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x402 Utils – Cron Expression Explainer
x402
x402 Utils – Cron Expression Explainer is a paid API for AI agents from utils.kagurazaka.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).
Parses a cron expression (5 or 6 fields, with ranges, steps, L, W, #) into plain English and returns its next N scheduled run times in a specified time zone.
Price / call$0.001
Success—
StatusUnknown
How this service works
Explain a cron expression in plain English and list its next run times in a time zone (5 or 6 fields, with ranges, steps, L, W and #).
Output
A JSON object with a human-readable 'description' string explaining the cron expression (e.g. 'At 09:00, Monday through Friday') and a 'next' array of objects each containing a 'utc' ISO 8601 timestamp and a 'local' timestamp in the requested time zone, for the next N scheduled runs.
Example use cases
Verify a deployment schedule cron
“I've got a cron expression '30 2 * * 0' set up for our weekly deployment — can you explain what it means in plain English and show me the next 5 times it'll fire in UTC?”
Debug a complex cron with L-syntax
“What does '0 18 L * *' mean and when will it next run? Give me the next 10 occurrences in the Europe/London time zone.”
Confirm bi-weekly job timing for team
“Our data pipeline cron is '0 8 1,15 * *' — explain what that means and list the next 5 scheduled runs in America/Chicago so I can share it with the team.”
Technical details
Endpoint
GEThttps://utils.kagurazaka.dev/v1/cron?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to interpret or validate a cron schedule in human-readable form and preview its upcoming run times in a specific time zone. It supports advanced cron syntax (L, W, #, ranges, steps, 6-field expressions) that many basic parsers do not handle. Ideal for developer tools, scheduling dashboards, or any agent that needs to reason about or communicate a job's schedule to a non-technical user.
Side effects
- Invalid cron expression returns an error (malformed fields, unsupported syntax)
- Invalid IANA time zone string causes a parsing error
- count outside the 1-50 range may be rejected or clamped
- Missing required 'expr' query parameter returns an error
- Payment not included or insufficient results in HTTP 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"next": [
{
"utc": "2026-10-26T00:00:00.000Z",
"local": "2026-10-26T09:00:00"
}
],
"description": "At 09:00, Monday through Friday"
}
}Tags
x402
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