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Foundry Age Calculator
x402
Foundry Age Calculator is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Calculates a person's age in years and days, their birth weekday, next birthday date, and days until that birthday from a given birth date.
Price / call$0.001
Success—
StatusUnknown
How this service works
Age calculator: age in years and days, next birthday and days until it. Input: a birth date 'YYYY-MM-DD'.
Output
Returns a JSON object with the input birth date, age in whole years, total age in days, the weekday the person was born, the date of their next birthday (YYYY-MM-DD), and the number of days remaining until that next birthday.
Example use cases
Personal age and birthday countdown
“I was born on 1988-11-04 — can you tell me exactly how old I am in years and days, what weekday I was born on, and how many days until my next birthday?”
Age verification for a user profile
“A user signed up and their listed date of birth is 2001-07-30. Can you calculate their current age in years and days and tell me when their next birthday is?”
Birthday reminder bot setup
“My daughter was born on 2015-09-12. How many days old is she today, what year will her next birthday fall on, and how many days away is it?”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/age-calculator?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, precise age computation from a single birth date without requiring a calendar API or complex date library. Ideal for agents handling age verification, birthday reminders, or profile enrichment where exact day-level precision matters.
Side effects
- Invalid date format (not YYYY-MM-DD) causes a parsing error
- Future birth dates may return unexpected or negative age values
- Missing or empty input field returns an error
- Leap year edge cases (e.g. Feb 29) may need special handling for next birthday calculation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Birth date as YYYY-MM-DD |
Output
Schema · Response
{
"type": "json",
"example": {
"born": "1995-06-15",
"age_days": 11461,
"age_years": 31,
"born_weekday": "Thursday",
"next_birthday": "2027-06-15",
"days_to_birthday": 227
}
}Tags
x402
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