# Application Limits

**URL:** <http://forum.companieshouse.gov.uk/t/application-limits/11675>\
**Category:** Information\
**Created:** [June 16, 2025, 5:34pm UTC](http://forum.companieshouse.gov.uk/t/application-limits/11675 "2025-06-16T17:34:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dimitrioskazantzis99](http://forum.companieshouse.gov.uk/letter_avatar_proxy/v4/letter/d/c68b51/32.png) [@dimitrioskazantzis99](http://forum.companieshouse.gov.uk/u/dimitrioskazantzis99)\
**Post date:** [June 16, 2025, 5:34pm UTC](http://forum.companieshouse.gov.uk/t/application-limits/11675/1 "2025-06-16T17:34:41Z")

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I have a couple of questions I was hoping you could help with:

1. **Application Limits** : How many live applications can we create and maintain under a single developer account?

2. **Enterprise Authentication** : Is there a scalable or enterprise-grade approach to API authentication (beyond the standard API key per application)?

Any guidance you can share would be greatly appreciated!

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**Author:** ![snicholas](http://forum.companieshouse.gov.uk/letter_avatar_proxy/v4/letter/s/97f17d/32.png) [@snicholas](http://forum.companieshouse.gov.uk/u/snicholas)\
**Post date:** [June 17, 2025, 10:52am UTC](http://forum.companieshouse.gov.uk/t/application-limits/11675/2 "2025-06-17T10:52:00Z")

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Companies House does not encourage mass use of API keys - the rate limits are in place to ensure the stability and reliability of the platform. The rate limits should be built into your application as returning errors is a huge overhead on the service, and our Support Teams will manually ban IPs that are constantly bombarding the service causing degradation for all users.

SDN