mailchimp-mcp 0.3.0

MCP server for the Mailchimp Marketing API — access campaigns, audiences, reports, and more from any MCP-compatible client.

Mailchimp MCP Server

The most complete Model Context Protocol (MCP) server for the Mailchimp Marketing API — 87 tools to query and manage your Mailchimp account from any MCP-compatible client, with A/B campaign support, geographic reporting, and read-only / dry-run safety modes.

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 templates and extract HTML content
• 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
• Templates - Create, update, and delete email templates
• 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

Variable	Required	Description
MAILCHIMP_API_KEY	Yes	Your Mailchimp API key (format: <key>-<dc>, e.g. abc123-us8)
MAILCHIMP_READ_ONLY	No	Set to true to disable all write operations (default: false)
MAILCHIMP_DRY_RUN	No	Set to true to preview write operations without executing them (default: false)

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.

MCP client configuration

Most MCP clients accept a JSON configuration block describing how to launch the server. Configure yours to invoke uvx mailchimp-mcp (or mailchimp-mcp if installed via pip) with MAILCHIMP_API_KEY exported in the environment.

Using uvx (recommended)

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

Using pip install

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

Read-only mode (recommended for exploration)

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

CLI-based clients

If your MCP client provides a CLI to register servers, the equivalent invocation is:

mcp-cli add mailchimp \
  -e MAILCHIMP_API_KEY=your-api-key-here \
  -- uvx mailchimp-mcp

Replace mcp-cli with your client's binary name. For read-only mode, add -e MAILCHIMP_READ_ONLY=true to the command.

Available Tools

Account

Tool	Description
get_account_info	Get account name, email, and subscriber count

Campaigns (read)

Tool	Description
list_campaigns	List campaigns with optional filters (status, date)
get_campaign_details	Get full details of a specific campaign
list_campaign_folders	List campaign folders

Campaign Reports

Tool	Description
get_campaign_report	Get performance metrics (opens, clicks, bounces)
get_campaign_click_details	Get per-link click data for a campaign
get_email_activity	Per-recipient activity (opens, clicks, bounces)
get_open_details	Who opened, when, how many times
get_campaign_recipients	List of recipients with delivery status
get_campaign_unsubscribes	Who unsubscribed after a campaign
get_domain_performance	Performance by email domain (gmail, outlook, etc.)
get_ecommerce_product_activity	Revenue per product for a campaign
get_campaign_sub_reports	Sub-reports (A/B tests, RSS, etc.)
get_campaign_advice	Mailchimp's automated post-send feedback on a campaign
get_campaign_locations	Geographic open data (country, region)
get_eepurl_activity	Social sharing stats (Twitter, Facebook, referrers)

Campaigns (write)

Tool	Description
create_campaign	Create a new campaign draft (regular or A/B variate, with optional segment targeting)
update_campaign	Update settings or segment targeting of a campaign
set_campaign_content	Set the HTML content of a campaign draft
schedule_campaign	Schedule a campaign for a specific date/time
unschedule_campaign	Unschedule a campaign (back to draft)
replicate_campaign	Duplicate an existing campaign
delete_campaign	Delete an unsent campaign
send_campaign	Send a campaign immediately
send_test_email	Send a test email for a campaign
cancel_send	Cancel a campaign that is currently sending

Audiences (read)

Tool	Description
list_audiences	List all audiences with stats
get_audience_details	Get detailed info for a specific audience
list_audience_members	List members with optional status filter
search_members	Search members by email or name
get_audience_growth_history	Monthly growth data (subscribes, unsubscribes)

Members (read)

Tool	Description
get_member_activity	Activity history of a specific contact
get_member_tags	All tags assigned to a contact
get_member_events	Custom events for a contact

Members (write)

Tool	Description
add_member	Add a new contact to an audience
update_member	Update a contact's name or status
unsubscribe_member	Unsubscribe a contact
delete_member	Permanently delete a contact
tag_member	Add or remove tags from a contact

Audiences (write)

Tool	Description
batch_subscribe	Batch add/update multiple members in an audience
update_audience	Update audience settings (name, defaults, permission reminder)
create_audience	Create a new audience with contact info and campaign defaults
delete_audience	Permanently delete an audience and all its data

Segments & Tags

Tool	Description
list_segments	List segments and tags for an audience
get_segment	Get segment details including conditions
list_segment_members	List members in a segment
create_segment	Create a new segment or tag (static or dynamic with conditions)
update_segment	Update a segment's name or conditions
delete_segment	Delete a segment or tag
add_members_to_segment	Add contacts to a segment/tag
remove_members_from_segment	Remove contacts from a segment/tag

Merge Fields

Tool	Description
list_merge_fields	List custom fields for an audience
create_merge_field	Create a new custom field (text, number, dropdown, etc.)
update_merge_field	Update a custom field
delete_merge_field	Delete a custom field

Interest Categories & Groups

Tool	Description
list_interest_categories	List interest categories for an audience
create_interest_category	Create a new interest category
list_interests	List interests within a category
create_interest	Create a new interest option
delete_interest_category	Delete an interest category
delete_interest	Delete an interest option

Webhooks

Tool	Description
list_webhooks	List webhooks for an audience
create_webhook	Create a new webhook
delete_webhook	Delete a webhook

Automations

Tool	Description
list_automations	List automated email workflows
get_automation_emails	List emails in a workflow
get_automation_email_queue	View the send queue for an automation email
pause_automation	Pause all emails in a workflow
start_automation	Start/resume all emails in a workflow

Templates

Tool	Description
list_templates	List available email templates
get_template_default_content	Get template HTML content
create_template	Create a new email template
update_template	Update template name or HTML
delete_template	Delete a user-created template

Landing Pages

Tool	Description
list_landing_pages	List all landing pages
get_landing_page	Get details of a landing page

E-commerce

Tool	Description
list_ecommerce_stores	List connected e-commerce stores
list_store_orders	List orders from a store
list_store_products	List products from a store
list_store_customers	List customers from a store

Batch Operations

Tool	Description
create_batch	Run multiple API operations in bulk
get_batch_status	Check status of a batch operation
list_batches	List recent batch operations

Example Prompts

Once connected, you can ask your MCP client to perform requests 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 [e-mail]"
• "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 [e-mail]"
• "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 [e-mail] from my list"
• "Show me the domain performance breakdown for my last campaign"
• "Where in the world did people open my newsletter? Show me the geographic breakdown."
• "Create an A/B test campaign with two subject lines and pick the winner by opens after 24 hours"
• "What advice does Mailchimp have for improving my last campaign?"
• "Pause my welcome automation"
• "List all orders from my Shopify store this month"

Contributing

Contributions are welcome. See CONTRIBUTING.md for development setup, test instructions, and pull request guidelines.

Security

If you find a security vulnerability, please follow the responsible disclosure process described in SECURITY.md.

Changelog

See CHANGELOG.md for the full release history.

Author

Built by Damien Tilman — [e-mail]

License

MIT — see LICENSE for details.