{
  "openapi": "3.1.0",
  "info": {
    "title": "Test Merchant API for AI Shopping Agents API",
    "description": "A mock storefront for developing and testing AI shopping agents against a realistic product catalog and purchase flow. Pre-launch design; endpoints are not live yet.",
    "version": "0.1.0",
    "x-planned-pricing": {
      "model": "free tier for evaluation, paid tiers by volume",
      "status": "planned; nothing charged before launch"
    }
  },
  "servers": [
    {
      "url": "https://openapiregistry.com/api/v1/ai-shopping-agent-sandbox",
      "description": "Pre-launch: endpoints are not live yet and answer 503."
    }
  ],
  "security": [
    {
      "ApiKeyAuth": []
    }
  ],
  "paths": {
    "/catalog": {
      "get": {
        "summary": "List the mock product catalog",
        "description": "Returns synthetic product data that an AI shopping agent can browse and select from.",
        "tags": [
          "ecommerce"
        ],
        "operationId": "ai-shopping-agent-sandbox-get-catalog",
        "parameters": [
          {
            "name": "category",
            "in": "query",
            "required": false,
            "description": "Optional filter to return products in a given category.",
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Product catalog returned.",
            "content": {
              "application/json": {
                "example": {
                  "products": [
                    {
                      "product_id": "p-1001",
                      "name": "Ergonomic Chair",
                      "category": "furniture",
                      "unit_price": 129.0
                    }
                  ]
                },
                "schema": {
                  "type": "object"
                }
              }
            }
          },
          "503": {
            "description": "Pre-launch: endpoints are not live yet."
          }
        }
      }
    },
    "/carts": {
      "post": {
        "summary": "Perform a cart action",
        "description": "Adds, updates or removes items in a mock cart and returns the running total.",
        "tags": [
          "ecommerce"
        ],
        "operationId": "ai-shopping-agent-sandbox-post-carts",
        "requestBody": {
          "required": true,
          "description": "The cart action and product to act on.",
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "action": {
                    "type": "string",
                    "description": "The operation to perform, for example add, update or remove."
                  },
                  "product_id": {
                    "type": "string",
                    "description": "The id of the product to act on."
                  },
                  "quantity": {
                    "type": "integer",
                    "description": "The quantity of the product for the action."
                  }
                }
              },
              "example": {
                "action": "add",
                "product_id": "p-1001",
                "quantity": 2
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Cart updated.",
            "content": {
              "application/json": {
                "example": {
                  "cart_id": "c-42",
                  "items": [
                    {
                      "product_id": "p-1001",
                      "name": "Ergonomic Chair",
                      "quantity": 2,
                      "unit_price": 129.0
                    }
                  ],
                  "total": 258.0
                },
                "schema": {
                  "type": "object"
                }
              }
            }
          },
          "404": {
            "description": "Product id not found in the mock catalog."
          },
          "503": {
            "description": "Pre-launch: endpoints are not live yet."
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "ApiKeyAuth": {
        "type": "apiKey",
        "in": "header",
        "name": "X-API-Key",
        "description": "Planned for launch: an API key issued on request. Free tier for evaluation, paid tiers by volume; nothing is charged before launch."
      }
    }
  }
}