Rotary Agency Genderize API

Choose this endpoint when you need a quick, lightweight gender prediction from a first name without building your own model. It is best for personalization pipelines, CRM enrichment, salutation generation, or demographic analytics where approximate gender inference from names is sufficient. Prefer alternatives if you need multi-locale name handling with deep linguistic analysis or require GDPR-compliant processing guarantees.

• Name not found in dataset — returns null gender with zero probability
• Missing or empty name parameter — returns 400 bad request
• Ambiguous or rare names may return low probability scores
• Non-alphabetic or numeric name strings may return unexpected results
• Rate limiting or payment failure may result in 402 or 429 responses