Circle incident

Base Sepolia Degraded Performance (Sandbox)

Major Resolved View vendor source →

Circle experienced a major incident on April 20, 2026 affecting Circle CCTP - Sandbox and Circle Mint - Sandbox and 1 more component, lasting 22h 52m. The incident has been resolved; the full update timeline is below.

Started
Apr 20, 2026, 07:24 PM UTC
Resolved
Apr 21, 2026, 06:16 PM UTC
Duration
22h 52m
Detected by Pingoru
Apr 20, 2026, 07:24 PM UTC

Affected components

Circle CCTP - SandboxCircle Mint - Sandbox3rd Party Infrastructure & SystemsPW - Dev-Controlled Wallets - BASE - SEPOLIA - Balance APIsPW - Dev-Controlled Wallets - BASE - SEPOLIA - Transaction Creation/Estimation APIs

Update timeline

  1. investigating Apr 20, 2026, 07:24 PM UTC

    Sandbox USDC an EURC mints and burns on Base Sepolia are delayed due to network maintenance.

  2. investigating Apr 20, 2026, 07:31 PM UTC

    Sandbox USDC an EURC mints and burns and CCTP transfers on Base Sepolia are delayed due to network maintenance.

  3. investigating Apr 20, 2026, 07:34 PM UTC

    Sandbox USDC an EURC mints and burns and CCTP transfers on Base Sepolia are delayed due to network maintenance.

  4. resolved Apr 21, 2026, 06:16 PM UTC

    This incident is resolved.