Introduction to the Model Context Protocol (MCP) Java SDK

Model Context Protocol (MCP) is an open-source standard for integrating AI applications with external tools and data sources. The Java SDK implements MCP through three layers: Client/Server (McpClient/McpServer), Session (McpSession), and Transport (McpTransport). Server primitives include tools (executable functions), resources (data sources), and prompts (reusable templates). The tutorial demonstrates creating a simple logging tool, setting up an MCP server with stdio transport, implementing a client that connects to both sample and custom servers, and testing tool invocation through the protocol.