Genderize, Agify and Nationalize

by genderize.io

Language and text Added on October 31st, 2026 Checked and working on November 8th, 2026

What it does

Genderize.io, Agify.io and Nationalize.io predict the likely gender, age or nationality for a first name, based on large datasets of names. Each result includes a probability and the number of data points it is based on, and you can narrow a prediction to a country. Responses are JSON. Free up to 100 names per day; paid plans for more.

API
HTTP-GET
JSON
REST

At a glance

API key: Not needed · More APIs with no key
Pricing: Free up to 100 names per day; paid plans for more.
From the browser: Yes (CORS)
Formats: JSON
Interface: REST, HTTP-GET
Provider: genderize.io
Last checked: Working on November 8th, 2026

More information: https://genderize.io/

Is this your service? Show that it is listed

Put this badge on your website or in your README; it links to this page. About the badge

HTML

<a href="https://free-web-services.com/web-services/language/genderize-agify-and-nationalize.html"><img src="https://free-web-services.com/badge.svg" width="208" height="44" alt="Listed on Free Web Services" /></a>

Markdown

[![Listed on Free Web Services](https://free-web-services.com/badge.svg)](https://free-web-services.com/web-services/language/genderize-agify-and-nationalize.html)

Genderize, Agify and Nationalize — genderize.io

Example request

curl

curl 'https://api.genderize.io?name=peter'

JavaScript

const response = await fetch("https://api.genderize.io?name=peter");
const data = await response.json();
console.log(data);

Python

import requests

response = requests.get(
    "https://api.genderize.io?name=peter",
    timeout=30,
)
print(response.json())

The JavaScript works in a web page as well as in Node.js 18 or newer.