Workflows and Automations

We explored a use case where, once the Major Incident (MI) is resolved, both a Problem and a Change are created simultaneously. Once these records are created, we need to establish an association between the Change and the Problem, either by associating the Change to the Problem or vice versa.I recall that there was previously a specific API endpoint for associating tickets/records. I would like to confirm whether a similar endpoint or API capability is currently available for associating a Change and a Problem.