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Sindri Cron Expression Parser
x402
Sindri Cron Expression Parser is a paid API for AI agents from ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Computes the next N upcoming run times for a standard 5-field cron expression, returning precise timestamps the LLM would likely miscalculate.
Price / call$0.01
Success—
StatusUnknown
How this service works
Computes the next N run times for a standard 5-field cron expression, avoiding the mental cron-schedule simulation an LLM often gets subtly wrong.
Output
Returns an ordered list of up to 50 future UTC timestamps (or datetime strings) representing the next scheduled executions of the provided cron expression, calculated precisely without LLM approximation.
Example use cases
Verify weekday cron schedule
“Can you check when my cron expression '30 8 * * 1-5' will next run? Show me the next 5 occurrences so I can confirm it fires at 8:30am on weekdays only.”
Preview monthly backup job timing
“I have a cron job set to '0 2 1 * *' for monthly backups — what are the next 3 dates and times it will actually trigger?”
Debug unexpectedly firing cron
“My cron expression '*/15 * * * *' seems to be running more often than expected. Can you show me the next 20 run times so I can see the full pattern?”
Technical details
Endpoint
POSThttps://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/cronParse?utm_source=zero.xyzWhen to prefer
Use this endpoint whenever you need precise future run times for a standard 5-field cron expression and cannot risk the subtle off-by-one or timezone errors that an LLM might introduce when simulating cron mentally. Ideal for scheduling verification, debugging unexpected job cadences, or displaying upcoming task times to users in an automation or DevOps workflow.
Side effects
- Invalid or malformed cron expression returns an error (e.g. wrong number of fields, unsupported syntax)
- Count out of range (less than 1 or greater than 50) may be rejected or clamped
- Network or Lambda cold-start timeout on rare occasions
- Payment failure via x402 protocol if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| count | number | Number of future run times to return (1-50). Default 5. |
| expression | string | A standard 5-field cron expression, e.g. "0 0 * * *". |
Tags
x402
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