran a planned 30-minute maintenance on its Predictions Trading API (CLOB) to update periphery services. The notice says users may see brief degradation when creating or deleting API keys; it reports no security flaw.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Polymarket affected range not listed fixed no fixed version listed

## Timeline

- 2026-11-08T17:00:43+00:00 statuspage https://status.polymarket.com/maintenance/cmu1iwq1e01621mqboccoh76s

## From the sources

Type: Maintenance
    Duration: 30 minutes

    Affected Components: Predictions Trading API (CLOB)
    Sep 15, 04:30:00 GMT+0 - Completed - Maintenance has completed successfully Sep 15, 04:00:01 GMT+0 - Identified - Maintenance is now in progress Sep 14, 17:35:06 GMT+0 - Identified - We are updating periphery services for the CLOB. No downtime is expected. Users may experience temporary degradation around API key creation and deletes.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_