Documentation
API Reference
Everything you need to integrate WhoisGenius into your workflow.
Quick Start
Get your first result in 30 seconds. No SDK required — any HTTP client works.
Get your API key →Interactive API Docs
OpenAPI 3.1 documentation with live request testing. Powered by Swagger UI.
Open API docs →Authentication
Authenticate with your API key via the X-API-Key header. JWT tokens also supported.
Endpoints
Domain analysis, batch processing, webhooks, subdomains, certificates, entity search, and more.
Example Request
# Analyze a domain
curl https://api.whoisgeni.us/analyze/signal.org \
-H "X-API-Key: YOUR_KEY"