agentmail-mcp 0.2.3

AgentMail MCP server for AI assistant email integration

AgentMail MCP Integration

A simple Model Context Protocol (MCP) server that integrates with AgentMail to dynamically manage email inboxes, list messages, and send or reply to emails—all through an AI assistant such as Claude. This reference implementation demonstrates how to use AgentMail’s API within an MCP server to orchestrate email inboxes on the fly.

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Important Note

This is a work in progress package as the MCP protocol is still evolving. Will update as soon as new features are added. Join our discord! Discord

Features

• Create new inboxes dynamically on the fly
• List and retrieve inboxes to see what’s active
• Send emails from any of your AgentMail inboxes
• Reply to messages within existing threads
• List threads and messages for a chosen inbox
• Retrieve attachments for messages

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Prerequisites

• Python 3.10+
• AgentMail API key
• (Optional) Claude Desktop or any other front-end that supports MCP commands

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Installation

There exists a PyPi package for this project. Once installed, you can reference it in your Claude Desktop configuration (or run it directly) to enable email management tools.

PIP (Local or PyPI)

If you maintain your own Python environment, simply install the package from your virtual enviornment (from PyPI or a local source):

pip install agentmail-mcp

Then run:

agentmail-mcp –api-key=“YOUR_AGENTMAIL_API_KEY”

This will get the server running on your local machine.

Option 1: Using Claude Desktop

If you want to interact with the server from Claude Desktop, follow these exact steps.

1. Activate your virtual environment.

source .venv/bin/activate

2. Run the line below to find out where the MCP server is located. It should be in some .venv/bin/ directory.

which agentmail-mcp

3. Copy the path that is returned.

4. Paste the path into the command field in the claude_desktop_config.json file.

5. Restart Claude Desktop.

Here is what the claude_desktop_config.json file should look like:

{
  "mcpServers": {
    "agentmail-mcp": {
      "command": "/path/to/agentmail-mcp",
      "args": ["--api-key", "{AGENT_MAIL_API_KEY}"]
    }
  }
}

If you don't have a claude_desktop_config.json file, create one in the following directory:

On macOS, the config file is typically located at: ~/Library/Application Support/Claude/claude_desktop_config.json

On Windows, it’s usually located at: %APPDATA%/Claude/claude_desktop_config.json

After saving, restart Claude Desktop to load the new MCP server.

Option 2: Using Cursor

1. Navigate to cursor settings and click on the features tab, and scroll down to the MCP section.
2. Open the terminal and run the following command to find out where the MCP server is located. It should be in some .venv/bin/ directory. Copy this path.

which agentmail-mcp

2. Click on the "+" button to add a new MCP server.
3. Enter the following information:
   • Name: agentmail
   • type: command
   • command: {path_to_agentmail_mcp} --api-key {AGENT_MAIL_API_KEY}
4. Click on the "Save" button.

Make sure to change Cursor to Agent Mode.

Then ask it: "What mcp tools do you have access to?"

Now you're ready!

Usage

With your server running in Claude Desktop (or another MCP client), you can prompt Claude with natural language commands that map to AgentMail MCP tools. For example: • “Create a new inbox named demo.” • “List all my inboxes.” • “Send an email from inbox [e-mail] to [e-mail] with subject ‘Hello’ and body explaining the weather in San Francisco for the past week. • “Reply to the most recent message in inbox abc123.”

Internally, Claude calls the exposed MCP tools (create_inbox, list_inboxes, send_message, etc.), which in turn call the AgentMail API.

License

License

MIT License - This project is distributed under the MIT license. Use at your own risk.

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