API Movers and Shakers: Your Weekly API Performance Report

Once again, U.S. Government APIs are not doing so well. FEMA in the US Government Collection was in the Red Zone with a CASC score of 5.72. This was primarily due to an outage on the 7th of March, which saw the requests to most endpoints timeout. There was also a scattering of failures throughout the week where endpoints not delivering responses of the correct size. Interestingly, the only endpoint to remain with a CASC score in the green zone, FEMA Get Hazard Mitigation Plan Statuses, also saw these timeouts around the same time, but not nearly as many. Allied Irish Bank Sandbox in the Open Banking UK Sandboxes decreased by 17% from 9.42 (in the Green Zone) to 7.77 (in the Yellow Zone). This was due to a large jump in server processing time affecting all but the OAuth endpoint (not all endpoints shown in graph for clarity). Around the 9th of March, Average server time jumped by around 100ms. This was coupled with an increase in outliers and failures across some endpoints where the server returned HTTP 500 Internal Server Error.

API Performance Highlights

• Revolut in the Open Banking UK Production category takes the overall title for best API again this week with a CASC score of 9.82.
• Contentful in the GGV Capital API-First category is the fastest API again this week with an average latency of 48 ms, the same as last week.
• Monzo Bank is the best-performing bank in the Open Banking UK Production category with monitored AISP (non-consent) endpoints again this week with a CASC score of 9.47, up from 9.27 last week.
• FEMA in the US Government category is the overall worst performing API again this week with a CASC score of 5.72.
• 12 categories are topped by an API with a CASC score of 9.50 or more, up from 11 last week.
• 15 categories are topped by an API with a CASC score of 9.00 or more, the same as last week.
• 3 categories have bottom API with a CASC score of 9.00 or more, the same as last week.
• 7 categories have bottom API with a CASC score of 8.00 or more, down from 15 last week.
• 2 APIs (Barclays Personal Sandbox in the Open Banking UK Sandboxes collection with a CASC score of 5.9, FEMA in the US Government collection with a CASC score of 5.72) are in the Red Zone with a CASC score of less than 6.00 this week, down from 3 last week.