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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 May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 9:01 AM EDT · Resolved May 7, 2026 9:09 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 May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 8:49 AM EDT · Resolved May 7, 2026 8:57 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 May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 8:40 AM EDT · Resolved May 7, 2026 8:45 AM EDT · Duration 5 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 5 minutes of downtime.

Major May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 8:32 AM EDT · Resolved May 7, 2026 8:36 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 May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 8:20 AM EDT · Resolved May 7, 2026 8:28 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 May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 8:12 AM EDT · Resolved May 7, 2026 8:16 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 May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 8:04 AM EDT · Resolved May 7, 2026 8:08 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 May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 1:55 AM EDT · Resolved May 7, 2026 2:03 AM EDT · Duration 8 minutes

The Mastercard Cross-Border Services API experienced a major service issue in the sandbox environment that lasted 8 minutes. The incident affected the sandbox testing environment for cross-border payment services. The service was restored after 8 minutes of downtime.

Major May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 1:27 AM EDT · Resolved May 7, 2026 1:31 AM EDT · Duration 4 minutes

The Mastercard Cross-Border Services API experienced a major service issue in the sandbox environment that lasted 4 minutes. The incident affected both the sandbox testing environment and the Cross-Border Services functionality. The service has been restored to normal operation.

Major May 7, 2026

May 2026: Sandbox - Service issue detected

Detected May 7, 2026 12:18 AM EDT · Resolved May 7, 2026 12:26 AM EDT · Duration 8 minutes

The Mastercard API Sandbox experienced a major service issue affecting the Event Creation functionality. The incident impacted the Sandbox environment's ability to create events, disrupting testing and development activities. The service was restored after 8 minutes of downtime.