Looking for a way to fetch recent mesages

Hey,

I've been using this APl for a while, and now want to add a summary of all received messages to my application. However, cannot find a method to retrieve recent messages. Tried using a custom request via get CustomData, but couldn't figure out the correct APl call. Is there a supported way to fetch recent messages through this API?

Thanks in advance!

Regards,
TheTigerPython