Age Calculator API
Calculate your exact age in years, months, and days from any birth date — plus next birthday countdown.
Fast & Accurate
Get precise results instantly.
Easy Integration
Simple REST API with JSON response.
Developer Friendly
Clear docs and SDK examples.
Free to Start
1,000 free requests/month.
Endpoint
All requests should be made to the following endpoint:
GET https://api.tools.town/v1/date/age Authentication
This endpoint requires an API Key. Include your API key in the request header.
Request Parameters
Send a GET request with query parameters.
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
birthDate | string | ✓ | Use YYYY-MM-DD format. | 1990-01-15 |
asOf | string | ✕ | Use YYYY-MM-DD format. | example |
Example Request
curl -G "https://api.tools.town/v1/date/age" \
-H "Authorization: Bearer YOUR_API_KEY" \
--data-urlencode "birthDate=1990-01-15" Example Response 200 OK
{
"success": true,
"data": {
"years": "0",
"months": "0",
"days": "0",
"totalDays": "0",
"totalMonths": "0",
"totalWeeks": "0",
"nextBirthdayDays": "0",
"nextBirthdayDate": "string"
}
} Error Codes
| Code | Meaning |
|---|---|
| 400 | Bad Request — missing or invalid parameter |
| 401 | Unauthorized — API key missing or invalid |
| 429 | Rate limit exceeded — free tier: 1,000 requests/month |
| 500 | Internal Server Error — try again or contact support |