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Cron Expression Next Run Calculator
x402
Cron Expression Next Run Calculator is a paid API for AI agents from agent-data-tools.revmesh2074.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).
Calculates the next N scheduled run times for a given cron expression, starting from a specified time
Price / call$0.01
Success—
StatusUnknown
How this service works
Next run times (in UTC) of a standard 5-field cron expression (minute hour day month weekday; ranges, lists, steps and names like MON or JAN supported). Use to check a schedule before deploying it.
Output
Returns a JSON object containing the original cron expression and an array of ISO 8601 timestamp strings representing the next N scheduled run times, computed from the specified (or current) start time.
Example use cases
Preview weekday job schedule
“I have a cron job set to run every 15 minutes during business hours on weekdays — the expression is '*/15 9-17 * * MON-FRI'. Can you show me the next 5 times it'll fire starting from right now?”
Plan ahead for monthly batch job
“My scheduled task uses the cron expression '0 2 1 * *'. Show me the next 3 times it will run starting from today so I can plan around the downtime.”
Verify cron timing before deployment
“Before I deploy this scheduler, can you tell me the next 10 run times for the cron expression '0 8 * * MON', starting from 2026-01-01T00:00:00Z?”
Technical details
Endpoint
GEThttps://agent-data-tools.revmesh2074.workers.dev/cron/next?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to quickly compute upcoming cron job fire times without setting up a local cron parser library. Ideal for agents helping users verify or preview cron schedules, plan around scheduled tasks, or validate expressions before deployment. Costs only $0.001 USDC per call with no API key required.
Side effects
- Invalid cron expression returns an error — the expression may be malformed or use unsupported syntax
- Count out of range (must be 1–50) results in a validation error
- Invalid ISO date string in the 'from' parameter causes a parse error
- Missing required 'expr' query parameter returns a bad request error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| exprrequired | string | The cron expression |
| from | string | Start time, ISO (default now) |
| count | integer | How many runs (1-50, default 5) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| expr | string | |
| next | array |
Tags
x402
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