A client authentication certificate is an X.509 digital certificate that verifies your identity as a DigiCert ONE user when you make requests via the DigiCert ONE API or client tools. It enables secure communication between applications.
Instead of providing the API key to the DigiCert ONE API, you can generate a client authentication certificate and provide the file path of your installed authentication certificate in the request header.
Note
If the service user expires or is disabled, any API integrations using the client authentication certificate will stop working. To prevent disruptions, ensure the service user remains active or update affected integrations accordingly.