Marketplace mailchimp-automation

Automate Mailchimp email marketing including campaigns, audiences, subscribers, segments, and analytics via Rube MCP (Composio). Always search tools first for current schemas.

install
source · Clone the upstream repo
git clone https://github.com/aiskillstore/marketplace
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/aiskillstore/marketplace "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/sickn33/mailchimp-automation" ~/.claude/skills/aiskillstore-marketplace-mailchimp-automation && rm -rf "$T"
manifest: skills/sickn33/mailchimp-automation/SKILL.md
source content

Mailchimp Automation via Rube MCP

Automate Mailchimp email marketing workflows including campaign creation and sending, audience/list management, subscriber operations, segmentation, and performance analytics through Composio's Mailchimp toolkit.

Prerequisites

  • Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
  • Active Mailchimp connection via
    RUBE_MANAGE_CONNECTIONS
    with toolkit
    mailchimp
  • Always call
    RUBE_SEARCH_TOOLS
    first to get current tool schemas

Setup

Get Rube MCP: Add

https://rube.app/mcp
as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.

  1. Verify Rube MCP is available by confirming
    RUBE_SEARCH_TOOLS
    responds
  2. Call
    RUBE_MANAGE_CONNECTIONS
    with toolkit
    mailchimp
  3. If connection is not ACTIVE, follow the returned auth link to complete Mailchimp OAuth
  4. Confirm connection status shows ACTIVE before running any workflows

Core Workflows

1. Create and Send Email Campaigns

When to use: User wants to create, configure, test, and send an email campaign.

Tool sequence:

  1. MAILCHIMP_GET_LISTS_INFO
    - List available audiences and get list_id [Prerequisite]
  2. MAILCHIMP_ADD_CAMPAIGN
    - Create a new campaign with type, audience, subject, from name [Required]
  3. MAILCHIMP_SET_CAMPAIGN_CONTENT
    - Set HTML content for the campaign [Required]
  4. MAILCHIMP_SEND_TEST_EMAIL
    - Send preview to reviewers before live send [Optional]
  5. MAILCHIMP_SEND_CAMPAIGN
    - Send the campaign immediately [Required]
  6. MAILCHIMP_SCHEDULE_CAMPAIGN
    - Schedule for future delivery instead of immediate send [Optional]

Key parameters for MAILCHIMP_ADD_CAMPAIGN:

  • type
    : "regular", "plaintext", "rss", or "variate" (required)
  • recipients__list__id
    : Audience/list ID for recipients
  • settings__subject__line
    : Email subject line
  • settings__from__name
    : Sender display name
  • settings__reply__to
    : Reply-to email address (required for sending)
  • settings__title
    : Internal campaign title
  • settings__preview__text
    : Preview text shown in inbox

Key parameters for MAILCHIMP_SET_CAMPAIGN_CONTENT:

  • campaign_id
    : Campaign ID from creation step (required)
  • html
    : Raw HTML content for the email
  • plain_text
    : Plain-text version (auto-generated if omitted)
  • template__id
    : Use a pre-built template instead of raw HTML

Pitfalls:

  • MAILCHIMP_SEND_CAMPAIGN
    is irreversible; always send a test email first and get explicit user approval
  • Campaign must be in "save" (draft) status with valid audience, subject, from name, verified email, and content before sending
  • MAILCHIMP_SCHEDULE_CAMPAIGN
    requires a valid future datetime; past timestamps fail
  • Templates and HTML content must include compliant footer/unsubscribe merge tags
  • Mailchimp uses double-underscore notation for nested params (e.g.,
    settings__subject__line
    )

2. Manage Audiences and Subscribers

When to use: User wants to view audiences, list subscribers, or check subscriber details.

Tool sequence:

  1. MAILCHIMP_GET_LISTS_INFO
    - List all audiences with member counts [Required]
  2. MAILCHIMP_GET_LIST_INFO
    - Get details for a specific audience [Optional]
  3. MAILCHIMP_LIST_MEMBERS_INFO
    - List members with status filter and pagination [Required]
  4. MAILCHIMP_SEARCH_MEMBERS
    - Search by email or name across lists [Optional]
  5. MAILCHIMP_GET_MEMBER_INFO
    - Get detailed profile for a specific subscriber [Optional]
  6. MAILCHIMP_LIST_SEGMENTS
    - List segments within an audience [Optional]

Key parameters for MAILCHIMP_LIST_MEMBERS_INFO:

  • list_id
    : Audience ID (required)
  • status
    : "subscribed", "unsubscribed", "cleaned", "pending", "transactional", "archived"
  • count
    : Records per page (default 10, max 1000)
  • offset
    : Pagination offset (default 0)
  • sort_field
    : "timestamp_opt", "timestamp_signup", or "last_changed"
  • fields
    : Comma-separated list to limit response size

Pitfalls:

  • stats.avg_open_rate
    and
    stats.avg_click_rate
    are 0-1 fractions, NOT 0-100 percentages
  • Always use
    status="subscribed"
    to filter active subscribers; omitting returns all statuses
  • Must paginate using
    count
    and
    offset
    until collected members match
    total_items
  • Large list responses may be truncated; data is under
    response.data.members

3. Add and Update Subscribers

When to use: User wants to add new subscribers, update existing ones, or bulk-manage list membership.

Tool sequence:

  1. MAILCHIMP_GET_LIST_INFO
    - Validate target audience exists [Prerequisite]
  2. MAILCHIMP_SEARCH_MEMBERS
    - Check if contact already exists [Optional]
  3. MAILCHIMP_ADD_OR_UPDATE_LIST_MEMBER
    - Upsert subscriber (create or update) [Required]
  4. MAILCHIMP_ADD_MEMBER_TO_LIST
    - Add new subscriber (create only) [Optional]
  5. MAILCHIMP_BATCH_ADD_OR_REMOVE_MEMBERS
    - Bulk manage segment membership [Optional]

Key parameters for MAILCHIMP_ADD_OR_UPDATE_LIST_MEMBER:

  • list_id
    : Audience ID (required)
  • subscriber_hash
    : MD5 hash of lowercase email (required)
  • email_address
    : Subscriber email (required)
  • status_if_new
    : Status for new subscribers: "subscribed", "pending", etc. (required)
  • status
    : Status for existing subscribers
  • merge_fields
    : Object with merge tag keys (e.g.,
    {"FNAME": "John", "LNAME": "Doe"}
    )
  • tags
    : Array of tag strings

Key parameters for MAILCHIMP_ADD_MEMBER_TO_LIST:

  • list_id
    : Audience ID (required)
  • email_address
    : Subscriber email (required)
  • status
    : "subscribed", "pending", "unsubscribed", "cleaned", "transactional" (required)

Pitfalls:

  • subscriber_hash
    must be MD5 of the lowercase email; incorrect casing causes 404s or duplicates
  • Use
    MAILCHIMP_ADD_OR_UPDATE_LIST_MEMBER
    (upsert) instead of
    MAILCHIMP_ADD_MEMBER_TO_LIST
    to avoid duplicate errors
  • status_if_new
    determines status only for new contacts; existing contacts use
    status
  • Use
    skip_merge_validation: true
    to bypass required merge field validation
  • MAILCHIMP_BATCH_ADD_OR_REMOVE_MEMBERS
    manages static segment membership, not list membership

4. View Campaign Reports and Analytics

When to use: User wants to review campaign performance, open rates, click rates, or subscriber engagement.

Tool sequence:

  1. MAILCHIMP_LIST_CAMPAIGNS
    - List sent campaigns with report summaries [Required]
  2. MAILCHIMP_SEARCH_CAMPAIGNS
    - Find campaigns by name, subject, or content [Optional]
  3. MAILCHIMP_GET_CAMPAIGN_REPORT
    - Get detailed performance report for a campaign [Required]
  4. MAILCHIMP_LIST_CAMPAIGN_REPORTS
    - Bulk fetch reports across multiple campaigns [Optional]
  5. MAILCHIMP_LIST_CAMPAIGN_DETAILS
    - Get link-level click statistics [Optional]
  6. MAILCHIMP_GET_CAMPAIGN_LINK_DETAILS
    - Drill into specific link click data [Optional]
  7. MAILCHIMP_LIST_CLICKED_LINK_SUBSCRIBERS
    - See who clicked a specific link [Optional]
  8. MAILCHIMP_GET_SUBSCRIBER_EMAIL_ACTIVITY
    - Get per-subscriber campaign activity [Optional]
  9. MAILCHIMP_GET_CAMPAIGN_CONTENT
    - Retrieve campaign HTML content [Optional]

Key parameters for MAILCHIMP_LIST_CAMPAIGNS:

  • status
    : "save", "paused", "schedule", "sending", "sent"
  • count
    /
    offset
    : Pagination (default 10, max 1000)
  • since_send_time
    /
    before_send_time
    : ISO 8601 date range filter
  • sort_field
    : "create_time" or "send_time"
  • fields
    : Limit response fields for performance

Key parameters for MAILCHIMP_GET_CAMPAIGN_REPORT:

  • campaign_id
    : Campaign ID (required)
  • Returns: opens, clicks, bounces, unsubscribes, timeseries, industry_stats

Pitfalls:

  • MAILCHIMP_LIST_CAMPAIGNS
    only returns high-level
    report_summary
    ; use
    MAILCHIMP_GET_CAMPAIGN_REPORT
    for detailed metrics
  • Draft/unsent campaigns lack meaningful report data
  • When using
    fields
    parameter on LIST_CAMPAIGNS, explicitly request
    send_time
    and
    report_summary
    subfields
  • Pagination defaults are low (10 records); iterate with
    count
    and
    offset
    until
    total_items
    is covered
  • send_time
    is ISO 8601 with timezone; parse carefully

Common Patterns

ID Resolution

Always resolve names to IDs before operations:

  • Audience name -> list_id:
    MAILCHIMP_GET_LISTS_INFO
    and match by name
  • Subscriber email -> subscriber_hash: Compute MD5 of lowercase email in code
  • Campaign name -> campaign_id:
    MAILCHIMP_SEARCH_CAMPAIGNS
    with query
  • Segment name -> segment_id:
    MAILCHIMP_LIST_SEGMENTS
    with list_id

Pagination

Mailchimp uses offset-based pagination:

  • Use
    count
    (page size, max 1000) and
    offset
    (skip N records)
  • Continue until collected records match
    total_items
    from the response
  • Default
    count
    is 10; always set explicitly for bulk operations
  • Search endpoints max at 10 pages (300 results for 30/page)

Subscriber Hash

Many endpoints require

subscriber_hash
(MD5 of lowercase email):

import hashlib
subscriber_hash = hashlib.md5(email.lower().encode()).hexdigest()

Known Pitfalls

ID Formats

  • list_id
    (audience ID) is a short alphanumeric string (e.g., "abc123def4")
  • campaign_id
    is an alphanumeric string
  • subscriber_hash
    is an MD5 hex string (32 characters)
  • Segment IDs are integers

Rate Limits

  • Mailchimp enforces API rate limits; use batching for bulk subscriber operations
  • High-volume use of GET_MEMBER_INFO and ADD_OR_UPDATE_LIST_MEMBER can trigger throttling
  • Use
    MAILCHIMP_BATCH_ADD_OR_REMOVE_MEMBERS
    for bulk segment operations

Parameter Quirks

  • Nested parameters use double-underscore notation:
    settings__subject__line
    ,
    recipients__list__id
  • avg_open_rate
    and
    avg_click_rate
    are 0-1 fractions, not percentages
  • status_if_new
    only applies to new contacts in upsert operations
  • subscriber_hash
    must be MD5 of lowercase email; wrong casing creates phantom records
  • Campaign
    type
    is required for creation; most common is "regular"
  • MAILCHIMP_SEND_CAMPAIGN
    returns HTTP 204 on success (no body)

Content and Compliance

  • Campaign HTML must include unsubscribe link and physical address (merge tags)
  • Content must be set via
    MAILCHIMP_SET_CAMPAIGN_CONTENT
    before sending
  • Test emails require campaign to have content already set

Quick Reference

TaskTool SlugKey Params
List audiences
MAILCHIMP_GET_LISTS_INFO
count
,
offset
Get audience details
MAILCHIMP_GET_LIST_INFO
list_id
Create campaign
MAILCHIMP_ADD_CAMPAIGN
type
,
recipients__list__id
,
settings__subject__line
Set campaign content
MAILCHIMP_SET_CAMPAIGN_CONTENT
campaign_id
,
html
Send test email
MAILCHIMP_SEND_TEST_EMAIL
campaign_id
,
test_emails
Send campaign
MAILCHIMP_SEND_CAMPAIGN
campaign_id
Schedule campaign
MAILCHIMP_SCHEDULE_CAMPAIGN
campaign_id
,
schedule_time
Get campaign info
MAILCHIMP_GET_CAMPAIGN_INFO
campaign_id
Search campaigns
MAILCHIMP_SEARCH_CAMPAIGNS
query
List campaigns
MAILCHIMP_LIST_CAMPAIGNS
status
,
count
,
offset
Replicate campaign
MAILCHIMP_REPLICATE_CAMPAIGN
campaign_id
List subscribers
MAILCHIMP_LIST_MEMBERS_INFO
list_id
,
status
,
count
,
offset
Search members
MAILCHIMP_SEARCH_MEMBERS
query
,
list_id
Get member info
MAILCHIMP_GET_MEMBER_INFO
list_id
,
subscriber_hash
Add subscriber
MAILCHIMP_ADD_MEMBER_TO_LIST
list_id
,
email_address
,
status
Upsert subscriber
MAILCHIMP_ADD_OR_UPDATE_LIST_MEMBER
list_id
,
subscriber_hash
,
email_address
,
status_if_new
Batch members
MAILCHIMP_BATCH_ADD_OR_REMOVE_MEMBERS
list_id
,
segment_id
List segments
MAILCHIMP_LIST_SEGMENTS
list_id
Campaign report
MAILCHIMP_GET_CAMPAIGN_REPORT
campaign_id
All reports
MAILCHIMP_LIST_CAMPAIGN_REPORTS
count
,
offset
Link click details
MAILCHIMP_LIST_CAMPAIGN_DETAILS
campaign_id
,
count
Subscriber activity
MAILCHIMP_GET_SUBSCRIBER_EMAIL_ACTIVITY
campaign_id
,
subscriber_hash
Member recent activity
MAILCHIMP_VIEW_RECENT_ACTIVITY
list_id
,
subscriber_hash
Campaign content
MAILCHIMP_GET_CAMPAIGN_CONTENT
campaign_id