How Can CTOs Cut $500K+ Legacy Costs by Moving to API-Driven Integrations?

https://www.slideserve.com/botwingtdn/transforming-a-500k-year-monolith-by-february-3-2026-practical-paths-and-trad

Which critical questions will help CTOs decide whether API-driven integrations can cut legacy costs? If you manage engineering at a mid-to-large retail brand and you’re paying half a million or more a year just to keep a monolithic platform