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Age from Birthdate
x402
Age from Birthdate is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Computes a person's age in whole years from an ISO-8601 birthdate for eligibility checks and profile enrichment.
Price / call$0.001
Success—
StatusUnknown
How this service works
Age in whole years. Use for eligibility checks and profile enrichment from a birthdate. Returns whole-year age from an ISO birthdate (not a legal ID check). $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.
Output
Returns a JSON object containing the person's age expressed as a whole-number integer (e.g. {"age": 29}), computed deterministically from today's date minus the supplied ISO-8601 birthdate. No fractional years, no legal identity verification — strictly a calendar-year arithmetic result.
Example use cases
Age eligibility gate for signup
“A user says their birthdate is 2006-03-22 — can you check how old they are in whole years so I can decide whether they're old enough to create an account?”
Profile enrichment from stored birthdate
“I have a user record with birthdate 1988-11-05 and I need to populate their age field in whole years for display on their profile page.”
Senior discount qualification check
“A customer claims to be 65 or older — their birthdate is 1958-04-30. Can you calculate their exact age in whole years so I can confirm they qualify for the senior discount?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/age-yearsWhen to prefer
Choose this endpoint when you need a simple, deterministic, server-side whole-year age calculation from a birthdate without building date arithmetic yourself, especially in agent pipelines where you want a consistent first-party JSON result, no API key management, and a pay-per-call micropayment model. Prefer it over client-side date math for auditable, reproducible age values in eligibility or enrichment workflows. Not a legal ID or identity verification service.
Side effects
- Invalid or non-ISO-8601 date format returns a structured validation error (not billed)
- Future birthdate supplied returns a structured error or zero/negative age
- Missing birthdate field triggers a structured validation error (not billed)
- Payment failure or insufficient USDC balance prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| birthdate | string | ISO-8601 birth date (YYYY-MM-DD). Used only to compute whole-year age. |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/age-years/v1",
"age_years": 26,
"birthdate": "2000-01-01"
}
}Tags
x402
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