added mcp generator overview

Author: baell

advanced/mcp/mcp-overview.mdx

@@ -1,8 +1,20 @@
 ---
 title: "MCP Overview"
-description: "Overview of the Model Context Protocol generated by Mintlify"
+description: "Overview of the Model Context Protocol (MCP) Generator"
 ---
 
+## MCP Generator
+
+There are two components to MCP capabilities today:
+
+1. The MCP Generator delivered via [npm package](https://www.npmjs.com/package/mcp)
+2. The MCP Server that end-customers run locally
+
+The MCP Generator is a CLI tool that generates an MCP server based on your company's documentation & OpenAPI specification if available. It takes in your documentation and a OpenAPI spec and outputs an MCP server that can be used with any MCP client.
+
+The MCP Server is a simple HTTP server that listens for MCP client requests and returns the requested data.
+
+
 ## What is an MCP Server?
 
 Model Context Protocol is a standard released by Anthropic in November 2024 to simplify how applications can provide context to large language models (LLMs).