Ntfy

Lightweight push notification service for scripts, servers and applications, usable from HTTP, CLI, web or mobile.

Ntfy lets you send notifications from a script, server, application or automation tool, then receive them in a web interface, mobile app or compatible client. It is useful for simple alerts without deploying a heavy notification platform.

The service is based on ntfy, a free software project that keeps the model simple: publish a message to a topic and subscribe to that topic from another device or tool.

• Receive simple alerts from scripts or servers.
• Use HTTP, CLI, web or mobile clients.
• Keep notifications easy to integrate in automation.
• Avoid relying on a proprietary push notification stack for simple needs.

• Publish messages to topics with HTTP requests.
• Subscribe from web, mobile apps, CLI or API clients.
• Use priorities, tags and attachments depending on the client and configuration.
• Integrate with monitoring, backup and automation scripts.

• You pick a topic, which acts as a notification channel.
• You publish a message to that topic with an HTTP request or via the ntfy client.
• Subscribers to the topic then receive the notification on the web, on mobile or via a subscription API.
• On an open service, the topic effectively acts as a secret: it is best to choose a name that is hard to guess.
• Depending on the instance configuration, some topics may also be protected by authentication or access rules.

• Backup or cron job notifications.
• Monitoring alerts from a server.
• Small automation messages from scripts.
• Simple push notifications between devices.

Ntfy can be used very simply from a script, terminal or application. The principle stays the same: publish a message to a topic, then subscribe to it from the client of your choice.

• curl -d "Backup completed" https://ntfy.hostux.net/my-topic
• curl -H "Title: Backup" -H "Priority: high" -d "Backup failed" https://ntfy.hostux.net/my-topic
• ntfy publish my-topic "Deployment finished"
• curl -s https://ntfy.hostux.net/my-topic/json
• curl -s https://ntfy.hostux.net/my-topic/sse

This service integrates well with uses such as backup notifications, scheduled-task alerts, change detection on a website or messages sent by an automation tool.

The ntfy ecosystem also documents concrete integrations with tools like Changedetection.io, Watchtower, GitHub Actions, Node-RED, Home Assistant or Uptime Kuma, depending on your usage.

Service: ntfy.hostux.net

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