MongoDB

You can interact with MongoDB databases through natural language by running a MongoDB MCP Server. It lets you inspect collection schemas, query documents with filters, manage indexes, and perform basic document operations directly from your preferred MCP client.

How to use

You connect your MCP client to the MongoDB MCP Server to start talking to your database. Use natural language prompts to inspect schemas, search for documents, manage indexes, and perform inserts, updates, or deletions. Start by configuring the server as a local or remote MCP and choose prompts that align with the available tools.

How to install

Prerequisites: Node.js 18+, npm or npx, and an MCP client (such as Claude Desktop or another MCP-enabled client). Optional: Docker and Docker Compose if you want to run a sandbox locally.

Step 1: Install the MongoDB MCP Server package for MCP clients when using a local setup. The configuration specifies how the MCP client will launch the server and connect to MongoDB.

Step 2: For a local development workflow, run the MCP server using Node and point it to your MongoDB connection string. You can specify the connection string directly in the command arguments.

Step 3: If you prefer using a remote MCP runner, you can leverage the provided CLI to install the MongoDB MCP Server for your MCP client, then configure your client to connect to it.

Additional sections

Configuration examples are shown below for two common setups. Use these exactly as written to connect to your MongoDB instance from your MCP client.

{
  "mcpServers": {
    "mongodb": {
      "command": "npx",
      "args": [
        "mongo-mcp",
        "mongodb://<username>:<password>@<host>:<port>/<database>?authSource=admin"
      ]
    }
  }
}

{
  "mcpServers": {
    "mongodb": {
      "command": "node",
      "args": [
        "dist/index.js",
        "mongodb://root:example@localhost:27017/test?authSource=admin"
      ]
    }
  }
}

Available tools

find

Query documents with filtering and projection to retrieve matching records.

listCollections

List all available collections in the connected database.

insertOne

Insert a single new document into a collection.

updateOne

Update a single document that matches a filter.

deleteOne

Delete a single document that matches a filter.

createIndex

Create a new index on a collection to optimize queries.

dropIndex

Remove an existing index from a collection.

indexes

List all indexes for a specific collection.