ok but not sure why i need to build an mcp for my product if llms can already call my existing apis ?

If you are not sure, you don't need it. If you get to understand the usefulness of MCP, then you might find a use for it.

well i was responding to person who was asking me "what a better way over mcp" to interact with your product. looks like you inserted yourself with your usual one line non sequiturs. BOT.

Person you were responding to here. You do have a solid point/question. To be completely honest: my original thinking was that for once, I am going to go with the flow on something like this. I often fight inertia, but this felt like a bad thing to do it on.

Now, I realize that the best argument for MCP vs function calls in my case, is that I want to allow external products/agents/chatbots to interface with my app. MCP is that standard. I will implement very carefully, but that's what I need to do.