Data is an integral part of the computing. For the decentralized computing economy we need to have equally decentralized data economy -- the boundary between the two is somewhat vanishing. We will be designing a NuNet data mesh, allowing all machines, all services running on those machines to search, match to the specified needs, ingest, use and compensate [for usage, storage, etc.] data in most granular way. The data mesh infrastructure used by NuNet network will be created via specifying, designing and maintaining data related APIs: Data description API, Data ingestion API and Data streaming API -- whether or not they will be separate or form a single API; API specific work is tracked via (epic https://gitlab.com/groups/nunet/-/epics/19. --- **Issue metadata** - Issue type: Epic - Priority: Medium - Originally Imported from Jira [NPD-81]