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Mastercard API Outage History

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

There were 1759 Mastercard API outages since October 2025. The 1759 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 10:17 AM EDT · Resolved Apr 24, 2026 10:21 AM EDT · Duration 4 minutes

The Mastercard API Sandbox experienced a major service issue affecting the Transaction API for Acquirers. The incident impacted the sandbox environment used for testing and development purposes. The service was restored after 4 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 10:01 AM EDT · Resolved Apr 24, 2026 10:09 AM EDT · Duration 8 minutes

The Mastercard API Sandbox experienced a major service issue affecting the Transaction API for Acquirers. The incident impacted the sandbox environment used for testing and development purposes. The service was restored after 8 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 9:53 AM EDT · Resolved Apr 24, 2026 9:57 AM EDT · Duration 4 minutes

The Mastercard API Sandbox experienced a major service issue affecting the Transaction API for Acquirers. The incident impacted the sandbox environment used for testing and development purposes. The service was restored after 4 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 9:41 AM EDT · Resolved Apr 24, 2026 9:49 AM EDT · Duration 8 minutes

The Mastercard API Sandbox experienced a major service issue affecting the Transaction API for Acquirers. The incident impacted sandbox environment functionality for acquirer transaction processing. The service was restored after 8 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 9:12 AM EDT · Resolved Apr 24, 2026 9:29 AM EDT · Duration 17 minutes

The Mastercard API experienced a major service issue affecting the Transaction API for Acquirers in the sandbox environment. The incident impacted developers' ability to test transaction processing functionality through the sandbox system. The service was restored after 17 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 9:00 AM EDT · Resolved Apr 24, 2026 9:08 AM EDT · Duration 8 minutes

The Mastercard API Sandbox experienced a major service issue affecting the Transaction API for Acquirers. The incident impacted the sandbox environment used for testing and development purposes. The service was restored after 8 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 8:32 AM EDT · Resolved Apr 24, 2026 8:52 AM EDT · Duration 20 minutes

The Mastercard API experienced a major service issue affecting the Transaction API for Acquirers in the sandbox environment. The incident impacted developers' ability to test transaction processing functionality through the sandbox system. The service was restored after 20 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 8:12 AM EDT · Resolved Apr 24, 2026 8:20 AM EDT · Duration 8 minutes

The Mastercard API experienced a major service issue affecting the Transaction API for Acquirers in the sandbox environment. The incident impacted developers' ability to test transaction processing functionality through the sandbox system. The service was restored after 8 minutes of downtime.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 7:48 AM EDT · Resolved Apr 24, 2026 7:52 AM EDT · Duration 4 minutes

The Mastercard API sandbox environment experienced a major service issue affecting Crypto Solutions, Easy Savings Specials Merchant Offers, and Transaction API for Acquirers. All affected components in the sandbox environment were impacted during the incident. The service was restored after 4 minutes.

Major April 24, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 24, 2026 7:48 AM EDT · Resolved Apr 24, 2026 8:08 AM EDT · Duration 20 minutes

The Mastercard API Sandbox experienced a major service issue affecting Crypto Solutions and Transaction API for Acquirers. The incident impacted the sandbox environment used for testing and development purposes. The service was restored after 20 minutes.