Article 8 requires that where a data holder is obliged under Union law to make data available to a data recipient, the data must be made available on FRAND (fair, reasonable, non-discriminatory) and transparent terms. Article 9 governs compensation: any compensation for making the data available must be reasonable, non-discriminatory, and where the data recipient is a micro / small / medium-sized enterprise or a not-for-profit research organisation, must not exceed the costs directly related to making the data available.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.