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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.

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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 includes 50 requests per month - perfect for testing and development. For production use, upgrade to the Pro plan. Learn more about pricing and credit costs.

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Using the API Key

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

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Next Steps

Got your API key? Head to the Quickstart Guide to start making your first requests with our official SDKs or other integrations.