username.dev provides a comprehensive API for username governance, enabling platforms to filter brands, profanity, reserved terms, and premium handles in a single API call. It eliminates the need for maintaining internal blacklists while offering high-performance global checks through Cloudflare's edge network.
Key benefits include:
- 15+ Content Categories: Automatically detect brands, public figures, offensive terms, cities, and system-reserved keywords
- Global Low-Latency Network: 300+ edge locations deliver sub-200ms P95 latency worldwide
- Metadata Enrichment: Receive country codes, languages, and category IDs instead of simple boolean responses
- Smart Normalization: Automatic handling of case sensitivity, unicode characters, and whitespace variations
- Security Features: Built-in rate limiting, encrypted API keys, and enterprise-grade authentication
Perfect for founders, product teams, and trust & safety specialists building social platforms, marketplaces, or communities who need automated username moderation without developing internal tools.
