Silver criterion interfaces_current (SHOULD; group Quality, Externally-maintained components). Criterion text: The project SHOULD avoid using deprecated or obsolete functions and APIs where FLOSS alternatives are available in the set of technology it uses (its "technology stack") and to a supermajority of the users the project supports (so that users have ready access to the alternative).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.