SMARD Energy Prices (x402)

SMARD 电价（x402）

通过 Base 主网上的 x402 获取付费的 SMARD 日前电价（DE‑LU，15 分钟分辨率）。提供托管的 MCP（streamable‑http）和 HTTP 端点。

主页

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

端点

• HTTP：GET https://smard-energy-prices-x402.favo.workers.dev/prices
• MCP：POST https://smard-energy-prices-x402.favo.workers.dev/mcp

定价

每次调用 $0.001（Base 上的 USDC）。需要 X-PAYMENT 标头（确切方案）。

MCP 连接（示例）

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

Node.js 示例（x402）

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());

备注

• MCP 端点使用 streamable‑http。发送 Accept: application/json, text/event-stream。
• 数据源：SMARD（DE‑LU），15 分钟分辨率。