{
  "openapi": "3.1.0",
  "info": {
    "title": "Chess4pro Commerce API",
    "version": "1.0.0",
    "description": "Autonomous commerce API for Chess4pro with MPP payment discovery."
  },
  "servers": [
    {
      "url": "https://chess4pro.online"
    }
  ],
  "x-service-info": {
    "categories": [
      "ecommerce",
      "chess"
    ]
  },
  "paths": {
    "/cart/add.js": {
      "post": {
        "summary": "Add product to cart",
        "operationId": "addToCart",
        "responses": {
          "200": {
            "description": "Item added to cart"
          }
        },
        "x-payment-info": {
          "intent": "charge",
          "method": "card",
          "amount": 23.0,
          "currency": "USD",
          "description": "Opening repertoire ceramic mug purchase"
        }
      }
    },
    "/checkout": {
      "post": {
        "summary": "Create checkout session",
        "operationId": "createCheckout",
        "responses": {
          "200": {
            "description": "Checkout session created"
          }
        },
        "x-payment-info": {
          "intent": "session",
          "method": "stripe",
          "amount": 23.0,
          "currency": "USD",
          "description": "Autonomous buyer-approved checkout session"
        }
      }
    }
  }
}