The answer
@jinzcdev/markmap-mcp-server
Top verified match: it matches your intent, corroborated across multiple registries.
fresh · published 11d ago · verified 2026-07-11tested · static-verifiedsigned passport ✓score 58/1002,599 monthly downloads
claude mcp add markmap-mcp-server -- npx -y @xinyoutai/markmap-mcp-server