MyCSF is the assurance integration in the catalog. It is not an identity provider. The route is /app/settings/catalog/mycsf.
What the connection does
You connect a HITRUST MyCSF API user. From that connection you import assessment controls into HITRUST readiness. The import brings the controls across. It does not replace the implemented controls, risks, or evidence you already keep in ISMSVision.
Webhooks, the other catalog entry, are marked coming soon and are not a connection you can turn on.