Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
Built-in MCP server for ArcadeDB, a multi-model database (graph, document, key-value, time-series, vector) with SQL, Cypher, Gremlin, and MongoDB QL support.
One MCP server for PostgreSQL, MySQL, and SQLite. Unified read-only tools (listdatabases, listtables, describetable, runquery) across all three engines with two-layer read-only enforcement (SQL-text guard + DB-level read-only transactions). Install: npx -y mcp-multi-db.