Know when a cron job doesn't run.

Add two curl calls around a command in your crontab. If a run fails, or doesn't start or finish on time, CronDrive emails you or posts to Slack.

Five minutes late, in your inbox and on Slack

CronDrive 03:05

Not started: "Nightly backup"

The job "Nightly backup" has not yet been reported as started.

alerts 03:05

CronDrive App

The job "Nightly backup" has not yet been reported as started.

See the job history

Also on Discord Microsoft Teams Google Chat Telegram ntfy PagerDuty your own URL

minute

hour

day

month

weekday


        curl -fsS https://job.crondrive.com/uG2Exw/start/$$;

tells CronDrive it started


        backup.sh

your command


        ; curl -fsS https://job.crondrive.com/uG2Exw/end/$?/$$

tells CronDrive it finished, with its exit code

Or let your AI agent set it up

CronDrive has an MCP server. Claude Code, Cursor or Codex read your crontab, create a job for each line and add the calls, and you approve the new crontab before anything changes.

Later, ask it about your jobs, like why one failed last night.

claude mcp add --transport http --scope user crondrive https://crondrive.com/mcp

Other agents, and Claude or ChatGPT

Monitor the cron jobs of this server with CronDrive.
crontab -l 3 jobs, in America/Santiago
create_job Nightly backup
create_job Database vacuum
create_job Invoice emails
The jobs start paused. Here is the new crontab: shall I install it?
Yes
resume_job ×3
Done. CronDrive will alert you when one of them fails or doesn't run.

Every run, on the record

Each job keeps a timetable of its runs: when it was due, when it started and finished, and the alerts sent when it didn't.

Nightly backup

Monitoring 0 3 * * * Every day at 03:00 America/Santiago

Times in America/Santiago.

Due	Started	Finished	Took
Sat 24 Oct, 03:00	03:00	03:11	11 min	On time Started 03:00, finished 03:11, took 11 min.
Fri 23 Oct, 03:00				Didn't run Alerts sent at 03:05 and 04:00.
Thu 22 Oct, 03:00	03:00	03:14	14 min	On time Started 03:00, finished 03:14, took 14 min.
Wed 21 Oct, 03:00	03:00	03:12	12 min	On time Started 03:00, finished 03:12, took 12 min.

Set it up in three steps

1

Create a job

Give it the same cron expression and time zone as in your server.
2

Add the calls to your crontab

Copy the line from the job page; it already has your token.
3

Turn on monitoring

Choose how long to wait before an alert. Connect Slack if your team lives there.

Pricing

Free

Up to 15 jobs
Alerts by email, Slack and up to 3 more channels, like Discord, Telegram, Teams or PagerDuty
AI agents, through MCP

Pro

$9 /month

or $90 a year: two months free

Up to 50 jobs
Alerts by email, Slack and up to 10 more channels, like Discord, Telegram, Teams or PagerDuty
The output of each run, in the history and in the alerts

Coming soon

Prices in US dollars. Taxes may be added depending on your country. Payments are processed by Paddle.

Check a cron expression

See what an expression means and when it runs next, in your time zone.

Don't find out from a missing backup.

Free for up to 15 jobs, with alerts by email and Slack. No credit card.