{
  "event": {
    "header": {
      "namespace": "Alexa.Discovery",
      "name": "Discover.Response",
      "payloadVersion": "3",
      "messageId": "Unique identifier, preferably a version 4 UUID"
    },
    "payload": {
      "endpoints": [
        {
          "endpointId": "Unique ID of the endpoint",
          "manufacturerName": "Manufacturer of the endpoint",
          "description": "Smart Thermostat by Thermostat Maker",
          "friendlyName": "Hallway Thermostat",
          "displayCategories": [
            "THERMOSTAT",
            "TEMPERATURE_SENSOR"
          ],
          "additionalAttributes": {
            "manufacturer": "Manufacturer of the endpoint",
            "model": "Model of the device",
            "serialNumber": "Serial number of the device",
            "firmwareVersion": "Firmware version of the device",
            "softwareVersion": "Software version of the device",
            "customIdentifier": "Optional custom identifier for the device"
          },
          "cookie": {},
          "capabilities": [
            {
              "type": "AlexaInterface",
              "interface": "Alexa.ThermostatController",
              "version": "3.2",
              "properties": {
                "supported": [
                  {
                    "name": "lowerSetpoint"
                  },
                  {
                    "name": "upperSetpoint"
                  },
                  {
                    "name": "thermostatMode"
                  },
                  {
                    "name": "adaptiveRecoveryStatus"
                  }
                ],
                "proactivelyReported": true,
                "retrievable": true
              },
              "configuration": {
                "supportedModes": [
                  "HEAT",
                  "COOL",
                  "AUTO",
                  "EM_HEAT"
                ],
                "supportsScheduling": true
              }
            },
            {
              "type": "AlexaInterface",
              "interface": "Alexa.TemperatureSensor",
              "version": "3",
              "properties": {
                "supported": [
                  {
                    "name": "temperature"
                  }
                ],
                "proactivelyReported": true,
                "retrievable": true
              }
            },
            {
              "type": "AlexaInterface",
              "interface": "Alexa.EndpointHealth",
              "version": "3.2",
              "properties": {
                "supported": [
                  {
                    "name": "connectivity"
                  }
                ],
                "proactivelyReported": true,
                "retrievable": true
              }
            },
            {
              "type": "AlexaInterface",
              "interface": "Alexa",
              "version": "3"
            }
          ]
        }
      ]
    }
  }
}