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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 29, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 29, 2026 9:50 AM EDT · Resolved Apr 29, 2026 10:03 AM EDT · Duration 12 minutes

The Mastercard API sandbox environment experienced a major service issue affecting the Mastercard Benefits & Experiences Portal and Transaction API for Acquirers. The incident impacted multiple sandbox components used for development and testing purposes. The service was restored after 12 minutes.

Major April 29, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 29, 2026 9:42 AM EDT · Resolved Apr 29, 2026 9:46 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 29, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 29, 2026 9:30 AM EDT · Resolved Apr 29, 2026 9:34 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 29, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 29, 2026 9:02 AM EDT · Resolved Apr 29, 2026 9:06 AM EDT · Duration 4 minutes

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

Major April 29, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 29, 2026 8:26 AM EDT · Resolved Apr 29, 2026 8:30 AM EDT · Duration 5 minutes

The Mastercard API experienced a major service issue affecting the Sandbox environment and Mastercard Benefits & Experiences Portal. Both components were impacted during the incident. The service was restored after 5 minutes.

Major April 29, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 29, 2026 5:30 AM EDT · Resolved Apr 29, 2026 8:02 AM EDT · Duration about 3 hours

The Mastercard API sandbox environment experienced a major service issue affecting three currency conversion services: Enhanced Currency Conversion Calculator, Standard Currency Conversion Calculator, and Currency Conversion for Originating Institution. The incident impacted developers' ability to test and integrate these currency conversion functionalities in the sandbox environment. The service was restored after 2.5 hours.

Major April 29, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 29, 2026 2:01 AM EDT · Resolved Apr 29, 2026 2:05 AM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Mastercard Account Validation service in the Sandbox environment. The incident impacted the Sandbox testing environment and the Account Validation functionality specifically. The service was restored after 4 minutes of downtime.

Major April 28, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 28, 2026 4:08 PM EDT · Resolved Apr 28, 2026 4:12 PM EDT · Duration 4 minutes

The Mastercard API experienced a major service issue affecting the Sandbox environment and MDES Customer Service for 4 minutes. The incident impacted developers' ability to test integrations and access customer service functions in the sandbox environment. The service was restored after a brief 4-minute outage.

Major April 28, 2026

April 2026: Production - Service issue detected

Detected Apr 28, 2026 1:00 PM EDT · Resolved Apr 28, 2026 1:44 PM EDT · Duration 44 minutes

The Mastercard Installments API experienced a major service issue in production that lasted 44 minutes. The incident affected the Production environment and the Mastercard Installments API component. The service has been restored to normal operation.

Major April 28, 2026

April 2026: Sandbox - Service issue detected

Detected Apr 28, 2026 12:21 PM EDT · Resolved Apr 28, 2026 12:25 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.