Read docs Updated 2026-06-16
What is Agify.io?
Agify.io is an API that accepts a first name and returns an age estimate derived from that input.
It is useful for developers who need to add basic age inference to applications or data processing workflows.
What you can build with Agify.io
Demographic Insights for User Analytics
Developers integrate Agify into dashboards to estimate average age distributions across user lists or signups using only first names.
Personalized Content in Web Apps
Build features that adjust UI elements, recommendations, or messaging based on the estimated age returned for a user's provided first name.
Prototype Validation Tools
Quickly test name-based age assumptions in early-stage apps or A/B experiments without needing full user profile data.
Get started with Agify.io
- 1Visit agify.io to confirm the current endpoint and parameters
- 2Prepare a GET request with the 'name' query parameter
- 3Send the request over HTTPS to the public endpoint
- 4Parse the JSON response for the age estimate and count
- 5Add basic error handling for unknown names or rate limits
Agify.io: pros & cons
Pros
- +No API key or authentication needed
- +Simple single-endpoint HTTPS access
- +Returns results instantly with minimal input
- +Useful for lightweight name-based estimates
Cons
- –Provides statistical estimates only, not individual accuracy
- –Supports first names exclusively
- –No batch or advanced filtering options
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Frequently asked questions
Agify.io is an API that returns an estimated age for a supplied first name using statistical data.
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