MongoDB Lens

Name: MongoDB Lens
Author: furey

@furey

Repository Homepage

About MongoDB Lens

🍃🔎 MongoDB Lens: Full Featured MCP Server for MongoDB Databases

#mongodb #database #mcp-server

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mongodb-lens": {
      "command": "node",
      "args": [
        "--version",
        "#",
        "Ideally",
        ">=",
        "v22.x",
        "but",
        "MongoDB",
        "Lens",
        "is",
        ">=",
        "v18.x",
        "compatible"
      ]
    }
  }
}

Tools

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is MongoDB Lens?

MongoDB Lens is a local Model Context Protocol (MCP) server that provides full featured access to MongoDB databases using natural language via LLMs, enabling queries, aggregations, performance optimization, and more.

How to use MongoDB Lens?

Install via npm (npm install -g mongodb-lens) or Docker, configure by setting the MONGODB_URI environment variable, then set up your MCP client (e.g., Claude Desktop or Cursor) according to the provided client setup instructions. Run the server and explore your databases using natural language.

Key features of MongoDB Lens

Natural language querying of MongoDB databases
Execute aggregation pipelines and analyze query plans
Automatically infer collection schemas and generate validators
Perform geospatial and full-text searches
Manage databases, collections, indexes, and users
Monitor real‑time changes and replica set status

Use cases of MongoDB Lens

Explore and query a MongoDB database with conversational AI
Profile and optimize slow queries using explain plans
Automate schema analysis and validation across collections
Perform bulk data operations (insert, update, delete) with safety confirmations
Monitor database events and change streams via LLM prompts

FAQ from MongoDB Lens

What tools does MongoDB Lens provide?

MongoDB Lens offers over 40 tools including find-documents, aggregate-data, analyze-schema, create-index, transaction, watch-changes, and export-data.

Does MongoDB Lens require a specific runtime?

Yes, it requires Node.js (installed via npm) or can be run as a Docker container. Both packages are available on npm and Docker Hub.

How do I connect MongoDB Lens to my database?

Supply a MongoDB connection string via the MONGODB_URI environment variable at startup, or use the connect-mongodb tool to switch databases at runtime.

Are destructive operations protected?

Yes, operations like drop-collection, delete-document, drop-database, and others require explicit user confirmation before execution.

Which MCP clients are supported?

MongoDB Lens works with Claude Desktop and Cursor out of the box, and can be configured with any MCP‑compatible client.

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