MongoDB

by kiliczsh
Verified
MIT License
1,002
167
  • Apple

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Integrations

  • Provides access to MongoDB databases, allowing LLMs to inspect collection schemas and execute MongoDB operations like queries, aggregations, updates, inserts, and creating indexes

MCP MongoDB Server


A Model Context Protocol server that enables LLMs to interact with MongoDB databases. This server provides capabilities for inspecting collection schemas and executing MongoDB operations through a standardized interface.

Demo

Key Features

Smart ObjectId Handling

  • Intelligent conversion between string IDs and MongoDB ObjectId
  • Configurable with objectIdMode parameter:
    • "auto": Convert based on field names (default)
    • "none": No conversion
    • "force": Force all string ID fields to ObjectId

Flexible Configuration

  • Environment Variables:
    • MCP_MONGODB_URI: MongoDB connection URI
    • MCP_MONGODB_READONLY: Enable read-only mode when set to "true"
  • Command-line Options:
    • --read-only or -r: Connect in read-only mode

Read-Only Mode

  • Protection against write operations (update, insert, createIndex)
  • Uses MongoDB's secondary read preference for optimal performance
  • Ideal for safely connecting to production databases

MongoDB Operations

  • Read Operations:
    • Query documents with optional execution plan analysis
    • Execute aggregation pipelines
    • Count documents matching criteria
    • Get collection schema information
  • Write Operations (when not in read-only mode):
    • Update documents
    • Insert new documents
    • Create indexes

LLM Integration

  • Collection completions for enhanced LLM interaction
  • Schema inference for improved context understanding
  • Collection analysis for data insights

Installation

Global Installation

npm install -g mcp-mongo-server

For Development

# Clone repository git clone https://github.com/kiliczsh/mcp-mongo-server.git cd mcp-mongo-server # Install dependencies npm install # Build npm run build # Development with auto-rebuild npm run watch

Usage

Basic Usage

# Start server with MongoDB URI npx -y mcp-mongo-server mongodb://muhammed:kilic@localhost:27017/database # Connect in read-only mode npx -y mcp-mongo-server mongodb://muhammed:kilic@localhost:27017/database --read-only

Environment Variables

You can configure the server using environment variables, which is particularly useful for CI/CD pipelines, Docker containers, or when you don't want to expose connection details in command arguments:

# Set MongoDB connection URI export MCP_MONGODB_URI="mongodb://muhammed:kilic@localhost:27017/database" # Enable read-only mode export MCP_MONGODB_READONLY="true" # Run server (will use environment variables if no URI is provided) npx -y mcp-mongo-server

Using environment variables in Claude Desktop configuration:

{ "mcpServers": { "mongodb-env": { "command": "npx", "args": [ "-y", "mcp-mongo-server" ], "env": { "MCP_MONGODB_URI": "mongodb://muhammed:kilic@localhost:27017/database", "MCP_MONGODB_READONLY": "true" } } } }

Using environment variables with Docker:

docker run -e MCP_MONGODB_URI="mongodb://muhammed:kilic@localhost:27017/database" \ -e MCP_MONGODB_READONLY="true" \ mcp-mongo-server

Integration with Claude Desktop

Manual Configuration

Add the server configuration to Claude Desktop's config file:

MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%/Claude/claude_desktop_config.json

Command-line Arguments Approach:

{ "mcpServers": { "mongodb": { "command": "npx", "args": [ "-y", "mcp-mongo-server", "mongodb://muhammed:kilic@localhost:27017/database" ] }, "mongodb-readonly": { "command": "npx", "args": [ "-y", "mcp-mongo-server", "mongodb://muhammed:kilic@localhost:27017/database", "--read-only" ] } } }

Environment Variables Approach:

{ "mcpServers": { "mongodb": { "command": "npx", "args": [ "-y", "mcp-mongo-server" ], "env": { "MCP_MONGODB_URI": "mongodb://muhammed:kilic@localhost:27017/database" } }, "mongodb-readonly": { "command": "npx", "args": [ "-y", "mcp-mongo-server" ], "env": { "MCP_MONGODB_URI": "mongodb://muhammed:kilic@localhost:27017/database", "MCP_MONGODB_READONLY": "true" } } } }

GitHub Package Usage:

{ "mcpServers": { "mongodb": { "command": "npx", "args": [ "-y", "github:kiliczsh/mcp-mongo-server", "mongodb://muhammed:kilic@localhost:27017/database" ] }, "mongodb-readonly": { "command": "npx", "args": [ "-y", "github:kiliczsh/mcp-mongo-server", "mongodb://muhammed:kilic@localhost:27017/database", "--read-only" ] } } }

Integration with Windsurf and Cursor

The MCP MongoDB Server can be used with Windsurf and Cursor in a similar way to Claude Desktop.

Windsurf Configuration

Add the server to your Windsurf configuration:

{ "mcpServers": { "mongodb": { "command": "npx", "args": [ "-y", "mcp-mongo-server", "mongodb://muhammed:kilic@localhost:27017/database" ] } } }

Cursor Configuration

For Cursor, add the server configuration to your settings:

{ "mcpServers": { "mongodb": { "command": "npx", "args": [ "-y", "mcp-mongo-server", "mongodb://muhammed:kilic@localhost:27017/database" ] } } }

You can also use the environment variables approach with both Windsurf and Cursor, following the same pattern shown in the Claude Desktop configuration.

Automated Installation

Using Smithery:

npx -y @smithery/cli install mcp-mongo-server --client claude

Using mcp-get:

npx @michaellatman/mcp-get@latest install mcp-mongo-server

Available Tools

Query Operations

  • query: Execute MongoDB queries
    { collection: "users", filter: { age: { $gt: 30 } }, projection: { name: 1, email: 1 }, limit: 20, explain: "executionStats" // Optional }
  • aggregate: Run aggregation pipelines
    { collection: "orders", pipeline: [ { $match: { status: "completed" } }, { $group: { _id: "$customerId", total: { $sum: "$amount" } } } ], explain: "queryPlanner" // Optional }
  • count: Count matching documents
    { collection: "products", query: { category: "electronics" } }

Write Operations

  • update: Modify documents
    { collection: "posts", filter: { _id: "60d21b4667d0d8992e610c85" }, update: { $set: { title: "Updated Title" } }, upsert: false, multi: false }
  • insert: Add new documents
    { collection: "comments", documents: [ { author: "user123", text: "Great post!" }, { author: "user456", text: "Thanks for sharing" } ] }
  • createIndex: Create collection indexes
    { collection: "users", indexes: [ { key: { email: 1 }, unique: true, name: "email_unique_idx" } ] }

System Operations

  • serverInfo: Get MongoDB server details
    { includeDebugInfo: true // Optional }

Debugging

Since MCP servers communicate over stdio, debugging can be challenging. Use the MCP Inspector for better visibility:

npm run inspector

This will provide a URL to access the debugging tools in your browser.

License

This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.

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A Model Context Protocol server that enables LLMs to interact with MongoDB databases. This server provides capabilities for inspecting collection schemas and executing MongoDB operations through a standardized interface.

  1. Demo
    1. Key Features
      1. Smart ObjectId Handling
      2. Flexible Configuration
      3. Read-Only Mode
      4. MongoDB Operations
      5. LLM Integration
    2. Installation
      1. Global Installation
      2. For Development
    3. Usage
      1. Basic Usage
      2. Environment Variables
    4. Integration with Claude Desktop
      1. Manual Configuration
      2. GitHub Package Usage:
    5. Integration with Windsurf and Cursor
      1. Windsurf Configuration
      2. Cursor Configuration
      3. Automated Installation
    6. Available Tools
      1. Query Operations
      2. Write Operations
      3. System Operations
    7. Debugging
      1. License
        ID: zc7f7d53hc