java-stdio

The java-stdio MCP server allows you to develop Model Context Protocol servers in Java using the LangChain4j framework. By leveraging JBang for execution, this server provides a streamlined approach for creating interactive applications that can handle standard input and output efficiently. Developers can utilize this server to build robust agent skills that can easily integrate with other tools and frameworks.

Once connected to the java-stdio MCP server, you can interact with it through standard input and output streams. You can send commands or queries formatted as JSON objects that the server will process and respond to appropriately. For best results, structure your commands to match the expected input format of the LangChain4j framework, ensuring that the necessary parameters are included. This server is ideal for executing complex workflows and managing stateful conversations.

Prerequisites

• Java Development Kit (JDK) version 11 or higher
• JBang installed on your system

Option A: Quick Start with JBang

You can quickly start the server using JBang without installing it globally by running:

jbang run https://github.com/glaforge/java-stdio-mcp-server

Option B: Global Install Alternative

If you prefer to install JBang globally, use the following command:

jbang app install https://github.com/glaforge/java-stdio-mcp-server

Then you can run the server with:

jbang java-stdio

When configuring the java-stdio server, ensure that your environment variables are set correctly for any external services you intend to connect with. Additionally, be cautious of common issues such as missing dependencies or incorrect JSON formatting in your commands, as these can lead to runtime errors. Always refer to the project's GitHub repository for the latest updates and troubleshooting tips.