Sending Manual MFA Prompts

I am looking to see if there is the capabilities to utilize the existing Multifactor Authentication System in Azure to prompt to send a Authentication Requests for when dealing with users to verify their identity when working with them remotely. Can not find an api to call or command to prompt for user authentication in any automation/scripting platform (Power Automate, Powershell, etc.)
Would like to sent to their default device and if it selected as Authentication App, they would just need to approve; if it is selected as sending a 6 digit code. a prompt for me to input so I can verify their identity.
This thought process is to avoid verification questions found in common social media (Mother's maiden name, middle name, etc.)
Wasn't sure if it can only be use as a prompt when the user is signing onto the account themselves.