Hi Akshatha S,
There is such API when you use your own tenant of SAP Cloud Identity. SAP ID service is the SAP’s tenant. The API is described here https://help.hana.ondemand.com/cloud_identity/frameset.htm?55ab9b85dcf445b3b538ef8b77544f45.html . You can create and invite users to your application. You can check the user credentials and update their user profile. We are working and to provide user search API and it will be available soon. The change password process is a self-service and there isn’t an API for this. The end users can trigger the rest password process from the login screen or from Profile Page.