API-led connectivity is a modern evolution of SOA that enables scalable, reusable, and governed integration across systems. It uses a three-layered architecture—system, process, and experience APIs—to simplify complexity and improve agility. This approach decouples data sources from consumers, enhances reuse, and allows teams to build faster while maintaining control. IT benefits from modularity, visibility, and governance, while business units gain self-service access and faster project delivery. Companies like Bayer and Wells Fargo have used this model to cut development time, improve customer experience, and drive innovation at scale.

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