{
  "protocol": "ucp",
  "version": "0.1",
  "merchant": {
    "name": "Gran Voyage Books",
    "domain": "granvoyagebooks.com",
    "contact_email": "contato@granvoyagebooks.com",
    "default_currency": "BRL",
    "default_language": "pt-BR"
  },
  "catalog": {
    "feed_url": "https://granvoyagebooks.com/api/public/products.json",
    "format": "gran-voyage.v1"
  },
  "mcp": {
    "url": "https://granvoyagebooks.com/mcp",
    "transport": "http",
    "auth": "none"
  },
  "cart": {
    "supported": false,
    "reason": "v1 uses redirect checkout via Stripe Payment Links. Multi-item cart coming in a later version."
  },
  "checkout": {
    "mode": "redirect",
    "provider": "stripe",
    "requires_human_confirmation": true,
    "description": "Agents may fetch a per-item Stripe URL via the MCP tool `start_checkout` (or read `checkout_url` from the products feed) and MUST present it to the human user for explicit confirmation. Agents must not attempt to complete payment on the user's behalf."
  },
  "fulfillment": {
    "mode": "digital",
    "delivery": "instant_email_delivery"
  },
  "policies": {
    "refund": "Reembolso disponível em até 7 dias após a compra conforme o Código de Defesa do Consumidor (compra à distância).",
    "support_email": "contato@granvoyagebooks.com"
  }
}