Architect does not support transferring the journey analytics data via any external API.
You can export your Architect Analytics along with the requested performance metrics from your Inone panel, or export the user activities or user information related to a specific journey. For example, you can export the profile IDs or email addresses of the users who entered a particular journey, or the profile IDs of the users who received email or web push messages from a specific journey.
You can use two methods to export data: Export Raw User Data API or user profiles. Follow the steps on Export journey user data to get user filters, attributes, event details, and filter users with the desired journey-related events.