MongoDB Mongoose MCP

An MCP (Model Context Protocol) server that enables Claude to interact with MongoDB databases, with optional Mongoose schema support.

Features

• Query, aggregation, insert, update, and manage MongoDB collections directly from Claude
• Optional Mongoose schema support for data validation and hooks
• Soft delete implementation for document safety
• Clean separation between schema-based and schemaless operations

Prerequisites

• Node.js (v18 or higher)
• MongoDB

Integrating with Claude Desktop

To add the MCP server to Claude Desktop:

1. Go to Settings > Developer > Edit config

2. Add the following to your claude_desktop_config.json file:

{
  "mcpServers": {
    "mongodb-mongoose": {
      "command": "npx",
      "args": [
        "-y", 
        "mongo-mongoose-mcp",
      ],
      "env": {
        "MONGODB_URI": "",
        "SCHEMA_PATH" : ""
      }
    }
  }
}

Available MCP Commands

When integrated with Claude, the following commands become available:

Query Tools

• find: Query documents with filtering and projection
• listCollections: List available collections
• insertOne: Insert a single document
• updateOne: Update a single document
• deleteOne: Soft delete a single document
• count: Count documents with filtering
• aggregate: Query documents with aggregation pipeline

Index Tools

• createIndex: Create a new index
• dropIndex: Remove an index
• indexes: List indexes for a collection

Example Usage

Once integrated with Claude Desktop, you can use natural language to interact with your MongoDB database:

• "Show me all users in my database who are older than 30"
• "Insert a new product with name 'Widget X', price $29.99, and category 'Electronics'"
• "Count all completed orders from the past week"
• "Create an index on the email field of the users collection"

For Developers

Building from Source

# Clone the repository
git clone https://github.com/nabid-pf/mongo-mongoose-mcp.git
cd mongo-mongoose-mcp

# Install dependencies
npm install

# Build the project
npm run build

# Test with the MCP inspector
npx @modelcontextprotocol/inspector node dist/index.js

Creating Mongoose Schemas

Place your Mongoose schema object files in the a directory and specify that path in SCHEMA_PATH var

Make sure file names reflect the collection name

// models/users.js (for users collection)
export default {
  name: { type: String, required: true },
  email: { type: String, required: true, unique: true },
  age: Number,
  createdAt: { type: Date, default: Date.now },
  isDeleted: { type: Boolean, default: false },
  deletedAt: Date
};

How It Works

This project uses:

• MongoDB native driver for direct database operations
• Mongoose for schema-based operations when schemas are available
• The Model Context Protocol (MCP) to communicate with Claude

License

MIT