How to integrate Moosend MCP with Hermes

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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 Moosend 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 Moosend with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,000+ 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 Moosend 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 Moosend

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

4. Done. You're all set with a new Moosend 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 Moosend or request any Moosend-related task. It will prompt you to authenticate and authorize access.

5. Done!

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

The Moosend MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Moosend account. It provides structured and secure access to your email marketing platform, so your agent can perform actions like managing subscribers, automating campaigns, creating mailing lists, and customizing audience data on your behalf.

  • Subscriber management and segmentation: Add, update, or search for subscribers in your mailing lists, letting your agent keep your audience organized and up to date.
  • Campaign creation and analytics: Retrieve, inspect, and manage email campaigns—enabling your agent to help you monitor, review, or even clean up your marketing activities.
  • Mailing list automation: Create or delete mailing lists as needed, so your agent can reorganize or streamline your audience targeting at scale.
  • Custom fields and personalization: Build or remove custom fields in your lists, empowering the agent to personalize campaigns and collect richer subscriber data.
  • Campaign and list cleanup: Direct your agent to permanently remove campaigns or mailing lists you no longer need, keeping your marketing hub tidy and efficient.

Supported Tools & Triggers

Tools
Add or Update SubscriberTool to add or update a subscriber in a mailing list.
Create custom fieldTool to create a custom field in a mailing list.
Create Mailing ListTool to create a new empty mailing list in moosend.
Delete CampaignTool to delete a campaign.
Delete custom fieldTool to remove a custom field definition from a mailing list.
Delete Mailing ListTool to delete a mailing list.
Get all campaignsTool to retrieve a list of all campaigns in your account.
Get All SubscribersTool to retrieve subscribers in a specified mailing list by status.
Get Campaign DetailsTool to retrieve detailed properties of a specific campaign.
Get Subscriber By EmailTool to search for a subscriber by email in a mailing list.
Schedule CampaignTool to schedule a campaign.
Send CampaignTool to send an existing draft campaign immediately.
Update CampaignTool to update a draft campaign.
Update custom fieldTool to update properties of an existing custom field in a mailing list.
Update Mailing ListTool to update the properties of an existing mailing list.

Way Forward

With Moosend 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.

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FAQ

What are the differences in Tool Router MCP and Moosend MCP?

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

Can I use Tool Router MCP with Hermes?

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 Moosend tools.

Can I manage the permissions and scopes for Moosend while using Tool Router?

Yes, absolutely. You can configure which Moosend 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.

How safe is my data with Composio Tool Router?

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 Moosend data and credentials are handled as safely as possible.

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