Alchemy incident

[Network-Wide] Base Sepolia - "intrinsic gas too high" errors with eth_estimateGas calls

Alchemy experienced a minor incident on April 20, 2026 affecting Base, lasting 11h 40m. The incident has been resolved; the full update timeline is below.

Started: Apr 20, 2026, 11:00 PM UTC
Resolved: Apr 21, 2026, 10:40 AM UTC
Duration: 11h 40m
Detected by Pingoru: Apr 20, 2026, 11:00 PM UTC

Affected components

Base

Update timeline

investigating Apr 20, 2026, 11:00 PM UTC

We are currently investigating an increase in intrinsic gas too high errors on eth_estimateGas requests impacting Base Sepolia, which began following the Sepolia Azul upgrade. We are actively working with the Base team and will provide updates as more information becomes available.
resolved Apr 21, 2026, 10:40 AM UTC

This incident has been resolved.