# Request CAC using XML or API

**URL:** <https://xmlforum.companieshouse.gov.uk/t/request-cac-using-xml-or-api/754>\
**Category:** Incorporation\
**Created:** [September 15, 2022, 6:04pm UTC](https://xmlforum.companieshouse.gov.uk/t/request-cac-using-xml-or-api/754 "2022-09-15T18:04:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kasi\_panala](https://xmlforum.companieshouse.gov.uk/letter_avatar_proxy/v4/letter/k/7ea924/32.png) [@kasi\_panala](https://xmlforum.companieshouse.gov.uk/u/kasi_panala)\
**Post date:** [September 15, 2022, 6:04pm UTC](https://xmlforum.companieshouse.gov.uk/t/request-cac-using-xml-or-api/754/1 "2022-09-15T18:04:55Z")

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Hi,

Other than using Companies House Web Filing Service, is there any way to request Company Authentication Code by using XML or API services?

Any info is appreciated and Thank you !!!

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**Author:** ![snicholas](https://xmlforum.companieshouse.gov.uk/user_avatar/xmlforum.companieshouse.gov.uk/snicholas/32/81_2.png) [@snicholas](https://xmlforum.companieshouse.gov.uk/u/snicholas)\
**Post date:** [September 16, 2022, 6:26am UTC](https://xmlforum.companieshouse.gov.uk/t/request-cac-using-xml-or-api/754/2 "2022-09-16T06:26:57Z")

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Good morning,

There is no other way of requesting a code - however, a company can advise a code (of their choice) when submitting their incorporation data by populating the relevant schema element.

SDN

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**Author:** ![kasi\_panala](https://xmlforum.companieshouse.gov.uk/letter_avatar_proxy/v4/letter/k/7ea924/32.png) [@kasi\_panala](https://xmlforum.companieshouse.gov.uk/u/kasi_panala)\
**Post date:** [September 16, 2022, 11:55am UTC](https://xmlforum.companieshouse.gov.uk/t/request-cac-using-xml-or-api/754/3 "2022-09-16T11:55:03Z")

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Hi Simon,

Is this the Incorporation schema you were referring to?  
[http://xmlgw.companieshouse.gov.uk/v1-0/schema/forms/CompanyIncorporation-v3-6.xsd](http://xmlgw.companieshouse.gov.uk/v1-0/schema/forms/CompanyIncorporation-v3-6.xsd)

1. If yes, then I can’t find the relevant element to request CAC? Can you please point out the relevant element.

2. Also could you please clarify, is this Incorporation Schema will be used for when user forget the CAC post incorporation?

Thank you!!!

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<div class="post-metadata">

**Author:** ![snicholas](https://xmlforum.companieshouse.gov.uk/user_avatar/xmlforum.companieshouse.gov.uk/snicholas/32/81_2.png) [@snicholas](https://xmlforum.companieshouse.gov.uk/u/snicholas)\
**Post date:** [September 16, 2022, 12:33pm UTC](https://xmlforum.companieshouse.gov.uk/t/request-cac-using-xml-or-api/754/4 "2022-09-16T12:33:20Z")

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1. Yes, that is correct - the relevant element is:  
CompanyAuthenticationCode

2. No, there is nothing enabled related to CAC in software post incorporation.

SDN