produce (https://github.com/fastlane/fastlane/tree/master/create_app_online) provides developers with the ability to directly orchestrate the process of creating new iOS applications on the Developer portal, and iTunes Connect, all from within the command line. The following is the logo of produce:
This utility provides the ability for developers to create and register new apps on iTunes Connect/Developer portal, and register and modify application services, such as providing access to CloudKit, App Groups, and associate App Groups with the Apple Developer portal.
produce (https://github.com/fastlane/fastlane/tree/master/create_app_online) also supports multiple Apple accounts, storing and containing each set of credentials securely in the keychain.