Get a push notification when someone signs up

To get a push notification when someone signs up, send one request to your Hook.Notifier URL the moment a user is created. Add it to your signup code, or point your auth provider's webhook at it. That is the whole thing.

curl "https://hooknotifier.com/{IDENTIFIER}/{KEY}?object=New%20signup&body=Someone%20just%20created%20an%20account"

From your own signup code

If your app handles signup, add one line right after you create the user.

await createUser(data)

await fetch("https://hooknotifier.com/{IDENTIFIER}/{KEY}", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    object: "New signup",
    body: `${data.email} just joined`,
  }),
})

That is it. Every new account now pings your phone.

From your auth provider (no code)

If you use Clerk, Supabase, Auth0 or anything that sends webhooks, you do not need to touch your code.

1. Open your provider's webhook settings.
2. Add your Hook.Notifier URL as the endpoint: https://hooknotifier.com/{IDENTIFIER}/{KEY}
3. Pick the user.created event.

The next signup lands on your phone.

Make it say who signed up

Auth providers post the full user object as raw JSON. Create a dedicated hook in Dashboard → Hooks, use its URL as the webhook endpoint, and set a payload template with paths resolved against that JSON. With a Supabase webhook on your users table:

• objectTemplate: New signup
• bodyTemplate: {{record.email}} just joined

The paths depend on your provider's payload, so check one sample event and pick the fields you want. Set the hook's defaults too, like a signups tag and a color, and every new user files into its own folder in the inbox. No code, no Zapier.

First get your URL

Your Hook.Notifier URL is https://hooknotifier.com/{IDENTIFIER}/{KEY}. Create a free account to get yours, then paste it wherever a webhook is asked for.

Why bother

The first signups of anything you build are a rush. You want to feel them, not discover them the next morning in a dashboard. A notification the moment it happens keeps you close to your users, and it takes a minute to set up.

Want the full picture of how notifications work? Read how to send yourself a native push notification.