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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 1, 2026

May 2026: Sandbox - Service issue detected

Detected May 1, 2026 7:07 AM EDT · Resolved May 1, 2026 7:11 AM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Sandbox environment and MDES Customer Service for 4 minutes. Both the testing sandbox and the MDES Customer Service component were impacted during this incident. The service has been restored to normal operation.

Major May 1, 2026

May 2026: Sandbox - Service issue detected

Detected May 1, 2026 6:06 AM EDT · Resolved May 1, 2026 6:10 AM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Sandbox environment and MDES Customer Service for 4 minutes. Both the Sandbox testing environment and MDES Customer Service functionality were impacted during this incident. The service has been restored to normal operation.

Major May 1, 2026

May 2026: Production - Service issue detected

Detected May 1, 2026 3:06 AM EDT · Resolved May 1, 2026 3:10 AM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Ethoca Alerts Merchant API in production. The incident impacted the production environment and lasted 4 minutes before being resolved.

Major May 1, 2026

May 2026: Production - Service issue detected

Detected May 1, 2026 12:30 AM EDT · Resolved May 1, 2026 12:34 AM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Straight Through Processing component in production. The incident impacted automated transaction processing capabilities for 4 minutes. The service has been restored to normal operation.

Major April 30, 2026

April 2026: Production - Service issue detected

Detected Apr 30, 2026 10:26 PM EDT · Resolved Apr 30, 2026 10:30 PM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting Commercial Event Notifications in the production environment. The incident impacted the Commercial Event Notifications component for 4 minutes. The service has been restored to normal operation.

Major April 30, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 30, 2026 8:09 PM EDT · Resolved Apr 30, 2026 8:13 PM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Sandbox environment and Easy Savings Specials Merchant Offers functionality. The incident impacted developers' ability to test and access merchant offer services through the sandbox platform. The service was restored after 4 minutes of downtime.

Major April 30, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 30, 2026 5:53 PM EDT · Resolved Apr 30, 2026 6:21 PM EDT · Duration 28 minutes

The Mastercard API experienced a major service issue affecting the Sandbox environment and Open Banking Insights service for 28 minutes. The incident impacted developers' ability to access sandbox testing capabilities and Open Banking Insights functionality. The service has been restored to normal operations.

Major April 30, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 30, 2026 5:25 PM EDT · Resolved Apr 30, 2026 5:33 PM 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 30, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 30, 2026 5:17 PM EDT · Resolved Apr 30, 2026 5:21 PM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Transaction API for Acquirers in the sandbox environment. The incident impacted the sandbox testing environment and the Transaction API functionality used by acquirers. The service was restored after 4 minutes.

Major April 30, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 30, 2026 5:09 PM EDT · Resolved Apr 30, 2026 5:13 PM 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.