{
  "openapi": "3.0.0",
  "info": {
    "title": "Petstore API",
    "version": "2.1.0",
    "description": "Sample Petstore API for demonstration",
    "contact": {
      "name": "Petstore Team",
      "email": "support@petstore.io"
    },
    "termsOfService": "https://petstore.io/terms"
  },
  "servers": [
    { "url": "https://api.petstore.io/v2" }
  ],
  "tags": [
    { "name": "Pets", "description": "Everything about your pets" }
  ],
  "paths": {
    "/pets": {
      "get": {
        "operationId": "listPets",
        "summary": "List all pets",
        "tags": ["Pets"],
        "parameters": [
          {
            "name": "limit",
            "in": "query",
            "required": false,
            "schema": { "type": "integer" }
          }
        ],
        "responses": {
          "200": { "description": "A list of pets" }
        }
      }
    },
    "/pets/{petId}": {
      "get": {
        "operationId": "getPetById",
        "summary": "Get a pet by ID",
        "tags": ["Pets"],
        "parameters": [
          {
            "name": "petId",
            "in": "path",
            "required": true,
            "schema": { "type": "integer" }
          }
        ],
        "responses": {
          "200": { "description": "Pet details" },
          "404": { "description": "Pet not found" }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "ApiKeyAuth": {
        "type": "apiKey",
        "in": "header",
        "name": "X-API-KEY"
      }
    }
  }
}