MCP server · DevTools

Hello World MCP Server (Reference Extension)

Desktop Extensions: One-click local MCP server installation in desktop apps

Install — paste into MCP config

{
  "mcpServers": {
    "Hello World MCP Server (Reference Extension)": {
      "command": "uvx",
      "args": [
        "mcp-server-Hello World MCP Server (Reference Extension)"
      ]
    }
  }
}

Alternative — Claude Code CLI (generic example)

claude mcp add Hello World MCP Server (Reference Extension) -- uvx mcp-server-Hello World MCP Server (Reference Extension)

Generic patterns, not this server's documented command — confirm the real command and transport in the original listing. Local stdio servers use the JSON block; if the README shows an http(s) endpoint instead, use your client's remote-URL option.

At a glance

Published by anthropics — listed by mcpso. Setup details live in the original listing.

How to use

Pick a block: paste the JSON into your MCP client config, or adapt the CLI example.
Restart or reconnect the client so it picks up the server.
Confirm the exact command and transport in the original listing.

Hello World MCP Server (Reference Extension)

At a glance

How to use

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