agent402.tools Cron Next Run Calculator

x402

agent402.tools Cron Next Run Calculator is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Parses a 5-field cron expression and returns the next N scheduled run times in UTC

Price / call$0.001

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StatusUnknown

How this service works

Parse a 5-field cron expression and return the next N run times (UTC).

Output

A list of up to 20 upcoming UTC timestamps representing when the cron expression will next trigger, starting from the specified or current time.

Example use cases

Example prompt

“What are the next 10 times this cron expression will run: '0 9 * * 1-5' starting from now?”

Technical details

Endpoint

POSThttps://agent402.tools/api/cron-next

When to prefer

Use this endpoint when you need to quickly preview or validate when a cron job will next execute without running a scheduler locally. Ideal for agents that need to confirm scheduling logic before deploying a job, audit existing cron configurations, or communicate human-readable next-run times to users. Prefer this over general-purpose compute when you specifically need cron expression evaluation with UTC output.

Side effects

Invalid cron expression returns a 4xx error with a parse error message
Count out of range (less than 1 or greater than 20) may return an error or be clamped
Malformed start time (non-ISO, non-epoch) may fail to parse and return an error
Missing required 'expr' field returns a validation error
Payment not included or insufficient results in 402 Payment Required

Input

Schema · Request body

Field	Type	Description
expr	string	5-field cron: minute hour day-of-month month day-of-week
from	—	Start time (epoch/ISO, default now)
count	number	How many upcoming runs (1-20, default 5)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "expr": "*/15 9-17 * * 1-5",
    "next": [
      "2026-06-11T09:00:00.000Z"
    ]
  }
}

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Technical details

Endpoint

POSThttps://agent402.tools/api/cron-next

When to prefer

Side effects

Invalid cron expression returns a 4xx error with a parse error message
Count out of range (less than 1 or greater than 20) may return an error or be clamped
Malformed start time (non-ISO, non-epoch) may fail to parse and return an error
Missing required 'expr' field returns a validation error
Payment not included or insufficient results in 402 Payment Required

Input

Schema · Request body

Field	Type	Description
expr	string	5-field cron: minute hour day-of-month month day-of-week
from	—	Start time (epoch/ISO, default now)
count	number	How many upcoming runs (1-20, default 5)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "expr": "*/15 9-17 * * 1-5",
    "next": [
      "2026-06-11T09:00:00.000Z"
    ]
  }
}