Initially I took MCP to be some crazy new thing, but once I dug into it, it's really just a soft-standard for connecting a database, API, or other data source (e.g., a list of functions that can be called) to a vector database and then returning a response in a standardized JSON format.

It's basically RAG with a bit of sugar on top. What spooks me is how few people hyping MCP seem to understand that.