docker network create mcp-tools-net

services:
  LLMChatService:
  ...
  networks:
    - mcp_network
...
...
networks:
  mcp_network:
    external: true
    name: mcp-tools-net

docker exec -it ts-mcp-tools wget -qO- http://localhost:3000/ping
# should return {"status":"ok", "timestamp": "..."}

docker compose logs ts-mcp-tools

{
  "name": "@mcp-servers/hello-world",
  "version": "0.0.1",
  // type & exports below must be delared that way avoid main. This is how a TS modules are picked up in node
  "type": "module",
  "exports": {
    ".": "./src/index.ts"
  },
  "scripts": {
    "test": "node --experimental-strip-types --experimental-test-module-mocks --test \"**/*.test.ts\""
  },
  // If you are using any shared packages
  "dependencies": {
    "@mcp-packages/common": "*"
  }
}

import { McpServer } from "@modelcontextprotocol/server";
import { helloWorldTool } from "./tools/hello-world-tool.ts";

export default function registerHelloWorld(server: McpServer) {
  server.registerTool(
    helloWorldTool.name,
    {
      description: helloWorldTool.description,
      inputSchema: helloWorldTool.schema,
    },
    helloWorldTool.execute,
  );

  return server;
}

import registerHelloWorld from "@mcp-servers/hello-world"; // import server
//...

function createServer() {
  const server = new McpServer({
    name: "ts-mcp-tools-server",
    version: "0.0.1",
  });
  // ...
  registerHelloWorld(server); // apply server
  // ...
  return server;
}