CVRcheck API Documentation

REST API for Danish company data. Base URL: https://api.cvrcheck.dk. Authentication via Authorization: Bearer YOUR_KEY header.

Rate Limits

• Free tier: 100 req/month, no key required
• Free key: 1,000 req/month
• Pro: 100,000 req/month
• Enterprise: unlimited

Resources

• OpenAPI 3.1 specification
• Postman collection
• MCP manifest (Claude, Cursor)
• ChatGPT plugin manifest
• LLM-friendly docs (llms.txt)
• Full LLM dump (llms-full.txt)
• Live API status

Code Examples

See language-specific guides: Python, Node.js, PHP, Go, C# / .NET, cURL.