Space
In OBP, if you have access to a "Space", you have access to a set of Dynamic Endpoints and Dynamic Entities that belong to that Space. Internally, Spaces are defined as a "Banks" thus Spaces are synonymous with OBP Banks.
A user can have access to several spaces. The API Explorer shows these under the Spaces menu.
In order to see the documentation for the Dynamic Endpoints and Dynamic Entities, a user may need to have access to the CanReadDynamicResourceDocsAtOneBank Role.
You can create your own Space by creating an OBP Bank.