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Very Simple MCP Server Sample

@ynaoto

Repository

Basic information

Category

Other

Transports

stdio

Author

ynaoto

About Very Simple MCP Server Sample

The world most simplest MCP server sample, maybe.

Very Simple MCP Server Sample config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "very-simple-mcp-server-sample": {
      "command": "node",
      "args": [
        "<PATH_TO_HERE>/build/index.js"
      ]
    }
  }
}

Very Simple MCP Server Sample tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is very-simple-mcp-server-sample?

It is a minimal MCP server sample (less than 50 lines of code) that demonstrates the simplest possible integration with an MCP client such as Claude Desktop.

How to use very-simple-mcp-server-sample?

Install Node.js and npm, then run npm install and npm run build to produce a build folder. Configure the server in your MCP client’s settings—for Claude Desktop, add an entry to claude_desktop_config.json under mcpServers with the command node and the argument pointing to <PATH_TO_HERE>/build/index.js. After setup, the server appears in “Available MCP Tools.”

Key features of very-simple-mcp-server-sample

  • Minimal codebase (less than 50 lines)
  • Builds with standard npm commands
  • Configurable via MCP client settings
  • Supports permission prompts for tool execution

Use cases of very-simple-mcp-server-sample

  • Learning how to implement a basic MCP server
  • Testing MCP client integration with a simple example
  • Demonstrating permission workflows in Claude Desktop

Frequently asked questions

1

What dependencies are required?

Node.js and npm must be installed. Installing Node.js also installs npm automatically.

2

How do I verify the server is configured correctly?

After configuration in Claude Desktop, the server and its tools should appear under “Available MCP Tools” in the tools panel.

3

What happens when I invoke a tool?

Claude Desktop will show a permission prompt. After granting permission, the tool executes and a result is displayed.

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