QuickNode incident

Arbitrum Mainnet - Elevated 503 and API Errors

Minor Ongoing View vendor source →

QuickNode is currently experiencing a minor incident affecting Mainnet Nitro — JSON-RPC API and Mainnet Nitro — WebSocket API and 1 more component, which began 47 min ago. The vendor's full update timeline is below.

Started
May 20, 2026, 07:43 PM UTC
Resolved
Ongoing
Duration
● 47m
Detected by Pingoru
May 20, 2026, 07:43 PM UTC

Affected components

Mainnet Nitro — JSON-RPC APIMainnet Nitro — WebSocket APIMainnet Classic — JSON-RPC APIMainnet Classic — WebSocket APIMainnet — WebhooksMainnet — Streams

Update timeline

  1. investigating May 20, 2026, 07:43 PM UTC

    We are investigating an elevated rate of 503 errors affecting Arbitrum Mainnet. Our team has identified an issue with backend connectivity and is actively working to restore full service. We will provide updates as more information becomes available.