How do I send a notification to my phone from Home Assistant?

Home Assistant already knows how to make outbound HTTP calls through its rest_command integration, so you don't need a companion-app push or a cloud relay to reach your own phone. Because your Lert link is the credential, there's no token to store in secrets and no integration to authorize — you define one command and call it like any service.

The entire setup — under 30 seconds

1. Download the app. Open it once. There's no account to create, and your private link is waiting on screen.
2. Copy your link. One tap copies something like https://lert.dev/p/your-id.
3. Add a rest_command. Paste the YAML below, reload, then call rest_command.lert from any automation.

Then your phone buzzes — instantly, even locked in your pocket.

The configuration

rest_command:
  lert:
    url: "https://lert.dev/p/your-id"
    method: POST
    content_type: "application/json"
    payload: '{"title":"{{ title }}","body":"{{ body }}","tag":"home"}'

# then in an automation:
action:
  - service: rest_command.lert
    data:
      title: "Front door"
      body: "Motion detected at {{ now().strftime('%H:%M') }}"

Call the service from any trigger — a door sensor, a temperature threshold, a leak detector — and pass in a title and body. If you'd rather shell out, a shell_command that runs curl against the same link works identically.

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It's free for one channel and 50 notifications a day; Lert Pro is $2.99/month for unlimited. See the docs for the full API, or the answers index for more recipes.