Interestingly think I just came to the opposite conclusion after building CLIs + MCPs for code.deepline.com

Where MCPs fit in - short answer is enterprise auth for non-technical users.

CLIs (or APIs + Skills) are easier + faster to set up, UX is better for most use cases, but a generalized API with an easier auth UX (in some cases, usually the MCP Oauth flow is flaky too).

So feels like an imperfect solution, but once you start doing a ton of enterprise auth setups, MCP starts to make more sense.