The new V4.4 Popsell APIs are currently evolving, and the API reference is also being updated.
New API Reference 4.4 will be released in Q1 2022.
API references provided below are Beta versions.

Beta versions of the API reference are available:

The Swagger JSON file can also be integrated in Postman. The following article is a guidance on how to proceed with Postman : Postman configuration for the Swagger