CFC API Reference
For API requests, use the below information.
Note: These certificates are common for both sandbox and production environments.
Note sure if SNI is enabled or not?
No worries, install all of the above certificates. One of them would surely work.
TLS Versions Supported: TLS 1.2.
For detailed information on how to download the host, intermediate, and root certificates, you can always refer to How to get SSL Certificate. Alternatively, you can also download the certificates directly from the below links.