Building Your Integration

Ready to write code? These guides get you connected and registering domains, whichever protocol or language you work in — plus the credentials, security and testing groundwork every integration needs.

REST API Integration GuideFrom credentials to your first registered domain.

EPP Integration Guide for RegistrarsSessions, commands, transfers and OT&E certification.

SDK Quick StartsPHP, Node.js, Python and C# — the same happy path in your language.

Authentication, Credentials & IP AllowlistingHow access works, and how to keep it secure.

Testing Your Integration in CentralNic OT&EValidate everything before you go live.