A public workspace is a “place” for your API artifacts, and also a place for API producers and API consumers to coexist and work together. The key difference here is that the API consumer can be anyone in the world: A public workspace exists at a URL that allows anyone to see what’s in the workspace—even if they don’t have a Postman account. A free Postman account allows the consumer to actually interact with the workspace and establish a two-way dialog with the producer.