{
  "endpoint": "POST /agentic_commerce/create_checkout",
  "description": "ACP Create Checkout - Initiate an agentic commerce checkout session",
  "spec_version": "2026-01-30",
  "spec_url": "https://github.com/agentic-commerce-protocol/agentic-commerce-protocol",
  "request": {
    "sku": "string - Product SKU or variant ID",
    "quantity": "number - Quantity to purchase",
    "customer": {
      "email": "string - Customer email",
      "shipping_address": "object - Shipping address"
    },
    "metadata": "object - Key-value pairs for correlation"
  },
  "response": {
    "checkout_id": "chk_demo_abc123",
    "status": "pending",
    "line_items": [
      {
        "sku": "GLOW-SERUM-001",
        "name": "Radiance Glow Serum",
        "quantity": 1,
        "unit_price": 8500,
        "currency": "usd"
      }
    ],
    "subtotal": 8500,
    "shipping": 500,
    "tax": 765,
    "total": 9765,
    "currency": "usd",
    "created_at": "2026-02-15T10:30:00Z",
    "expires_at": "2026-02-15T11:30:00Z"
  },
  "security": {
    "authentication": "Bearer token required",
    "hmac_signature": "X-ACP-Signature header for webhooks"
  },
  "demo": true
}