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Cron Next 5-3: Next 3 UTC Execution Times for 5-Field Cron Expression
x402
Cron Next 5-3: Next 3 UTC Execution Times for 5-Field Cron Expression is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).
Given a 5-field cron expression and an optional start datetime, returns the next 3 UTC scheduled execution times
Price / call$0.003
Success—
StatusUnknown
How this service works
Call when an agent needs the next 3 UTC times for a 5-field cron expression. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/cron-next-5-3 first.
Output
Returns a list of the next 3 UTC datetime strings representing the upcoming scheduled execution times for the given 5-field cron expression, computed from the provided start time (or current time if omitted).
Example use cases
Verify cron schedule before deployment
“I'm about to deploy a job with cron expression '30 2 * * *' — can you tell me the next 3 times it will run in UTC starting from right now, so I can confirm the schedule looks right?”
Debug an unexpected cron trigger time
“My scheduled task uses the expression '0 0 1 * *' and I think it might be running at the wrong time. Starting from 2025-07-01T00:00:00Z, what are the next 3 UTC execution times?”
Plan around a recurring batch job
“Our weekly report job runs on cron '0 6 * * 0'. Starting from 2025-08-10T00:00:00Z, what are the next 3 UTC times it will trigger so we can plan our review meetings around it?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/cron-next-5-3?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pure-compute cron schedule calculator that returns the next 3 UTC execution times for a standard 5-field cron expression, especially in agentic pipelines that need to reason about upcoming job schedules without spinning up a full scheduling library. Prefer the free sandbox endpoint (/v1/sandbox/cron-next-5-3) for development/testing; use this paid endpoint in production when the sandbox is unavailable or rate-limited.
Side effects
- Invalid cron expression (wrong number of fields, unsupported syntax) returns an error
- Malformed or non-ISO8601 'from' datetime triggers a validation error
- Expression with no future matches (e.g., Feb 30) may return an error or empty result
- Payment failure or insufficient USDC balance results in HTTP 402 rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| from | string | ISO datetime to count forward from. Omit it to start at the current time. |
| expression | string | Cron expression. The route says whether it is 5 fields or 6 fields. Example: 0 9 * * 1-5. |
Tags
x402
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