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How to integrate MongoDB MCP with Hermes

Connect Hermes 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.

41 Tools

Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your MongoDB account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate MongoDB MCP with

ChatGPTClaude CoworkAtomic Agent

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,500+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating MongoDB with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to MongoDB

Ask your agent to connect to MongoDB, or simply request any MongoDB-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new MongoDB connection.

Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to MongoDB or request any MongoDB-related task. It will prompt you to authenticate and authorize access.

5. Done!

What is the MongoDB MCP server, and what's possible with it?

The MongoDB MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your MongoDB account. It provides structured and secure access so your agent can perform MongoDB operations on your behalf.

Way Forward

With MongoDB connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

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.

FRAMEWORKS

How to build MongoDB MCP Agent with another framework

ChatGPT logo

ChatGPT

Use MongoDB MCP with ChatGPT

Claude Cowork logo

Claude Cowork

Use MongoDB MCP with Claude Cowork

Atomic Agent logo

Atomic Agent

Use MongoDB MCP with Atomic Agent

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. Hermes 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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