Send push notifications from a Raspberry Pi

July 14, 2026 · 5 min read

Your Pi watches the temperature, the doorbell, the 3D printer. But how does it tell you? The classic answers – email, Telegram bots, MQTT dashboards – all need accounts, tokens or servers. A Webhooky endpoint needs one HTTPS POST.

The setup, once

Install the Webhooky app (Android / iOS) and create an endpoint, e.g. “Raspberry Pi”.
Copy your endpoint URL – it looks like https://api.webhooky.app/abc123…

That's the whole setup. No API key, no OAuth, no library – the secret is in the URL.

Python: two lines

import requests

requests.post("https://api.webhooky.app/YOUR_KEY", json={
    "title": "🌡️ Greenhouse alert",
    "message": f"Temperature dropped to {temp:.1f} °C",
})

Works with the requests package (pip install requests) on any Pi OS. title and message control what the notification says; add "sound": "buzzer" to pick one of 40 sounds per event.

Bash / cron: a one-liner

curl -X POST "https://api.webhooky.app/YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"title":"✅ Backup finished","message":"nightly rsync completed"}'

Handy in cron jobs – or as a failure alarm with the || operator:

0 3 * * * /home/pi/backup.sh || curl -X POST "https://api.webhooky.app/YOUR_KEY" \
  -d '{"title":"🚨 Backup FAILED","sound":"error_1"}'

Ideas from real Pi projects

Doorbell / motion sensor: GPIO pin triggers → push with a doorbell sound.
3D printer done: OctoPrint's event hooks can call your endpoint directly.
Temperature / humidity: alert when the greenhouse, server closet or terrarium leaves its range.
Watchdog: a systemd OnFailure= unit that POSTs when a service dies.

Why not just use email or Telegram?

You can – but email is slow and silent, and a Telegram bot means tokens, chat IDs and another app's notification settings. A Webhooky push arrives in about a second, with its own sound per endpoint, and the history of all events lives in the app.

Get Webhooky

Free for your first 100 notifications – set up your endpoint in two minutes.