Agify.io

Development

api.agify.io

Predicts a person's age from their first name using a name-frequency model, returning an estimated age, the sample count behind it and the name.

Runs on your machine under the source's own terms

The crw MCP on your computer calls Agify.io directly. Calls cost no credits and the data does not pass through fastCRW. Install it once for Claude Code, Cursor, Codex, Windsurf, Gemini CLI or OpenCode, with your fastCRW API key in place of the placeholder:

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Capabilities (1)

agify/predictFree, runs locally

Estimated age for one or more first names, with the number of samples the estimate is based on.

namecountry_id?

Licence

Do not resell API results as a standalone dataset. You may, however, incorporate predictions into your own products, services, reports, and research.

https://agify.io/terms

Attribution

Display this wherever you show the data. It arrives on every response as provenance.attributionText.

Source: Agify.io (Demografix ApS).

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