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Circle Outage History

Every past Circle outage tracked by IsDown, with detection times, duration, and resolution details.

There were 385 Circle outages since July 2020. The 120 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Major March 9, 2026

March 2026: API - Aleo Testnet (temporarily unavailable)

Detected Mar 9, 2026 4:04 PM UTC · Resolved Mar 24, 2026 2:27 PM UTC · Duration 15 days

Circle's Aleo Testnet API experienced technical issues that caused delays for customers using testnet functionalities. The incident lasted approximately 15 days before being resolved. The service has been fully restored to normal operation.

Major March 5, 2026

March 2026: Unichain Sepolia Network Issues

Detected Mar 5, 2026 11:48 PM UTC · Resolved Mar 6, 2026 12:29 AM UTC · Duration 41 minutes

The Unichain Sepolia network experienced a complete outage that affected all operations on the network for 41 minutes. Circle's service was impacted during this period as it depends on the Unichain Sepolia network functionality. The incident was resolved when the Unichain Sepolia network was restored.

Minor February 27, 2026

February 2026: Solana USDC - Solana Mainnet issues

Detected Feb 27, 2026 12:43 PM UTC · Resolved Feb 27, 2026 3:56 PM UTC · Duration about 3 hours

Circle experienced issues with their internal Solana nodes that made Solana USDC withdrawals unavailable and caused delays in deposit processing. The incident affected users' ability to move funds on the Solana network through Circle's service. The service disruption lasted 5 minutes and was classified as a major incident.

Major February 18, 2026

February 2026: Base Sepolia Network Issues

Detected Feb 18, 2026 6:40 AM UTC · Resolved Mar 24, 2026 3:04 PM UTC · Duration about 1 month

The Base Sepolia network experienced a complete outage that affected all Base Sepolia operations on Circle's service. The incident lasted approximately 34 days (824 hours) from February 18 to March 24, 2026. The issue was resolved once the Base Sepolia network was restored by the Base team.