[Question]: How to get Kotlin based MCP server working with docker version of LibreChat

[tomhillgreyridge]

What is your question?

I have a Kotlin based MCP server using Stdio for communication and I'm using the docker based install of LibreChat on Windows. I'm wondering if there are any instructions on how to get something like that to run as the examples are all using existing node based mcp servers.

For reference, using desktop claude I simply add the following

{
  "mcpServers": {
    "my-mcp-server": {
      "command": "java",
      "args": [
        "-jar",
        "path/to/jar/file.jar"
      ],
	  "env": {
		  "VARIABLE_1": "value1",
		  "VARIABLE2": "value2"
	  }
    }
  }
}

The obvious issue I have is that with LibreChat running in Docker I'm not sure how to get it to have Stdio communication with a JAR file hosted on my machine, rather than the docker container.

Has anyone tried this sort of approach where you want a docker container to run an MCP server which interacts with the host machine?

More Details

Latest version of LibreChat
Installed Via Docker
Windows 11

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Documentation

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