Hello @Gorthi Sai Sri Sindhuja,
Azure Digital Twins 3D Scenes Studio does not have a REST API like the Azure Digital Twins Control Plane or Data Plane.
3D Scenes Studio is configured using the 3DScenesConfiguration.json file found in the related Azure Data Storage container where the 3D images are stored:
This gives the same ability as the Build part of 3D Scenes Studio.
By manipulating the file (which is tricky and not recommended) you could automate some tasks.
The JSON schema of the file is seen here.
At least, make a copy of the file first.
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