Does RChilli supports Basic or OAuth2?

Yes, we also have an option of OAuth 2 token generation, but that is only for Lease client or On-Premises servers and not for the Cloud API.

Also, for Cloud API clients, we have SSL configured at our production API. Once you will sign up, you will get SSL embedded dedicated RChilli API Service URL. So, it will be more secure for having https in service URL.

You can always contact RChilli Support via creating a ticket at RChilli Helpdesk or simply by sending an email at support@rchilli.com.