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Authentication

Every Reinterface API call is authenticated with your API key.

Overview

All requests are made against https://api.reinterface.com/api/v1 with your API key in the x-api-key header. The same key works across the Email, Calendar, and DNS APIs. Find it under Dashboard → Settings → API key.

Auth header
-H "x-api-key: <API_KEY>"

Example request

Request
curl "https://api.reinterface.com/api/v1/dns/records?domain=company.com" \
  -H "x-api-key: <API_KEY>"

Security

Keep your key server-side

Never expose your API key in client-side code or public repositories. Attach it on your server and send it in the x-api-key header — not as ?api_key= in URLs (except OAuth authorize links opened in a browser).