Age CalculatorAge Calculator API

OnlineCredit Usage:1 per callRefreshed 1 month ago
avg: 312ms|p50: 295ms|p75: 323ms|p90: 357ms|p99: 424ms

Overview

To use Age Calculator, you need an API key. You can get one by creating a free account and visiting your dashboard.

GET Endpoint

URL
https://api.apiverve.com/v1/agecalculator

Example

How to call the Age Calculator API in different programming languages.

cURL Request
curl -X GET \
  "https://api.apiverve.com/v1/agecalculator?dob=1990-08-02" \
  -H "X-API-Key: your_api_key_here"
JavaScript (Fetch API)
const response = await fetch('https://api.apiverve.com/v1/agecalculator?dob=1990-08-02', {
  method: 'GET',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();
console.log(data);
Python (Requests)
import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

response = requests.get('https://api.apiverve.com/v1/agecalculator?dob=1990-08-02', headers=headers)

data = response.json()
print(data)
Go (net/http)
package main

import (
    "fmt"
    "io"
    "net/http"

)

func main() {
    req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/agecalculator?dob=1990-08-02", nil)

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}
Example Response
{
  "status": "ok",
  "error": null,
  "data": {
    "dob": "1990-01-01",
    "age_breakdown": {
      "years": 35,
      "months": 431,
      "weeks": 1876,
      "days": 13133,
      "hours": 315208,
      "minutes": 18912499,
      "seconds": 1134749976
    },
    "age_words": {
      "years": "thirty-five",
      "ordinal": "thirty-fifth",
      "full": "thirty-five years old",
      "locale": "en-US"
    },
    "timezone": "America/Chicago",
    "locale": "en-US",
    "next_birthday": {
      "months": 0,
      "weeks": 2,
      "days": 15,
      "hours": 367,
      "minutes": 22060,
      "seconds": 1323623
    },
    "insights": {
      "generation": "Millennial",
      "zodiacSign": "Capricorn",
      "chineseZodiac": "Horse",
      "birthstone": "Garnet",
      "dayOfWeekBorn": "Monday",
      "isLeapYearBirth": false,
      "milestones": {
        "canVoteUS": true,
        "canDrinkUS": true,
        "canRentCarUS": true,
        "seniorDiscount": false
      }
    }
  }
}

Authentication

The Age Calculator API requires authentication via API key. Include your API key in the request header:

Required Header
X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Age Calculator API directly in your browser with live requests and responses.

Parameters

The following parameters are available for the Age Calculator API:

Calculate Age from Date of Birth

ParameterTypeRequiredDescriptionDefaultExample
dobstringrequired
The date of birth to calculate the age from (format: YYYY-MM-DD)
Format: date (e.g., 1990-08-02)
-1990-08-02

Response

The Age Calculator API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

XML Response
200 OK
<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <dob>1990-01-01</dob>
    <age_breakdown>
      <years>35</years>
      <months>431</months>
      <weeks>1876</weeks>
      <days>13133</days>
      <hours>315208</hours>
      <minutes>18912499</minutes>
      <seconds>1134749976</seconds>
    </age_breakdown>
    <age_words>
      <years>thirty-five</years>
      <ordinal>thirty-fifth</ordinal>
      <full>thirty-five years old</full>
      <locale>en-US</locale>
    </age_words>
    <timezone>America/Chicago</timezone>
    <locale>en-US</locale>
    <next_birthday>
      <months>0</months>
      <weeks>2</weeks>
      <days>15</days>
      <hours>367</hours>
      <minutes>22060</minutes>
      <seconds>1323623</seconds>
    </next_birthday>
    <insights>
      <generation>Millennial</generation>
      <zodiacSign>Capricorn</zodiacSign>
      <chineseZodiac>Horse</chineseZodiac>
      <birthstone>Garnet</birthstone>
      <dayOfWeekBorn>Monday</dayOfWeekBorn>
      <isLeapYearBirth>false</isLeapYearBirth>
      <milestones>
        <canVoteUS>true</canVoteUS>
        <canDrinkUS>true</canDrinkUS>
        <canRentCarUS>true</canRentCarUS>
        <seniorDiscount>false</seniorDiscount>
      </milestones>
    </insights>
  </data>
</response>
YAML Response
200 OK
status: ok
error: null
data:
  dob: '1990-01-01'
  age_breakdown:
    years: 35
    months: 431
    weeks: 1876
    days: 13133
    hours: 315208
    minutes: 18912499
    seconds: 1134749976
  age_words:
    years: thirty-five
    ordinal: thirty-fifth
    full: thirty-five years old
    locale: en-US
  timezone: America/Chicago
  locale: en-US
  next_birthday:
    months: 0
    weeks: 2
    days: 15
    hours: 367
    minutes: 22060
    seconds: 1323623
  insights:
    generation: Millennial
    zodiacSign: Capricorn
    chineseZodiac: Horse
    birthstone: Garnet
    dayOfWeekBorn: Monday
    isLeapYearBirth: false
    milestones:
      canVoteUS: true
      canDrinkUS: true
      canRentCarUS: true
      seniorDiscount: false
CSV Response
200 OK
keyvalue
dob1990-01-01
age_breakdown{years:35,months:431,weeks:1876,days:13133,hours:315208,minutes:18912499,seconds:1134749976}
age_words{years:thirty-five,ordinal:thirty-fifth,full:thirty-five years old,locale:en-US}
timezoneAmerica/Chicago
localeen-US
next_birthday{months:0,weeks:2,days:15,hours:367,minutes:22060,seconds:1323623}
insights{generation:Millennial,zodiacSign:Capricorn,chineseZodiac:Horse,birthstone:Garnet,dayOfWeekBorn:Monday,isLeapYearBirth:false,milestones:{canVoteUS:true,canDrinkUS:true,canRentCarUS:true,seniorDiscount:false}}

Response Structure

All API responses follow a consistent structure with the following fields:

FieldTypeDescriptionExample
statusstringIndicates whether the request was successful ("ok") or failed ("error")ok
errorstring | nullContains error message if status is "error", otherwise nullnull
dataobject | nullContains the API response data if successful, otherwise null{...}

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

FieldTypeSample ValueDescription
dobstring"1990-01-01"
Date of birth as provided in request (format: YYYY-MM-DD)
age_breakdownobject{...}
Age expressed in years, months, weeks, days, hours, minutes, and seconds
â”” yearsnumber35
Person's age in complete years
â”” monthsnumber431
Total age in months
â”” weeksnumber1876
Total age in weeks
â”” daysnumber13133
Total age in days
â”” hoursnumber315208
Total age in hours
â”” minutesnumber18912499
Total age in minutes
â”” secondsnumber1134749976
Total age in seconds
age_wordsobject{...}
Age expressed in words (e.g., thirty-five years old)
â”” yearsstring"thirty-five"
Age in written word form (e.g., thirty-five)
â”” ordinalstring"thirty-fifth"
Age in ordinal word form (e.g., thirty-fifth)
â”” fullstring"thirty-five years old"
Age as complete phrase (e.g., thirty-five years old)
â”” localestring"en-US"
Locale used for word generation (e.g., en-US)
timezonestring"America/Chicago"
Timezone associated with the calculation (e.g., America/Chicago)
localestring"en-US"
Locale code for the response (e.g., en-US)
next_birthdayobject{...}
Countdown to next birthday in months, weeks, days, hours, minutes, seconds
â”” monthsnumber0
Months until next birthday
â”” weeksnumber2
Weeks until next birthday
â”” daysnumber15
Days until next birthday

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access Age Calculator through GraphQL to combine it with other API calls in a single request. Query only the age calculator data you need with precise field selection, and orchestrate complex data fetching workflows.

Test Age Calculator in the GraphQL Explorer to confirm availability and experiment with queries.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

GraphQL Endpoint
POST https://api.apiverve.com/v1/graphql
GraphQL Query Example
query {
  agecalculator(
    input: {
      dob: "1990-08-02"
    }
  ) {
    dob
    age_breakdown {
      years
      months
      weeks
      days
      hours
      minutes
      seconds
    }
    age_words {
      years
      ordinal
      full
      locale
    }
    timezone
    locale
    next_birthday {
      months
      weeks
      days
      hours
      minutes
      seconds
    }
    insights {
      generation
      zodiacSign
      chineseZodiac
      birthstone
      dayOfWeekBorn
      isLeapYearBirth
      milestones {
        canVoteUS
        canDrinkUS
        canRentCarUS
        seniorDiscount
      }
    }
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The Age Calculator API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

Age Calculator requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The Age Calculator API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for Age Calculator

Official Age Calculator packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

No-Code Integrations

Age Calculator works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Frequently Asked Questions

How do I get an API key for Age Calculator?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Age Calculator and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
How many credits does Age Calculator cost?

Each successful Age Calculator API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful age calculator lookups.

Can I use Age Calculator in production?

The free plan is for testing and development only. For production use of Age Calculator, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.

Can I use Age Calculator from a browser?
Yes! The Age Calculator API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
What happens if I exceed my Age Calculator credit limit?

When you reach your monthly credit limit, Age Calculator API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.

What's Next?

Continue your journey with these recommended resources

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