🌤️ Weather MCP Tool (Latinum Paywalled Agent Tool)

A minimal Model Context Protocol (MCP) tool that provides weather info for any city. Access to London is paywalled and requires Solana devnet payment via the Latinum Wallet MCP server.

🔧 Installation

git clone https://github.com/dennj/weather_mcp.git
cd weather_mcp
python3 -m venv .venv
source .venv/bin/activate
pip install --upgrade pip
pip install -r requirements.txt

⚙️ Configuration

Create a .env file in the project root:

# .env
SELLER_WALLET=3BMEwjrn9gBfSetARPrAK1nPTXMRsvQzZLN1n4CYjpcU

• SELLER_WALLET: The Solana devnet public address that will receive payments.

🚀 Run Locally

python server_stdio.py

Claude will detect the tool when properly configured.

🧠 Claude Integration

Edit your Claude Desktop config:

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
      "weather_mcp": {
          "command": "/Users/{YOUR_USER}/workspace/weather_mcp/.venv/bin/python",
          "args": [
              "/Users/{YOUR_USER}/workspace/weather_mcp/server_stdio.py"
          ]
      }
  }
}

Then restart Claude.

💳 How It Works

• ❓ Ask: What's the weather in Paris? → Claude responds instantly.
• ❌ Ask: What's the weather in London? → Claude gets a 402 and triggers the wallet.
• ✅ Claude pays using Latinum Wallet and retries.