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Cron Expression Parser & Next-Run Calculator
x402
Cron Expression Parser & Next-Run Calculator is a paid API for AI agents from x402.forgemesh.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Validates a cron expression and returns the next 1–20 scheduled run times as ISO 8601 timestamps in any IANA timezone.
Price / call$0.002
Success—
StatusUnknown
How this service works
Cron parser API: validate a cron expression and get its next 1-20 run times as ISO timestamps in any timezone. Instantly answers 'when will this fire?' for scheduler-building, automation, and DevOps agents. Invalid expressions return a clear unpaid 400.
Output
Returns an ordered list of the next N ISO 8601 timestamps (up to 20) when the cron expression would fire, in the requested IANA timezone. Invalid expressions return a 400 error with a clear explanation.
Example use cases
Example prompt
“Can you validate the cron expression '*/15 9-17 * * 1-5' and show me the next 10 times it will fire, in America/New_York timezone?”
Technical details
Endpoint
POSThttps://x402.forgemesh.io/cron-next-runsWhen to prefer
Use this endpoint when an agent needs to validate a cron expression, preview upcoming scheduled run times, or help users build or debug cron-based automations. Ideal for DevOps workflows, scheduler UIs, or any agent that needs to answer 'when will this job next run?' without running a cron engine locally.
Side effects
- Invalid cron expression syntax returns a 400 error with a descriptive message
- Unsupported or misspelled IANA timezone string causes a 400 error
- Count value out of range (e.g. greater than 20 or non-numeric) causes a 400 error
- Payment not included or invalid results in a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| count | string | how many runs, default 5 |
| timezone | string | IANA tz, default UTC |
| expression | string | cron expression, e.g. */15 9-17 * * 1-5 |
Output
Schema · Response
{
"type": "json",
"example": {
"next_runs": [
"2026-07-16T13:00:00.000Z",
"2026-07-17T13:00:00.000Z",
"2026-07-20T13:00:00.000Z"
]
}
}Tags
x402
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