FastMCP author here -- (maybe surprisingly) I agree with many of the observations here.

FastMCP exists because I found the original spec and SDK confusing and complicated. It continues to exist because it turns out there's great utility in curating an agent-native API, especially when so many great dev tools have adopted this client interface.

But the spec is still so young and at such risk of being co-opted by hype (positive and negative). I would invite everyone to participate constructively in improving it.

Lastly: this article is plainly AI generated, as `from mcp import tool` is completely hallucinated. Just some food for thought for the "AI should be able to figure out my complex REST API" crowd that seems well represented here.