All API endpoints require authentication using an API key. You must include your API key in the Authorization header of each request using the Bearer token format.

Getting an API Key (takes under a minute)

  1. Create an account at openregister.de
  2. Go to the API Keys page
  3. Create a new API key
The free plan is limited to 50 requests per month. If you need more to integrate and test please reach out to us at founders@openregister.de. Otherwise upgrade to the premium plan to pay as you go.

Using the API Key

Include the API key in the Authorization header of all API requests:
Authorization: Bearer YOUR_API_KEY