Case Study: Atom Bank achieves one-day API delivery and accelerated innovation with MuleSoft

Atom Bank uses APIs to integrate data and deliver a fully mobile bank

Atom Bank is a UK mobile-only challenger bank with no branches or website, where all customer interactions happen via a smartphone app. Focused on speed-to-market, the bank had relied on “buy over build” and tightly coupled, point-to-point integrations that limited its ability to compose new services and innovate quickly.

Atom replaced its ESB with MuleSoft’s Anypoint Platform and an API-led approach, turning every integration into a reusable asset powered by the Mule runtime engine. The change cut the number of required APIs in half and reduced the monthly API development cycle from one month to one day, accelerating delivery and enabling rapid innovation.

Atom Bank