MongoDB Lens

MongoDB Lens is an open-source, locally-run Model Context Protocol (MCP) server that lets developers work with MongoDB databases through natural language in LLM clients like Claude Desktop and Cursor. It covers queries, aggregation pipelines, schema inference, index and performance optimization, and administrative operations, with a built-in confirmation step that guards destructive actions like drops and deletes. It's aimed at developers and database engineers who want conversational access to full-featured MongoDB management rather than a limited read-only query bridge.