# QuietPulse

> Heartbeat monitoring for cron jobs — get notified when scheduled tasks stop running.

## What is it?

QuietPulse is a simple heartbeat monitoring service. Add a `curl` call to your cron jobs, scripts, or scheduled tasks. If a job doesn't "check in" on time, you get a Telegram alert.

## Why?

Cron runs silently. It doesn't tell you when a job fails to start, hangs, or produces the wrong output. Uptime monitors check if your server is alive — but not if your jobs ran. Heartbeat monitoring closes that gap: one line in your script, instant alerts when something goes missing.

## How it works

1. Create a job in the QuietPulse dashboard
2. Copy the heartbeat URL for that job
3. Add `curl -fsS https://quietpulse.xyz/api/heartbeat/<token>` to your script
4. If the ping doesn't arrive within the expected window → Telegram alert

## Key features

- **HTTP heartbeat** — single `curl` command, no SDK
- **Telegram alerts** — instant notifications, no email servers
- **No infrastructure** — paste a URL, that's it
- **Free plan** — 2 jobs, 1h minimum interval
- **Crypto payments** — NOWPayments (for regions without Stripe)

## Pricing

| Plan    | Max Jobs | Min Interval | Price  |
|---------|----------|-------------|--------|
| FREE    | 2        | 1h          | $0     |
| STARTER | 20       | 5min        | $7/mo  |
| UNLIMITED | ∞     | 1min        | $25/mo |

## API

**Send a heartbeat**
- `GET https://quietpulse.xyz/api/heartbeat/<token>`
- Returns HTTP 200

Each job gets a unique token on creation.

## Stack

- Frontend: Angular 21 (SSR)
- Backend: NestJS
- Database: SQLite (Prisma)
- Hosting: DigitalOcean (Frankfurt)

## Links

- Website: https://quietpulse.xyz
- Blog: https://quietpulse.xyz/blog
- Pricing: https://quietpulse.xyz/pricing
- Documentation: https://quietpulse.xyz/docs
- GitHub: https://github.com/vadyak/quietpulse

## Blog posts

- [Heartbeat Monitoring for Cron Jobs Explained](https://quietpulse.xyz/blog/heartbeat-monitoring-cron-jobs-explained)
- [How to Detect if a Cron Job Is Not Running](https://quietpulse.xyz/blog/how-to-detect-if-a-cron-job-is-not-running)
- [Cron Job Failed Silently? Here's How to Actually Detect It](https://quietpulse.xyz/blog/cron-job-failed-silently-how-to-detect-it)
- [Cron Job Monitoring Best Practices](https://quietpulse.xyz/blog/cron-job-monitoring-best-practices)
- [How to Monitor Cron Jobs (and Stop Silent Failures)](https://quietpulse.xyz/blog/how-to-monitor-cron-jobs-and-stop-silent-failures)
- [Telegram Alerts for Cron Job Monitoring: A Practical Guide](https://quietpulse.xyz/blog/telegram-alerts-for-cron-job-monitoring)
- [GitHub Actions Monitoring: How to Get Alerts When Cron Jobs Fail](https://quietpulse.xyz/blog/github-actions-monitoring-cron-fail-alerts)
- [Monitor Cron Jobs with n8n and QuietPulse](https://quietpulse.xyz/blog/monitor-cron-jobs-with-n8n-and-quietpulse)
- [How to Detect Missed Cron Jobs in Production](https://quietpulse.xyz/blog/detect-missed-cron-jobs-in-production)

## Use cases

- Database backup monitoring
- Data export/sync jobs
- Payment reconciliation
- Report generation
- GitHub Actions scheduled workflows
- n8n automation flows
- Any periodic script that must run on time