Pure Java 21 MCP Server

what is Pure Java 21 MCP Server?

This project is an implementation of a Model Context Protocol (MCP) server in pure Java 21, adhering to the 2025-03-26 MCP specification without using external SDKs.

how to use Pure Java 21 MCP Server?

To use the server, ensure you have Java 21 and the Gson library installed. Compile the server using the provided commands and run it from the project's root directory to listen for JSON-RPC messages.

key features of Pure Java 21 MCP Server?

• Implements JSON-RPC version 2.0 for message parsing and serialization.
• Supports basic tool capabilities, including an echo tool.
• Logs server activity to a log file and console.

use cases of Pure Java 21 MCP Server?

1. Building applications that require a compliant MCP server.
2. Testing JSON-RPC interactions in a controlled environment.
3. Developing tools that communicate via the MCP protocol.

FAQ from Pure Java 21 MCP Server?

• What is the purpose of this server?

It serves as a compliant implementation of the Model Context Protocol for Java applications.

• Do I need any special libraries?

Yes, you need the Gson library for JSON parsing and serialization.

• How do I run the server?

After compiling, run the server using the provided Java command in the terminal.