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Crontab Generate — Natural Language to Cron Expression Converter
x402
Crontab Generate — Natural Language to Cron Expression Converter is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054001/call, status unknown (last checked 2026-09-13).
Converts a natural language schedule description into a cron expression, or explains an existing cron expression, and returns next scheduled run times.
Price / call$0.054001
Success—
StatusUnknown
How this service works
Convert natural language schedule to cron expression, or explain an existing cron expression. Returns next run times.
Output
Returns a valid cron expression derived from the natural language input (or an explanation if a cron expression was provided), along with the next several scheduled run times so the user can verify correctness.
Example use cases
Automate compliance report scheduling
“I need to set up a job that runs our financial audit every first Monday of the month at 2 PM. Can you turn that into a cron expression and show me when it'll actually run?”
Configure CI/CD pipeline triggers
“Help me create a cron job that deploys our staging environment every Tuesday and Thursday at 11 PM, right before our team's morning standup. What's the cron syntax for that?”
Decode legacy schedule rules
“We inherited this cron expression from our previous DevOps team: `0 9 * * 1-5`. What does it actually do, and can you show me the next few times it'll execute?”
Technical details
Endpoint
GEThttps://api.strale.io/x402/crontab-generateWhen to prefer
Choose this endpoint when you need to programmatically convert a human-readable schedule description into a machine-executable cron expression, or when you need to explain/document what an existing cron expression does. Ideal for DevOps automation, CI/CD pipeline configuration, and helping non-technical users set up scheduled jobs without learning cron syntax.
Side effects
- Ambiguous or unparseable natural language schedule — returns error or best-guess cron with low confidence
- Invalid cron expression provided — returns parsing error
- Missing required 'description' query parameter — returns 400 bad request
- Overly complex or unsupported schedule patterns (e.g. 'last business day of month') may not convert accurately
Input
{
"description": "every weekday at 8:30am"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.054000000000000006,
"settlement_id": "0x23beb7b53cbff0bec49e8220c6b2feb744ad3d8314aaae6cd796b172342c7bc2"
},
"capability": "crontab-generate",
"latency_ms": 1936,
"provenance": {
"source": "claude-haiku",
"fetched_at": "2026-06-13T04:24:20.407Z"
}
},
"next_5_runs": [
"2024-01-08T08:30:00Z",
"2024-01-09T08:30:00Z",
"2024-01-10T08:30:00Z",
"2024-01-11T08:30:00Z",
"2024-01-12T08:30:00Z"
],
"timezone_note": "Times shown in UTC (Z). Adjust times based on your system timezone. Use TZ environment variable or cron configuration to set desired timezone.",
"human_readable": "Every weekday (Monday through Friday) at 8:30 AM",
"cron_expression": "30 8 * * 1-5",
"input_description": "every weekday at 8:30am"
}Tags
x402
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