The Dataspace Protocol is a detailed set of rules designed to facilitate seamless data sharing between data space components and participants. The Dataspace Protocol ensures trust and interoperability, defining the needed schemas and protocols for cataloging data, negotiating contracts and usage agreements within a data space.
For more information on the Dataspace Protocol visit here.
For a detailed up-to-date list of Data Space Connector that are implementing the Dataspace Protocol, check out the Data Space Connector Report