Mailchimp MCP Server

A Model Context Protocol (MCP) server for the Mailchimp Marketing API. 74 tools to query and manage your Mailchimp account directly from Claude.

Uses the Mailchimp Marketing API via requests. Not based on the official mailchimp-marketing-python client. I hit too many issues with it so I went with raw HTTP calls instead.

Features

Read

• Campaigns - List, search, and inspect campaign details
• Reports - Open/click rates, bounces, per-link clicks, domain performance, unsubscribe details
• Email activity - Per-recipient open/click tracking, member activity history
• Audiences - Browse audiences, members, segments, tags, and growth history
• Merge fields - List custom fields for an audience
• Interest categories & groups - Browse interest categories and options
• Webhooks - List configured webhooks
• Segments - Get segment details, conditions, and member lists
• Automations - List workflows, inspect emails in a workflow, view queues
• Templates - Browse available email templates
• Landing pages - List and inspect landing pages
• E-commerce - Stores, orders, products, customers (requires e-commerce integration)
• Campaign folders - Browse folder organization
• Batch operations - Monitor bulk operation status

Write

• Members - Add, update, unsubscribe, delete, and tag contacts
• Audiences - Batch subscribe members, update audience settings
• Campaigns - Create drafts, set HTML content, schedule, unschedule, duplicate, delete, send, send test, cancel
• Segments/Tags - Create, update, delete, add/remove members, dynamic conditions
• Merge fields - Create, update, delete custom fields
• Interest categories - Create and delete categories and interests
• Webhooks - Create and delete webhooks
• Automations - Pause and start automation workflows
• Batch - Run bulk API operations in a single request

Prerequisites

• Python 3.10+
• A Mailchimp API key

Installation

Using uvx (recommended)

No installation needed — run directly:

uvx mailchimp-mcp

Using pip

pip install mailchimp-mcp

Then run:

mailchimp-mcp

From source

git clone https://github.com/damientilman/mailchimp-mcp-server.git
cd mailchimp-mcp-server
python -m venv .venv
source .venv/bin/activate
pip install -e .

Configuration

The datacenter (us8, us21, etc.) is automatically extracted from the key.

Safety modes

Read-only mode — When MAILCHIMP_READ_ONLY=true, all write tools (create, update, delete, schedule, etc.) are blocked and return an error. Read tools work normally. This is the recommended default for shared or exploratory setups where you only need reporting and analytics.

Dry-run mode — When MAILCHIMP_DRY_RUN=true, write tools return a preview of the action they would perform (tool name, target resource, parameters) without making any API call. Useful for testing prompts before going live.

Claude Desktop

Add this to your claude_desktop_config.json:

Windows (Microsoft Store): If Claude Desktop was installed via the Microsoft Store, the config file is located at C:\Users\<user>\AppData\Local\Packages\Claude_<id>\LocalCache\Roaming\Claude\claude_desktop_config.json instead of the usual %APPDATA%\Claude\ path.

{
  "mcpServers": {
    "mailchimp": {
      "command": "uvx",
      "args": ["mailchimp-mcp"],
      "env": {
        "MAILCHIMP_API_KEY": "your-api-key-here"
      }
    }
  }
}

{
  "mcpServers": {
    "mailchimp": {
      "command": "mailchimp-mcp",
      "env": {
        "MAILCHIMP_API_KEY": "your-api-key-here"
      }
    }
  }
}

{
  "mcpServers": {
    "mailchimp": {
      "command": "uvx",
      "args": ["mailchimp-mcp"],
      "env": {
        "MAILCHIMP_API_KEY": "your-api-key-here",
        "MAILCHIMP_READ_ONLY": "true"
      }
    }
  }
}

Claude Code

claude mcp add mailchimp \
  -s user \
  -e MAILCHIMP_API_KEY=your-api-key-here \
  -- uvx mailchimp-mcp

For read-only mode:

claude mcp add mailchimp \
  -s user \
  -e MAILCHIMP_API_KEY=your-api-key-here \
  -e MAILCHIMP_READ_ONLY=true \
  -- uvx mailchimp-mcp

Available Tools

Account

Campaigns (read)

Campaign Reports

Campaigns (write)

Audiences (read)

Members (read)

Members (write)

Audiences (write)

Segments & Tags

Merge Fields

Interest Categories & Groups

Webhooks

Automations

Templates

Landing Pages

E-commerce

Batch Operations

Example Prompts

Once connected, you can ask Claude things like:

• "Show me all my sent campaigns from the last 3 months"
• "What was the open rate and click rate for my last newsletter?"
• "How many subscribers did I gain this year?"
• "Which links got the most clicks in campaign X?"
• "Search for subscriber john@example.com"
• "Add tag 'VIP' to all members who opened my last campaign"
• "Create a draft campaign for my main audience with subject 'March Update'"
• "Create a campaign targeting only my VIP segment"
• "Send a test email of my draft campaign to test@example.com"
• "List all merge fields for my main audience"
• "Create a dropdown merge field called 'Industry' with options Tech, Finance, Healthcare"
• "Create a dynamic segment of members where FNAME is John"
• "Batch subscribe 50 members from this CSV data"
• "Set up a webhook to notify my app when new subscribers join"
• "Unsubscribe user@example.com from my list"
• "Show me the domain performance breakdown for my last campaign"
• "Pause my welcome automation"
• "List all orders from my Shopify store this month"

Author

Built by Damien Tilman — damien@tilman.marketing

License

MIT — see LICENSE for details.