Share My Creation Model Context Protocol (MCP) Server using Stdio

Github: https://github.com/pyhoon/mcp-server-b4j

Use Claude desktop to talk to the MCP server.
Sample claude_desktop_config.json attached.

 

[aeric]

We can simulate the "Client" by simply running the B4J app and typing these JSON strings into the console to test it.
Build the app in release and test using the following input in cmd:

1. Handshake (Initialize): Client sends:

{"jsonrpc": "2.0", "id": 1, "method": "initialize", "params": {"protocolVersion": "2024-11-05", "capabilities": {}, "clientInfo": {"name": "TestClient", "version": "1.0"}}}

Server replies: Lists capabilities and server info.

2. List Tools: Client sends:

{"jsonrpc": "2.0", "id": 2, "method": "tools/list"}

Server replies: JSON defining get_inventory and add_product.

3. Call Tool (Query Database): Client sends:

{"jsonrpc": "2.0", "id": 3, "method": "tools/call", "params": {"name": "get_inventory", "arguments": {}}}

Server replies: A JSON list of your SQLite rows!

 

[aeric]

Update your claude_desktop_config.json in C:\Users\<yourusername>\AppData\Roaming\Claude

{
  "mcpServers": {
    "b4j-inventory": {
      "command": "Path/To/OpenJDK/bin/java",
      "args": [
        "-jar",
        "C:/Path/To/Your/mcp_server.jar"
      ]
    }
  }
}

and your MCP server will be available!

Restart the Claude desktop app if there is an error.

You can click the Greater Than button next to the switch to see available tools.

When you ask the AI Client, you will be asked to Allow it to proceed.

 

[hatzisn]

() * 10000

 

[aeric]

() * 10000

Are you successfully follow and run the server project?

 

[hatzisn]

Are you successfully follow and run the server project?

Not yet. But I will try it a.s.a.p. Thank you for your effort.

 

[aeric]

Not yet. But I will try it a.s.a.p. Thank you for your effort.

I believe this is the most "complicated" MCP demo you can find on earth.
See the file size
Have fun!