Nationalize.io
nationalize.ioREST API that predicts the likely nationality (country of origin) of a person from their first or last name, returning ranked ISO country codes with probability scores.
The Nationalize.io API uses api key authentication; has freemium pricing; offers a free tier (2,500 names/month, no credit card required); rate limits: Monthly quota by plan (counted per name); responses include X-Rate-Limit-Limit/Remaining/Reset headers; 429 when quota or per-IP limit exhausted. Paid plans advertised as '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. Enterprise via contact sales. Counted by names, not calls.
nationalize.io ↗Rate limits
Monthly quota by plan (counted per name); responses include X-Rate-Limit-Limit/Remaining/Reset headers; 429 when quota or per-IP limit exhausted. Paid plans advertised as 'No rate limiting'.
nationalize.io ↗OpenAPI spec
not documented null
no source