Simple MCP Server (using @modelcontextprotocol/sdk)

This is a simple MCP server built with the @modelcontextprotocol/sdk, express, and zod.

Features

• Tools: get-time - returns the current time.
• Resources: sample-resource - returns a sample resource.

Installation

1. Clone the repository:

   git clone https://github.com/your-username/simple-mcp-server.git
   cd simple-mcp-server

2. Install dependencies:

   npm install

Usage

To run the server, use the following command:

npm start

The server will start on http://localhost:3000/mcp. You can send POST requests to this endpoint to interact with the server.

Example Requests

Tool Request

Request:

curl -X POST -H "Content-Type: application/json" -d '{
  "id": "1",
  "type": "tool",
  "name": "get-time",
  "arguments": {}
}' http://localhost:3000/mcp

Response:

{
  "id": "1",
  "result": {
    "content": [
      {
        "type": "text",
        "text": "{\"time\":\"2023-10-27T12:34:56.789Z\"}"
      }
    ],
    "structuredContent": {
      "time": "2023-10-27T12:34:56.789Z"
    }
  }
}

Resource Request

Request:

curl -X POST -H "Content-Type: application/json" -d '{
  "id": "2",
  "type": "resource",
  "uri": "sample-resource"
}' http://localhost:3000/mcp

Response:

{
  "id": "2",
  "result": {
    "contents": [
      {
        "uri": "sample-resource:",
        "text": "This is a sample resource"
      }
    ]
  }
}