Is it possible to connect a trial account of SAP Marketing Cloud to the SAP Business API Hub ?

Hello, I wanted to access the APIs of my trial (30 day) SAP Marketing Cloud platform. I was interested in testing out the API capabilities of the system in SAP API business Hub. I have followed the documentation for Marketing Cloud which states that- to enable integration with Public APIs, one needs to enable some configuration on the Maintain Communication Users app. But this app is not available on my trial account. So, I wanted to know is it possible to use a trial account to integrate with the API Hub or do we need a production system for that ? And if that's the case, how do I avail a production/Tenant account. I could only find the option of availing Trial account on the platform. Regards, Boudhayan Dev.