The answer
io.github.0xsims/rubric-mcp
Top verified match: it matches your intent, corroborated across multiple registries.
fresh · published 7d ago · verified 2026-08-01tested · static-verifiedsigned passport ✓score 41/100
claude mcp add rubric-mcp -- npx -y @rubric-protocol/mcp-server
Runners-up
- io.github.0xsims/rubric-protocol35/100 · weaker match