Pulls German and Luxembourg day-ahead electricity prices from SMARD at 15-minute resolution, but gates each API call behind a $0.001 USDC micropayment on Base mainnet using the x402 protocol. You get one tool that fetches the latest price data. Instead of an API key, you send an X-PAYMENT header generated by signing a transaction with your wallet. The MCP endpoint runs over streamable-http, so your client needs to support that transport. Useful if you're building energy trading models or smart home automations that need real-time price signals and you're comfortable with crypto wallet auth instead of traditional keys.
claude mcp add --transport http io.github.moldy93-smard-x402 https://smard-energy-prices-x402.favo.workers.dev/mcp