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published

Agify.io API

Agify.io API provides free access to predict the age range of individuals based on first names, making it ideal for personalized user experiences and demographic analysis.

Developed by Demografix ApS

Live API
99.90%Uptime
150msLatency
320Stars
API KeyAuth
NoCredit Card
RESTStyle
v1Version

Reference

API Endpoints

Endpoints

Available routes, request structures, and code examples.

Predicts age from a name using query parameter ?name=brian

Endpoint URL
https://api.agify.io/
Code Example
curl -X GET 'https://api.agify.io/'
Request Payload
{
  "name": "brian"
}
Expected Response
{
  "age": 42,
  "name": "brian",
  "count": 10000
}
Version:v1
Limit:1000 requests/day

Integration

Quick Start

cURL ExampleREST
curl -X GET "https://api.agify.io/?name=Michael&country_id=US&api_key=YOUR_API_KEY"

Docs

Technical Documentation

What this API does

The Agify.io API allows developers to predict the probable age of individuals based on their first names using aggregated statistical data. It offers country-localized queries and batch lookups for more precise insights into demographics, returning predictions in a structured JSON format.

How it works

Developers can utilize the API by sending HTTP GET requests. For name-based age predictions, the API processes data and returns the predicted age, alongside a confidence level determined from sample sizes. It seamlessly integrates with various applications, including web and mobile platforms.

Authentication

No authentication is required to use the Agify.io API. Developers can access the endpoints without needing API keys, making it easy to start using right away.

Example usage

  • /?name=Michael - Retrieves predicted age for the name Michael.
  • /?name[]=Michael&name[]=Sarah - Batch lookup for predicted ages of both names.
  • /?name=Emily&country_id=US - Retrieves predicted age for the name Emily, localized to the United States.

Limits

Developers can make up to 1,000 free requests per day without needing a credit card. Beyond this limit, additional API access may be subject to different terms, which should be checked on the official documentation page.

Ideal use cases

  • Personalizing user experiences by tailoring content recommendations based on predicted age.
  • Enhancing registration flows to gather demographic insights during user onboarding.
  • Supporting marketing segmentation by analyzing user demographics from first names.
  • Providing insights for applications in social networks or dating platforms based on user data.

Examples

Real-World Applications

  • Integrating age predictions into user registration forms for better personalization
  • Using the API in marketing tools to segment audiences based on estimated ages
  • Analyzing demographic data for academic and business research
  • Enhancing user experience in applications that use first names for tailored content
  • Building analytics dashboards with age demographic insights

Evaluation

Advantages & Limitations

Advantages
  • ✓ Free to use with up to 1,000 requests per day
  • ✓ No credit card required for signup
  • ✓ Supports country-specific age predictions
  • ✓ Simple RESTful API with easy-to-use endpoints
  • ✓ Batch lookup capabilities
Limitations
  • ✗ API key required despite no cost
  • ✗ Limited to first name based age predictions only
  • ✗ No support for last names or full name contexts
  • ✗ No official SDKs available
  • ✗ No advanced machine learning or AI-powered insights

Support

Frequently Asked Questions

Important Notice

Verify Before You Decide

Last verified · Apr 30, 2026

The details on this page — including pricing, features, and availability — are based on our last review and may not reflect the provider's current offering. Providers update their products frequently, sometimes without prior notice.

What may have changed

Pricing Plans
Features & Limits
Availability
Terms & Policies

Always visit the official provider website to confirm the latest pricing, terms, and feature availability before subscribing or integrating.

Check official site

External Resources

Documentation Official Website Pricing Details Postman Collection

API Specifications

v1
Pricing Model
Freemium with higher tiers available on request
Credit Card
Not Required
Response Formats
JSON
Supported Languages
7 Languages
SDK Support
REST Only
Rate Limit

1000 requests per day

Time to Hello World

Less than 5 minutes

Free Tier

1,000 free API requests per day with API key; no credit card required

Best For

Developers seeking quick, free age predictions from first names for demographic insights and personalization

Not Ideal For

Applications needing precise age verification or full identity validation; high volume users without paid plan

Tags

#enrichment#name#age-prediction#agify#free-api#analytics#demographics

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