App Store Connect API(Key) https://appstoreconnect.apple.com/access/api

Creating API Keys for App Store Connect API https://developer.apple.com/documentation/appstoreconnectapi/creating_api_keys_for_app_store_connect_api

Appp Store Connectのタスク https://developer.apple.com/jp/app-store-connect/api/

3 企業でアカウントを取得する場合

DUNSナンバーが必要になる
https://www.tsr-net.co.jp/service/online/get-a-duns-number/search.html