# Request for Dummy Company Number and Authentication Code for API Testing

**URL:** <http://forum.companieshouse.gov.uk/t/request-for-dummy-company-number-and-authentication-code-for-api-testing/12232>\
**Category:** Information\
**Created:** [October 14, 2025, 2:34pm UTC](http://forum.companieshouse.gov.uk/t/request-for-dummy-company-number-and-authentication-code-for-api-testing/12232 "2025-10-14T14:34:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![productivelydev](http://forum.companieshouse.gov.uk/letter_avatar_proxy/v4/letter/p/3ec8ea/32.png) [@productivelydev](http://forum.companieshouse.gov.uk/u/productivelydev)\
**Post date:** [October 14, 2025, 2:34pm UTC](http://forum.companieshouse.gov.uk/t/request-for-dummy-company-number-and-authentication-code-for-api-testing/12232/1 "2025-10-14T14:34:45Z")

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Hi Team,

I’ve successfully completed the **update address scenario** using the Companies House API.  
To test the complete procedure and confirm everything works end-to-end, I need access to a **dummy company number** and a corresponding **authentication code**.

Could you please provide details or guidance on how to obtain these for development and testing purposes?