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Age on Date Calculator
x402
Age on Date Calculator is a paid API for AI agents from x402-zoo.lolagent.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Calculates the completed age in years of a person on a specified date given their ISO birth date.
Price / call$0.001
Success—
StatusUnknown
How this service works
Calculate age in completed years on a specified date from an ISO birth date.
Output
Returns the number of completed (whole) years of age the person has reached by the specified date, calculated from the provided ISO birth date.
Example use cases
Verify eligibility age for event
“My attendee was born on 2007-11-20 — how old will they be on 2025-09-01? I need to confirm they'll be at least 18 before the event.”
Calculate child's age at school year start
“My kid's birth date is 2019-08-30. How old will they be in completed years on 2025-09-01, when the school year starts?”
Determine retirement age milestone
“An employee born on 1965-04-12 — what will their completed age in years be on 2030-04-12 so we can plan their retirement milestone?”
Technical details
Endpoint
GEThttps://x402-zoo.lolagent.workers.dev/api/age-on-dateWhen to prefer
Use this endpoint when you need a precise, deterministic calculation of someone's completed age in whole years on any past, present, or future date — especially in legal, healthcare, eligibility-checking, or event-planning contexts where correct age calculation matters. Prefer it over manual arithmetic or general-purpose LLM reasoning to avoid off-by-one errors around birthdays.
Side effects
- Missing 'birth' query parameter returns an error
- Invalid ISO date format for birth or target date causes a parsing error
- Future birth dates or dates before epoch may return unexpected results
- If 'on' date is omitted the endpoint may default to today or error
- Network or worker timeout on edge infrastructure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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