Control Chromecast with the Amazon Echo via HomeAssistant

configuration.yaml

alexa:
  intents:
    MediaPlayIntent:
      action:
        service: media_player.media_play
      speech:
        type: plaintext
        text: OK
    MediaPauseIntent:
      action:
        service: media_player.media_pause
      speech:
        type: plaintext
        text: OK
    MediaPlayPauseIntent:
      action:
        service: media_player.media_play_pause
      speech:
        type: plaintext
        text: OK
    MediaStopIntent:
      action:
        service: media_player.media_stop
      speech:
        type: plaintext
        text: OK
    MediaVolumeUpIntent:
      action:
        service: media_player.volume_up
      speech:
        type: plaintext
        text: OK
    MediaVolumeDownIntent:
      action:
        service: media_player.volume_down
      speech:
        type: plaintext
        text: OK
    MediaNextIntent:
      action:
        service: media_player.media_next_track
      speech:
        type: plaintext
        text: OK
    MediaPreviousIntent:
      action:
        service: media_player.media_previous_track
      speech:
        type: plaintext
        text: OK
    MediaOnIntent:
      action:
        service: media_player.turn_on
      speech:
        type: plaintext
        text: OK
    MediaOffIntent:
      action:
        service: media_player.turn_off
      speech:
        type: plaintext
        text: OK
    MediaToggleIntent:
      action:
        service: media_player.toggle
      speech:
        type: plaintext
        text: OK

IntentSchema.json

{
  "intents": [
    {
      "intent": "MediaPlayIntent",
      "slots": []
    },
    {
      "intent": "MediaPauseIntent",
      "slots": []
    },
    {
      "intent": "MediaPlayPauseIntent",
      "slots": []
    },
    {
      "intent": "MediaStopIntent",
      "slots": []
    },
    {
      "intent": "MediaVolumeUpIntent",
      "slots": []
    },
    {
      "intent": "MediaVolumeDownIntent",
      "slots": []
    },
    {
      "intent": "MediaNextIntent",
      "slots": []
    },
    {
      "intent": "MediaPreviousIntent",
      "slots": []
    },
    {
      "intent": "MediaOnIntent",
      "slots": []
    },
    {
      "intent": "MediaOffIntent",
      "slots": []
    },
    {
      "intent": "MediaToggleIntent",
      "slots": []
    }
  ]
}

SampleUtterances_en_GB.txt

MediaPlayIntent play
MediaPauseIntent pause
MediaStopIntent stop
MediaVolumeUpIntent up
MediaVolumeUpIntent louder
MediaVolumeDownIntent volume down
MediaVolumeDownIntent quieter
MediaNextIntent next
MediaPreviousIntent previous
MediaOnIntent on
MediaOffIntent off
MediaToggleIntent toggle