If you want to have an overview of server updates in your K2 artifacts. You can create a REST service instance using the following swagger. Please be aware to publish this swagger to a public endpoint if you want to consume it from K2 Cloud. Also, replace the host with you K2 Cloud environment:

{
  "swagger": "2.0",
  "info": {
    "title": "K2updates",
    "description": "API to find the latest server updates on your K2 Cloud environment.",
    "version": "1.0.0"
  },
  "host": ">YOUR.K2.ENV.ID].onk2.com",
  "schemes":  
    "https"
  ],
  "paths": {
    "/autodiscover/updates": {
      "get": {
        "tags":  
          "Autodiscover"
        ],
        "description": "Server updates",
        "operationId": "ServerUpdates",
        "produces":  
          "application/json"
        ],
        "parameters":  
          {
            "name": "top",
            "in": "query",
            "description": "",
            "required": false,
            "type": "integer",
            "format": "int32"
          }
        ],
        "responses": {
          "200": {
            "description": "OK",
            "schema": {
              "$ref": "#/definitions/K2AutoDiscover"
            },
            "examples": {}
          }
        },
        "security":  ]
      }
    }
  },
  "definitions": {
    "ServerUpdate": {
      "description": "Model for ServerUpdate",
      "required":  
        "DateImplemented"
      ],
      "properties": {
        "DateImplemented": {
          "type": "string",
          "format": "date-time",
          "x-example": "20*personal details removed*T19:24:12"
        },
        "TfsNumber": {
          "type": "string",
          "x-example": "Unknown"
        },
        "TicketNumber": {
          "type": "string",
          "x-example": "Unknown"
        },
        "UpdateName": {
          "type": "string",
          "x-example": "K2 Cloud Update 5 FP9"
        },
        "VersionOfK2Patched": {
          "type": "string",
          "x-example": "PVM-05826921: K2 (5.1005.1000.0)"
        }
      }
    },
    "K2AutoDiscover": {
      "description": "Model for K2 Auto Discover",
      "required":  
        "ServerUpdates"
      ],
      "properties": {
        "ServerUpdates": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/ServerUpdate"
          }
        }
      }
    }
  },
  "securityDefinitions": {},
  "security":  ],
  "tags":  
    {
      "name": "Autodiscover",
      "description": "Operations about Autodiscover"
    }
  ],
  "produces":  
    "application/json"
  ],
  "consumes":  
    "application/json"
  ]
}