Case Study: Citibanamex accelerates digital transformation with OpenLegacy

Citibanamex improves market position by expediting their mobile first strategy

Citibanamex, a major bank in Mexico and part of Citibank, faced significant challenges modernizing its core mainframe systems for the digital era. Previous integration efforts using middleware and gateways had created a complex and rigid IT environment, making it difficult to develop new customer-facing services. The bank needed to leverage its valuable legacy systems to support a mobile-first strategy and meet Open Banking standards, which led them to seek a solution from OpenLegacy.

OpenLegacy provided a solution using its mainframe connector, COBOL parser, and automated API generator to directly expose core banking applications as modern REST APIs. This bypassed complex middleware and allowed Citibanamex to build new digital services rapidly. The results were substantial, including a 90% faster development time, with 40 APIs created in one quarter and over 500 APIs now in production. This significantly lowered development costs, reduced complexity, and enabled the bank to quickly launch new products, improving its market position.

Citibanamex