Agify.io
agify.ioA REST API that returns an estimated statistical age for a given first name along with the number of data points behind the prediction.
The Agify.io API uses api key authentication; has freemium pricing; offers a free tier (2,500 names/month, no credit card required); rate limits: Counted by names against monthly plan quota; exceeding returns 429; per-IP limit exists; responses include X-Rate-Limit-Limit/Remaining/Reset headers; paid plans advertise 'No rate limiting'. Verified 2026-07-08 with per-field source links.
Pricing
Free: 2,500 names/mo; Basic: 25,000/mo $20; Standard: 250,000/mo $60; Plus: 2,500,000/mo $180; Premium: 25,000,000/mo $540; yearly billing pays for 10 months
agify.io ↗Rate limits
Counted by names against monthly plan quota; exceeding returns 429; per-IP limit exists; responses include X-Rate-Limit-Limit/Remaining/Reset headers; paid plans advertise 'No rate limiting'
agify.io ↗OpenAPI spec
not documented null
no source