mongodb-mcp-legacy

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A Model Context Protocol (MCP) server for old MongoDB versions (3.2+) that the official MongoDB MCP Server does not support. Works with Claude Code, Codex, Cursor, and any MCP-compatible client.

The official mongodb-mcp-server uses a modern MongoDB Node.js driver that does not work with MongoDB 3.x or 4.x. If you're running a legacy MongoDB instance (3.2 -- 4.x) and want to connect it to AI tools like Claude Code or Cursor via MCP, you're stuck.

mongodb-mcp-legacy solves this by using the mongodb@3.7.4 driver, which supports MongoDB 3.2 and above.

| | mongodb-mcp-legacy | Official mongodb-mcp-server | | ---------------- | ------------------ | --------------------------- | | MongoDB version | 3.2+ | 6.0+ (modern driver) | | Node.js version | >= 16 | >= 20.19 | | Operations | Read-only | Read / Write / Atlas API | | Setup complexity | Zero config | Multiple config options |

• Legacy MongoDB support -- works with MongoDB 3.2, 3.4, 3.6, 4.0, 4.2, 4.4, and above
• Read-only operations -- safe by design, no write/update/delete tools
• MCP compatible -- works with any MCP client (Claude Code, Codex, Cursor, Windsurf, VS Code, etc.)
• Zero config -- just provide a MONGODB_URI and go
• Lightweight -- single file, minimal dependencies

• Node.js >= 16.0.0
• A MongoDB instance (version 3.2 or ab