Uploadcare projects are a way to create separate environments within a single account. Each project has its keys and settings. While projects cannot be fully managed via REST API, you can always use the API to request project info.
Please refer to getting a list of files for an example request and response.
This provides basic information about the project you connect to,
List of collaborators.
Project login name.
Project public key.
Each project object has a list of collaborators holding their names and emails.