---
name: cron-builder
description: "Cron Expression Builder (Cron Expression Builder) via devops.majbase.com's free public API, no key required. Keywords: cron expression generator, crontab builder, cron syntax helper."
---

# Cron Expression Builder

Cron Expression Builder. Calls devops.majbase.com's free public API — no API key or authentication required.

## Endpoint

```
GET/POST https://devops.majbase.com/cron-builder/api
```

## Request / Response

```
API: GET or POST /cron-builder/api
  cron=<string>    (required, e.g. "*/5 * * * *" or "0 9 * * MON")
  count=<int>      (optional, default 5, max 20) - how many next run times to include
Returns {"summary": str|None, "breakdown": {"minute", "hour",
"dayOfMonth", "month", "dayOfWeek"}, "next_runs": ["ISO 8601", ...]},
or {"error": "..."} on a malformed expression. Next-run times are
computed in this server's local time zone, starting from now.
```

## Example

```bash
curl -sS "https://devops.majbase.com/cron-builder/api" \
    --data-urlencode 'cron=0 9 * * 1-5' \
    --data-urlencode 'count=5'
```

## Notes

- No API key or authentication required.
- Full interactive tool: https://devops.majbase.com/cron-builder/