# Life Dates & Milestones – Age Detail

> Life Dates & Milestones – Age Detail is a paid API for AI agents from life-dates.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).

Calculates exact age from a birth date, returning years, months, days, total days/weeks/hours, birth weekday, and days to next birthday.

## Facts

- Endpoint: GET https://life-dates.x402tookit.com/age-detail?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/life-dates-milestones-age-detail-8651be0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jIMCyuU95hnUPMetzzbLm

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability life-dates-milestones-age-detail-8651be0e
```

Example prompt: How old am I exactly? I was born on 1990-06-15 — give me my age broken down into years, months, and days, plus how many total days and weeks I've been alive and how many days until my next birthday.

## When to prefer this

Choose this endpoint when you need a comprehensive, multi-unit age breakdown from a single birth date — especially when you need total days, weeks, hours, birth weekday, next birthday countdown, and leap-day flags all in one call. Prefer it over a simple date-difference calculator when the output needs to be human-readable and multi-dimensional, or when you need the birth weekday and upcoming birthday metadata alongside the age.

## Known failure modes

- Missing required birthDate parameter returns an error
- Malformed date format (not YYYY-MM-DD) results in a parsing error
- Future birth dates may return unexpected or zero values
- Invalid asOf date causes a computation failure
- Network timeout or upstream service unavailability returns a non-200 response
- Payment failure (x402) prevents the request from being processed

## How this service works

Exact age from a birth date: years, months, days, total days, weeks and hours, birth weekday and days to the next birthday.

## Output

Returns a JSON object with the person's exact age broken down into years, months, and days; total days, weeks (with remainder days), hours, and minutes alive; the weekday they were born; whether they were born in a leap year or on a leap day; the date and days-to of their next birthday; the age they will be turning; a human-readable summary; and the reference date used (asOf).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "birthDate"
     ],
     "properties": {
      "asOf": {
       "type": "string",
       "description": "Date to measure to, YYYY-MM-DD (default today, UTC)"
      },
      "birthDate": {
       "type": "string",
       "description": "Birth date as YYYY-MM-DD"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "days": {
       "type": [
        "null",
        "number"
       ]
      },
      "years": {
       "type": [
        "null",
        "number"
       ]
      },
      "months": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ]
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "birthDate": {
       "type": [
        "null",
        "string"
       ]
      },
      "totalDays": {
       "type": [
        "null",
        "number"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "measuredTo": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "totalHours": {
       "type": [
        "null",
        "number"
       ]
      },
      "totalWeeks": {
       "type": [
        "null",
        "number"
       ]
      },
      "turningAge": {
       "type": [
        "null",
        "number"
       ]
    
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/life-dates-milestones-age-detail-8651be0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from life-dates.x402tookit.com](https://www.zero.xyz/host/life-dates.x402tookit.com/llms.txt)