I want to rename the file name and file extension using API

Would it be possible to rename the file name by API end point ? can someone help me if this possible

You can rename the asset in Frame.io but it will not rename the actual file if it’s downloaded, that will remain the same as when it was first uploaded.

That can be done with a PUT call to the /v2/assets/:id endpoint with the key/value part of
{"name": "new_asset_name.mov"}.