SMARD Energy Prices (x402)

What your AI can do with it

• Look up day-ahead electricity prices for the DE-LU region (Germany and Luxembourg)
• Get prices at 15-minute resolution across the day
• Retrieve paywalled price data by paying per request with x402 on the Base network
• Compare prices across the day to spot cheaper and more expensive hours

Install SMARD Energy Prices (x402)

The server’s own address, for the clients that take one directly. Or connect Ahel once and every client you use reads it from one address, with the account kept on Ahel rather than in each client’s config.

• Claude Code

  claude mcp add --transport http --scope user smard-energy-prices-x402 'https://smard-energy-prices-x402.favo.workers.dev/mcp'Copy

  Run it once in your project, then open /mcp to approve any sign-in the server asks for.

• Claude Desktop

  https://smard-energy-prices-x402.favo.workers.dev/mcpCopy

  Add a custom connector in Settings, paste this address, and approve the sign-in.

• Cursor

  cursor://anysphere.cursor-deeplink/mcp/install?name=smard-energy-prices-x402&config=eyJ1cmwiOiJodHRwczovL3NtYXJkLWVuZXJneS1wcmljZXMteDQwMi5mYXZvLndvcmtlcnMuZGV2L21jcCJ9Copy

  Open the link and Cursor adds the server at that address.

• ChatGPT

  https://smard-energy-prices-x402.favo.workers.dev/mcpCopy

  In Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.

• Codex

  codex mcp add smard-energy-prices-x402 --url 'https://smard-energy-prices-x402.favo.workers.dev/mcp'Copy

  Run it once, then sign in with codex mcp login smard-energy-prices-x402 if the server asks for an account.

From the project's README

As published by moldy93/smard-x402-mcp in README.md.

{
  "mcpServers": {
    "smard-x402": {
      "url": "https://smard-energy-prices-x402.favo.workers.dev/mcp",
      "headers": {
        "Accept": "application/json, text/event-stream"
      }
    }
  }
}

import { createWalletClient, http } from "viem";
import { base } from "viem/chains";
import { privateKeyToAccount } from "viem/accounts";
import { createPaymentHeader, selectPaymentRequirements } from "x402/client";

const url = "https://smard-energy-prices-x402.favo.workers.dev/prices";

// 1) Get payment requirements
const res = await fetch(url);
const data = await res.json();
const req = selectPaymentRequirements(data.accepts, "base", "exact");

// 2) Create payment header
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const client = createWalletClient({ account, chain: base, transport: http("https://mainnet.base.org") });
const xPayment = await createPaymentHeader(client, data.x402Version, req);

// 3) Call API with payment
const paid = await fetch(url, { headers: { "X-PAYMENT": xPayment } });
console.log(await paid.json());

Tools it offers (1)

What this server listed when Ahel dialed its public endpoint in Sep 2026, with no key and no account of yours. The names are the server’s own.

• smard_prices

Signals

Last commit

Feb 2026