mcp-open-meteo

Owned sample MCP server for Claude Desktop or Cursor. Two tools talk to Open-Meteo (public weather API). No API key.

This is a portfolio demo, not a client deliverable. It shows the SKU shape: tool definitions, client config, README.

Tools

Related MCP server: weather-mcp-server

Requirements

• Node 18+

• A client that speaks MCP over stdio: Cursor (any paid Cursor plan you already use) or Claude Desktop

You do not need ChatGPT Plus. Free ChatGPT cannot attach a local custom MCP.

Claude.ai free can add one remote custom connector (a public HTTPS MCP). A local stdio server like this one is wired in Claude Desktop (claude_desktop_config.json) or Cursor (~/.cursor/mcp.json). Test with no LLM at all via MCP Inspector:

npm install
npm run inspect

Install

git clone https://github.com/Jose24San/mcp-open-meteo.git
cd mcp-open-meteo
npm install

Cursor

Settings → MCP → add a server, or merge into ~/.cursor/mcp.json:

{
  "mcpServers": {
    "open-meteo": {
      "command": "node",
      "args": ["/ABSOLUTE/PATH/TO/mcp-open-meteo/src/index.js"]
    }
  }
}

Restart MCP (toggle the server off/on). In chat: "What's the 3-day forecast for McKinney, Texas?" Cursor should call get_forecast.

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):

{
  "mcpServers": {
    "open-meteo": {
      "command": "node",
      "args": ["/ABSOLUTE/PATH/TO/mcp-open-meteo/src/index.js"]
    }
  }
}

Use an absolute node path if Desktop cannot see nvm (which node). Fully quit and reopen Claude Desktop. Enable the open-meteo connector on a new chat, then ask for a forecast.

Not this sample

• Marketing automation, email, SMS, GHL

• OAuth or a private CRM (that's a paid gig, Standard/Premium)

• A whole product or a RAG chatbot