home-assistant.io/source/_integrations/matrix.markdown

title	description	ha_category	ha_iot_class	ha_release	ha_domain	ha_platforms	ha_integration_type	ha_codeowners	related	ha_quality_scale
Matrix	Matrix chatbot support	Hub Notifications	Cloud Push	0.69	matrix	notify	integration	@PaarthShah	docs title /docs/configuration/ Configuration file	legacy

This {% term integration %} allows you to send messages to matrix rooms, as well as to react to messages in matrix rooms. Reacting to commands is accomplished by firing an event when one of the configured commands is triggered.

There is currently support for the following device types within Home Assistant:

• Notifications

Configuration

To enable the Matrix {% term integration %}, add it to your {% term "configuration.yaml" %} file. {% include integrations/restart_ha_after_config_inclusion.md %}

# Example configuration.yaml entry
matrix:
  homeserver: https://matrix.org
  username: "@my_matrix_user:matrix.org"
  password: supersecurepassword
  rooms:
    - "#hasstest:matrix.org"
  commands:
    - word: my_command
      name: my_command

{% configuration %} username: description: "The matrix username that Home Assistant should use to log in. Note: You must specify a full matrix ID here, including the homeserver domain, e.g., '@my_matrix_bot:matrix.org'. Please note also that the '@' character has a special meaning in YAML, so this must always be given in quotes." required: true type: string password: description: The password for your Matrix account. required: true type: string homeserver: description: "The full URL for your homeserver. If you use the default matrix.org homeserver, this is 'https://matrix.org'." required: true type: string verify_ssl: description: Verify the homeservers certificate. required: false type: string default: true rooms: description: "The list of rooms that the bot should join and listen for commands (see below) in. While you can limit the list of rooms that a certain command applies to on a per-command basis (see below), you must still list all rooms here that commands should be received in. Rooms can be given either by their internal ID (e.g., '!cURbafjkfsMDVwdRDQ:matrix.org') or any of their aliases (e.g., '#matrix:matrix.org')." required: false type: [string] default: empty commands: description: "A list of commands that the bot should listen for. If a command is triggered (via its word or expression, see below), an event is fired that you can handle using automations. Every command consists of these possible configuration options:" required: false type: map default: empty keys: word: description: "Specifies a word that the bot should listen for. If you specify 'my_command' here, the bot will react to any message starting with '!my_command'." required: false type: string expression: description: "Specifies a regular expression (in Python regexp syntax) that the bot should listen to. The bot will react to any message that matches the regular expression." required: false type: string name: description: "The name of the command. This will be an attribute of the event that is fired when this command triggers." required: true type: string rooms: description: "A list of rooms that the bot should listen for this command in. If this is not given, the rooms list from the main configuration is used. Please note that every room in this list must also be in the main room configuration." required: false type: [string] default: empty {% endconfiguration %}

{% warning %} In order to prevent infinite loops when reacting to commands, you have to use a separate account for the Matrix integration. {% endwarning %}

Event data

If a command is triggered, a matrix_command event is fired. The event contains the name of the command in the name field.

If the command is a word command, the data field contains a list of the command's arguments, i.e., everything that stood behind the word, split at spaces. If the command is an expression command, the data field contains the group dictionary of the regular expression that matched the message.

Comprehensive Configuration Example

This example also uses the matrix notify platform.

{% raw %}

# The Matrix integration
matrix:
  homeserver: https://matrix.org
  username: "@my_matrix_user:matrix.org"
  password: supersecurepassword
  rooms:
    - "#hasstest:matrix.org"
    - "#someothertest:matrix.org"
  commands:
    - word: testword
      name: testword
      rooms:
        - "#someothertest:matrix.org"
    - expression: "My name is (?P<name>.*)"
      name: introduction

notify:
  - name: matrix_notify
    platform: matrix
    default_room: "#hasstest:matrix.org"

automation:
  - alias: "React to !testword"
    triggers:
      - trigger: event
        event_type: matrix_command
        event_data:
          command: testword
    actions:
      - action: notify.matrix_notify
        data:
          message: "It looks like you wrote !testword"

  - alias: "React to an introduction"
    triggers:
      - trigger: event
        event_type: matrix_command
        event_data:
          command: introduction
    actions:
      - action: notify.matrix_notify
        data:
          message: "Hello {{trigger.event.data.args['name']}}"

{% endraw %}

This configuration will:

• Listen for "!testword" in the room "#someothertest:matrix.org" (and only) there. If such a message is encountered, it will answer with "It looks like you wrote !testword" into the "#hasstest:matrix.org" channel.
• Listen in both rooms for any message matching "My name is " and answer with "Hello " into "#hasstest:matrix.org".

Notifications

The matrix platform allows you to deliver notifications from Home Assistant to a Matrix room. Rooms can be both direct as well as group chats.

To enable Matrix notifications in your installation, you first need to configure the Matrix integration. Then, add the following to your {% term "configuration.yaml" %} file:

# Example configuration.yaml entry
notify:
  - name: NOTIFIER_NAME
    platform: matrix
    default_room: ROOM_ID_OR_ALIAS

{% configuration %} name: description: Setting the optional parameter name allows multiple notifiers to be created. The notifier will bind to the notify.NOTIFIER_NAME action. required: false default: notify type: string default_room: description: The room all messages will be sent to, when no other target is given. required: true type: string {% endconfiguration %}

The target room has to be precreated, the room id can be obtained from the rooms settings dialog. Rooms by default have a canonical id of the form "!<randomid>:homeserver.tld", but can also be allocated aliases like "#roomname:homeserver.tld". Make sure to use quotes around the room id or alias to escape special characters (!, and #) in YAML. The notifying account may need to be invited to the room, depending on the individual rooms policies.

To use notifications, please see the getting started with automation page.

Message formats

Matrix supports sending messages using a limited HTML subset. To specify the message format, add it in the notification data.

Supported formats are: text (default), and html.

# Example of notification as HTML
actions:
  - action: notify.matrix_notify
    data:
      message: >-
        <h1>Hello, world!</h1>
      data:
        format: "html"

Images in notification

It is possible to send images with notifications. To do so, add a list of paths in the notification data.

# Example of notification with images
actions:
  - action: notify.matrix_notify
    data:
      message: "Test with images"
      data:
        images:
          - /path/to/picture.jpg

{% important %} If you need to include a file from an external folder in your notifications, you will have to list the source folder as allowed.

configuration.yaml
...
homeassistant:
  allowlist_external_dirs:
    - /tmp

{% endimportant %}