QuickNode incident

Base Sepolia - Increase in `instrinsic gas too high` Errors on eth_estimateGas calls

Minor Resolved View vendor source →

QuickNode experienced a minor incident on April 21, 2026 affecting Sepolia - JSON-RPC API and Sepolia - WebSocket API, lasting 7h 41m. The incident has been resolved; the full update timeline is below.

Started
Apr 21, 2026, 12:30 AM UTC
Resolved
Apr 21, 2026, 08:11 AM UTC
Duration
7h 41m
Detected by Pingoru
Apr 21, 2026, 12:30 AM UTC

Affected components

Sepolia - JSON-RPC APISepolia - WebSocket API

Update timeline

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

    We are investigating an increase in `instrinsic gas too high` API errors on `eth_estimateGas` requests on Base Sepolia that started with the Sepolia Azul Upgrade at 18 UTC today. We are working with the Base team to address this issue and will update this status with findings and resolution ASAP.

  2. identified Apr 21, 2026, 08:09 AM UTC

    Foundation cut a new release with a couple of bug fixes for Azul (latest hardfork) on Base Sepolia. https://github.com/base/base/releases/tag/v0.7.6

  3. monitoring Apr 21, 2026, 08:11 AM UTC

    Our engineers completed upgrading the Base Sepolia node infrastructure to 0.7.6 https://github.com/base/base/releases/tag/v0.7.6

  4. resolved Apr 21, 2026, 08:11 AM UTC

    This incident has been resolved.