Companies House Certificate for Mutual Authentication

Hello ,

We need to connect to the APIs of Companies House from our Organizations network. We are required to upload the CH certificate at the network end.

Could you please guide us with the correct certificate needed for Mutual Authentication.

We are trying to consume the below 3 APIs : -
https://identity.company-information.service.gov.uk/oauth2/authorise
https://api.company-information.service.gov.uk/company/00000006
https://document-api.company-information.service.gov.uk/document/

Please help us with the certificate so that we can establish the connectivity through Mutual TLS.

Regards,
Ajay S

Our public APIs do not require Mutual TLS.
Clients are free to connect without providing a client certificate.