No. A personal OpenAPI application can only be used by the client who owns it. Anyone else who logs in to it, such as a family member, a colleague or a tester, sees the message "You are not authorized to access this application". Their normal Saxo login is not affected.
Each person who wants to use OpenAPI on their own account must create their own application on the Developer Portal.
If you want to offer an application to other Saxo clients, see Am I allowed to create a commercial app?
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