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How to connect MongoDB MCP with ChatGPT

Connect ChatGPT to MongoDB MCP. List collections in your production database, query top slow queries from cluster, and more using natural language, with authentication handled for you.

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MongoDB MCP is MongoDB's managed interface for accessing Atlas resources and data. Use it for secure, centralized access to clusters, databases, and collections.

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How to connect MongoDB MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your MongoDB account to ChatGPT via Composio Connect, so it can inspect clusters, query your databases, read and write collection documents, manage indexes, and analyze performance metrics through natural language commands without ever putting your account credentials at risk.

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's MongoDB integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect MongoDB to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread MongoDB messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize MongoDB.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting MongoDB

  • List collections in your production database
  • Query top slow queries from cluster
  • Create index on users.email field

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
TOOLS

Supported Tools

Every MongoDB MCP action and event your agent gets out of the box.

Aggregate

Run an aggregation against a MongoDB collection

Aggregate-db

Run an aggregation against a MongoDB database

Atlas-create-access-list

Allow Ip/CIDR ranges to access your MongoDB Atlas clusters.

Atlas-create-cluster

Create a MongoDB Atlas cluster (M10–M80, replica set or single shard, single or multi-region).

Atlas-create-db-user

Create an MongoDB Atlas database user

Atlas-create-free-cluster

Create a free MongoDB Atlas cluster

Atlas-create-project

Create a MongoDB Atlas project

Atlas-get-performance-advisor

Get MongoDB Atlas performance advisor recommendations and suggestions, which includes the operations: suggested indexes, drop index suggestions, schema suggestions, and a sample of the most recent (max 50) slow query logs

Atlas-inspect-access-list

Inspect Ip/CIDR ranges with access to your MongoDB Atlas clusters.

Atlas-inspect-cluster

Inspect metadata of a MongoDB Atlas cluster

Atlas-list-alerts

List triggered alerts for a MongoDB Atlas project.

Atlas-list-clusters

List MongoDB Atlas clusters

Atlas-list-db-users

List MongoDB Atlas database users

Atlas-list-orgs

List MongoDB Atlas organizations

Atlas-list-projects

List MongoDB Atlas projects.

Atlas-load-sample-dataset

Load a MongoDB sample dataset into an Atlas cluster, or check the status of a previously-initiated load.

Atlas-pause-resume-cluster

Pause or resume a dedicated (M10+) MongoDB Atlas cluster (Free and Flex clusters cannot be paused).

Atlas-streams-build

Create Atlas Stream Processing resources.

Atlas-streams-discover

Discover and inspect Atlas Stream Processing resources.

Atlas-streams-manage

Manage Atlas Stream Processing resources: start/stop processors, modify pipelines, update configurations.

Atlas-streams-teardown

Delete Atlas Stream Processing resources.

Atlas-upgrade-cluster

Upgrade a MongoDB Atlas cluster tier.

Collection-indexes

Describe the indexes for a collection

Collection-schema

Describe the schema for a collection

Collection-storage-size

Gets the size of the collection

Count

Gets the number of documents in a MongoDB collection using db.

Create-collection

Creates a new collection in a database.

Create-index

Create an index for a collection

Db-stats

Returns statistics that reflect the use state of a single database

Delete-many

Removes all documents that match the filter from a MongoDB collection

Drop-collection

Removes a collection or view from the database.

Drop-database

Removes the specified database, deleting the associated data files

Drop-index

Drop an index for the provided database and collection.

Explain

Returns statistics describing the execution of the winning plan chosen by the query optimizer for the evaluated method

Find

Run a find query against a MongoDB collection

Insert-many

Insert an array of documents into a MongoDB collection.

List-collections

List all collections for a given database

List-databases

List all databases for a MongoDB connection

Remote-atlas-connect

Connect to MongoDB Atlas cluster

Rename-collection

Renames a collection in a MongoDB database

Update-many

Updates all documents that match the specified filter for a collection.

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FAQ

Frequently asked questions

With a standalone MongoDB MCP server, the agents and LLMs can only access a fixed set of MongoDB tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from MongoDB and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. ChatGPT fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right MongoDB tools.

Yes, absolutely. You can configure which MongoDB scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your MongoDB data and credentials are handled as safely as possible.

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