The narrative that "SaaS is dead" has been circulating for months, but the reality is far more nuanced. SaaS isn't dying; it’s evolving. However, for many companies, that evolution is happening faster than their business models can keep up. Historically, the vast majority of SaaS users, roughly 95%, interacted with applications through a traditional User Interface (UI). A tiny minority (perhaps 5%) used APIs for automation. Because of this UI-centric model, "per seat" pricing became the industry standard. It was simple, predictable, and tied directly to human interaction. But the advent of Large Language Models (LLMs) and the Model Context Protocol (MCP) is fundamentally altering this landscape. We are entering the era of the "headless" SaaS. The New Engagement Mix…