Age Calculate API

POST https://api.findutils.com/api/tools/age-calculate/execute

Calculate age from a date of birth — years, months, days, plus totals in days, weeks, and months. Accepts ISO 8601 or anything Date.parse handles.

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Request body

application/json

date_of_birth

string required

Date of birth (ISO 8601 preferred, e.g. 1990-04-18).
reference_date

string optional

Date to measure age against. Default: today (UTC).

Example arguments

Verified

{
  "date_of_birth": "1990-06-15",
  "reference_date": "2026-04-18"
}

curl -X POST https://api.findutils.com/api/tools/age-calculate/execute \
  -H "Content-Type: application/json" \
  -d '{
    "date_of_birth": "1990-06-15",
    "reference_date": "2026-04-18"
  }'

const response = await fetch('https://api.findutils.com/api/tools/age-calculate/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"date_of_birth":"1990-06-15","reference_date":"2026-04-18"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/age-calculate/execute",
    json={"date_of_birth":"1990-06-15","reference_date":"2026-04-18"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/age-calculate/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"date_of_birth":"1990-06-15","reference_date":"2026-04-18"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call age_calculate from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: age-calculate
MCP name: age_calculate
Category: Date & time
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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