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How to use registerId in API requests for Germany and other countries?

A guide on using the registerId and related parameters for API requests in Germany and other countries. 

For making an API request for companies in Germany, using the registerId, you need to use both the registerId and the name of the city. Here is an example:

https://www.northdata.com/_api/company/v1/company?api_key=XXXX-XXXX&registerId=HRB%20209848&registerCity=Braunschweig&output=xml

For countries other than Germany, you should use the country code in addition to the registerId. Here is an example for an API call for a company in Belgium, using registerId: 

https://www.northdata.com/_api/company/v1/company?api_key=XXXX-XXXX&output=json&fuzzyMatch=true&extras=true&countries=BE&registerId=KBO%200881.653.685

You can find the companies' register IDs for different countries in the following table: Register IDs in supported countries

For more technical details, see our API documentation.