published

Genderize.io

The Genderize.io API enables developers to predict the gender associated with first names, facilitating demographic analysis and personalization in applications.

Developed by Genderize.io

View Source
99.98%Uptime
120msLatency
132Stars
No AuthAuth
NoCredit Card
RESTStyle
1.0Version
API Endpoints

Reference for available routes, request structures, and live examples.

Predicts gender from a name

Full Endpoint URL
https://api.genderize.io
Implementation Example
curl -X GET 'https://api.genderize.io'
Request Payload
{
  "name": "emily"
}
Expected Response
{
  "name": "emily",
  "gender": "female",
  "probability": 0.98
}
Version:v1
Limit:1000 requests/day
Real-World Applications
  • Personalizing user profiles in web appsOptimized Capability
  • Targeted marketing campaignsOptimized Capability
  • Demographic research and analyticsOptimized Capability
  • Content personalization based on user genderOptimized Capability
  • Form optimization by auto-filling genderOptimized Capability
Advantages
  • ✓ No authentication required for basic use
  • ✓ Fast and easy integration with RESTful interface
  • ✓ Transparent response with probability and count
  • ✓ Generous free tier with 1000 daily requests
  • ✓ Supports multiple languages and cultures
Limitations
  • ✗ Paid plans required for high volume usage
  • ✗ No official SDKs available
  • ✗ Accuracy limited for uncommon or ambiguous names
  • ✗ Cannot predict gender for last names or full names
  • ✗ Primarily outputs only binary gender options

FAQs

API Specifications

1.0
Pricing Model
Freemium (monthly paid plans for higher usage)
Credit Card
Not Required
Response Formats
JSON
Supported Languages
8 Languages
SDK Support
REST Only
Time to Hello World

Under 5 minutes

Rate Limit

1000 requests/day free; higher limits on paid plans

Free Tier Usage

1000 requests per day with no API key required.

Use Case: Best For

Developers seeking quick gender predictions for first names in apps, forms, or analytics dashboards.

Not Recommended For

Applications needing non-binary gender options, offline use, or high-accuracy predictions for rare/unusual names.

Resources

Documentation Official Website Source Code Pricing Details Postman Collection
#demographics#prediction

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