{
  "supported_versions": ["2026-04-08"],
  "services": {
    "dev.ucp.shopping": {
      "base_url": "https://mystore.com/ucp"
    }
  },
  "capabilities": {
    "dev.ucp.shopping.checkout": {
      "version": "2026-04-08",
      "supported_operations": ["create", "get", "update", "complete", "cancel"]
    }
  },
  "signing_keys": []
}

{
  "supported_versions": ["2026-04-08"],
  "services": {
    "dev.ucp.shopping": {
      "base_url": "https://mystore.com/ucp"
    },
    "dev.ucp.common": {
      "base_url": "https://mystore.com/ucp"
    }
  },
  "capabilities": {
    "dev.ucp.shopping.checkout": {
      "version": "2026-04-08",
      "supported_operations": ["create", "get", "update", "complete", "cancel"]
    },
    "dev.ucp.common.identity_linking": {
      "version": "2026-04-08"
    },
    "dev.ucp.shopping.order": {
      "version": "2026-04-08"
    }
  },
  "payment_handlers": [
    "com.stripe.payment",
    "com.adyen.payment"
  ],
  "signing_keys": [
    {
      "kid": "key-2026-04",
      "kty": "EC",
      "crv": "P-256",
      "x": "f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU",
      "y": "x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0",
      "use": "sig",
      "alg": "ES256"
    }
  ]
}

# 生成私钥
openssl ecparam -genkey -name prime256v1 -noout -out ucp-signing-key.pem

# 提取公钥
openssl ec -in ucp-signing-key.pem -pubout -out ucp-signing-key-pub.pem

# 导出JWK格式的公钥（需要jose工具或编程实现）
# kid自定义，建议包含日期如 key-2026-04

const express = require("express");
const app = express();

// UCP Profile
app.get("/.well-known/ucp", (req, res) => {
  res.set("Cache-Control", "public, max-age=3600");
  res.json({
    supported_versions: ["2026-04-08"],
    services: {
      "dev.ucp.shopping": {
        base_url: "https://mystore.com/ucp"
      }
    },
    capabilities: {
      "dev.ucp.shopping.checkout": {
        version: "2026-04-08",
        supported_operations: ["create", "get", "update", "complete", "cancel"]
      }
    },
    signing_keys: []
  });
});

// 商品搜索
app.get("/ucp/catalog/products", async (req, res) => {
  const { query, category, limit = 10, offset = 0 } = req.query;

  const products = await db.products.search({
    query, category,
    limit: Math.min(parseInt(limit), 50),
    offset: parseInt(offset)
  });

  res.json({
    products: products.map(p => ({
      id: p.id,
      name: p.name,
      description: p.description,
      brand: p.brand,
      price: { amount: p.priceInCents, currency_code: "CNY" },
      availability: p.stock > 0 ? "in_stock" : "out_of_stock",
      images: [{ url: p.imageUrl, alt: p.name }],
      url: `https://mystore.com/product/${p.slug}`
    })),
    total: products.totalCount,
    limit: parseInt(limit),
    offset: parseInt(offset)
  });
});

app.listen(3000);

{
  "payment_handlers": [
    "com.stripe.payment",
    "com.adyen.payment",
    "com.paypal.payment",
    "com.alipay.payment"
  ]
}

HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8
Cache-Control: public, max-age=3600
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000; includeSubDomains