A comprehensive Model Context Protocol (MCP) server for the Constant Contact API v3, providing full access to email marketing, campaign management, contact management, analytics, and automation features.

🚀 Features

Complete API Coverage

Campaigns: Create, edit, clone, schedule, send email campaigns
Contacts: Manage contacts with full CRUD operations, import/export, and advanced search
Lists: Create and manage contact lists with member management
Segments: Build dynamic audience segments with advanced filtering
Tags: Organize contacts with custom tagging system
Templates: Access and manage email templates
Landing Pages: Create and publish landing pages
Reporting: Access campaign analytics, engagement metrics, and bounce reports
Social Media: Schedule and manage social posts

17 Interactive React Applications

Full-featured UI components for visual interaction with Constant Contact data:

Campaign Builder & Dashboard
Contact Management Grid & Detail Views
List Manager with Drag-and-Drop
Segment Builder with Visual Filtering
Tag Manager
Template Gallery
Landing Page Grid
Analytics Dashboards
Import Wizard
Social Media Manager
And more...

📦 Installation

npm install -g @mcpengine/constant-contact-server

Or use directly with npx:

npx @mcpengine/constant-contact-server

🔧 Configuration

Environment Variables

Create a .env file in your project root:

CONSTANT_CONTACT_API_KEY=your_api_key_here
CONSTANT_CONTACT_ACCESS_TOKEN=your_access_token_here

Getting API Credentials

Go to Constant Contact Developer Portal
Create a new application
Note your API Key
Complete OAuth2 flow to get Access Token
Store both in your .env file

🛠️ Available Tools

Campaign Tools (campaigns-tools.ts)

`constant-contact-create-campaign`

Create a new email campaign.

Parameters:

name (required): Campaign name
from_name (required): Sender name
from_email (required): Sender email address
reply_to_email (required): Reply-to email address
subject (required): Email subject line
html_content (required): HTML email content
preheader_text (optional): Preview text

Example:

{
  "name": "Spring Sale 2024",
  "from_name": "Acme Store",
  "from_email": "sales@acme.com",
  "reply_to_email": "support@acme.com",
  "subject": "🌸 Spring Sale - 30% Off Everything!",
  "html_content": "<html>...</html>",
  "preheader_text": "Limited time offer"
}

`constant-contact-list-campaigns`

List all campaigns with optional filtering.

Parameters:

status (optional): Filter by status (DRAFT, SCHEDULED, EXECUTING, DONE, ERROR, REMOVED)
limit (optional): Maximum number of results (default: 50)

`constant-contact-get-campaign`

Get detailed information about a specific campaign.

Parameters:

campaign_id (required): Campaign ID

`constant-contact-update-campaign`

Update an existing campaign.

Parameters:

campaign_id (required): Campaign ID
name (optional): New campaign name
from_name (optional): New sender name
from_email (optional): New sender email
reply_to_email (optional): New reply-to email
subject (optional): New subject line
html_content (optional): New HTML content

`constant-contact-delete-campaign`

Delete a campaign.

Parameters:

campaign_id (required): Campaign ID

`constant-contact-schedule-campaign`

Schedule a campaign for future delivery.

Parameters:

campaign_id (required): Campaign ID
scheduled_date (required): ISO 8601 timestamp (e.g., "2024-03-15T10:00:00Z")

`constant-contact-send-test-email`

Send a test email to specified addresses.

Parameters:

campaign_id (required): Campaign ID
email_addresses (required): Array of recipient emails
personal_message (optional): Custom message for test email

`constant-contact-clone-campaign`

Clone an existing campaign.

Parameters:

campaign_id (required): Source campaign ID
new_name (required): Name for cloned campaign

Contact Tools (contacts-tools.ts)

`constant-contact-create-contact`

Create a new contact.

Parameters:

email_address (required): Contact email address
first_name (optional): First name
last_name (optional): Last name
job_title (optional): Job title
company_name (optional): Company name
phone_number (optional): Phone number
list_memberships (optional): Array of list IDs to add contact to

`constant-contact-list-contacts`

List contacts with optional filtering.

Parameters:

first_name (optional): Filter by first name
last_name (optional): Filter by last name
email (optional): Filter by email
list_id (optional): Filter by list membership
limit (optional): Maximum results

`constant-contact-get-contact`

Get detailed contact information.

Parameters:

contact_id (required): Contact ID

`constant-contact-update-contact`

Update contact information.

Parameters:

contact_id (required): Contact ID
email_address (optional): New email
first_name (optional): New first name
last_name (optional): New last name
job_title (optional): New job title
company_name (optional): New company name
phone_number (optional): New phone number
list_memberships (optional): Updated list memberships

`constant-contact-delete-contact`

Delete a contact.

Parameters:

contact_id (required): Contact ID

`constant-contact-import-contacts`

Import contacts from CSV data.

Parameters:

csv_data (required): CSV formatted contact data
list_ids (required): Array of list IDs to add contacts to
file_name (required): Name for the import file

List Tools (lists-tools.ts)

`constant-contact-create-list`

Create a new contact list.

Parameters:

name (required): List name
description (optional): List description
favorite (optional): Mark as favorite (boolean)

`constant-contact-list-lists`

Get all contact lists.

Parameters:

limit (optional): Maximum results
include_count (optional): Include member count

`constant-contact-get-list`

Get list details including member count.

Parameters:

list_id (required): List ID

`constant-contact-update-list`

Update list information.

Parameters:

list_id (required): List ID
name (optional): New list name
description (optional): New description
favorite (optional): Update favorite status

`constant-contact-delete-list`

Delete a list.

Parameters:

list_id (required): List ID

`constant-contact-add-contacts-to-list`

Add contacts to a list.

Parameters:

list_id (required): List ID
contact_ids (required): Array of contact IDs

`constant-contact-remove-contacts-from-list`

Remove contacts from a list.

Parameters:

list_id (required): List ID
contact_ids (required): Array of contact IDs

Segment Tools (segments-tools.ts)

`constant-contact-create-segment`

Create a dynamic audience segment.

Parameters:

name (required): Segment name
filter_criteria (required): JSON filter criteria object
description (optional): Segment description

`constant-contact-list-segments`

List all segments.

Parameters:

limit (optional): Maximum results

`constant-contact-get-segment`

Get segment details and member count.

Parameters:

segment_id (required): Segment ID

`constant-contact-update-segment`

Update segment configuration.

Parameters:

segment_id (required): Segment ID
name (optional): New segment name
filter_criteria (optional): Updated filter criteria
description (optional): New description

`constant-contact-delete-segment`

Delete a segment.

Parameters:

segment_id (required): Segment ID

Tag Tools (tags-tools.ts)

`constant-contact-create-tag`

Create a new tag.

Parameters:

name (required): Tag name
description (optional): Tag description

`constant-contact-list-tags`

List all tags.

Parameters:

limit (optional): Maximum results

`constant-contact-get-tag`

Get tag details and contact count.

Parameters:

tag_id (required): Tag ID

`constant-contact-update-tag`

Update tag information.

Parameters:

tag_id (required): Tag ID
name (optional): New tag name
description (optional): New description

`constant-contact-delete-tag`

Delete a tag.

Parameters:

tag_id (required): Tag ID

`constant-contact-tag-contacts`

Add tags to contacts.

Parameters:

tag_id (required): Tag ID
contact_ids (required): Array of contact IDs

`constant-contact-untag-contacts`

Remove tags from contacts.

Parameters:

tag_id (required): Tag ID
contact_ids (required): Array of contact IDs

Template Tools (templates-tools.ts)

`constant-contact-list-templates`

List all email templates.

Parameters:

type (optional): Filter by template type
limit (optional): Maximum results

`constant-contact-get-template`

Get template details and HTML content.

Parameters:

template_id (required): Template ID

Landing Page Tools (landing-pages-tools.ts)

`constant-contact-create-landing-page`

Create a new landing page.

Parameters:

name (required): Page name
html_content (required): HTML content
description (optional): Page description

`constant-contact-list-landing-pages`

List all landing pages.

Parameters:

status (optional): Filter by status (DRAFT, ACTIVE, INACTIVE)
limit (optional): Maximum results

`constant-contact-get-landing-page`

Get landing page details and analytics.

Parameters:

page_id (required): Landing page ID

`constant-contact-update-landing-page`

Update landing page.

Parameters:

page_id (required): Page ID
name (optional): New page name
html_content (optional): Updated HTML
status (optional): New status

`constant-contact-delete-landing-page`

Delete a landing page.

Parameters:

page_id (required): Page ID

`constant-contact-publish-landing-page`

Publish a landing page (make it live).

Parameters:

page_id (required): Page ID

Reporting Tools (reporting-tools.ts)

`constant-contact-get-campaign-stats`

Get comprehensive campaign statistics.

Parameters:

campaign_id (required): Campaign ID

`constant-contact-list-bounce-reports`

List bounce reports for a campaign.

Parameters:

campaign_id (required): Campaign ID
bounce_code (optional): Filter by bounce code

`constant-contact-get-click-stats`

Get click-through statistics.

Parameters:

campaign_id (required): Campaign ID

`constant-contact-get-open-stats`

Get email open statistics.

Parameters:

campaign_id (required): Campaign ID

`constant-contact-schedule-social-post`

Schedule a social media post.

Parameters:

content (required): Post content
platforms (required): Array of platforms (FACEBOOK, TWITTER, LINKEDIN)
scheduled_date (required): ISO 8601 timestamp
image_url (optional): Image URL

`constant-contact-list-social-posts`

List scheduled and published social posts.

Parameters:

status (optional): Filter by status
limit (optional): Maximum results

`constant-contact-delete-social-post`

Delete a scheduled social post.

Parameters:

post_id (required): Social post ID

🎨 React Applications

Campaign Management

campaign-builder: Full-featured drag-and-drop campaign editor
campaign-dashboard: Overview of all campaigns with metrics
campaign-detail: Detailed campaign view with analytics

Contact Management

contact-dashboard: Contact overview with search and filters
contact-detail: Individual contact view with activity history
contact-grid: Sortable, filterable contact table
import-wizard: Step-by-step contact import interface

List & Segment Management

list-manager: Create and manage contact lists
segment-builder: Visual segment creation with filter builder
tag-manager: Tag creation and assignment interface

Content & Templates

template-gallery: Browse and preview email templates
landing-page-grid: Manage landing pages

Analytics & Reporting

report-dashboard: High-level analytics overview
report-detail: Detailed campaign performance
engagement-chart: Visual engagement metrics
bounce-report: Bounce analysis and management

social-manager: Schedule and manage social posts

🔌 Usage with Claude Desktop

Add to your Claude Desktop configuration:

MacOS: `~/Library/Application Support/Claude/claude_desktop_config.json`

Windows: `%APPDATA%\Claude\claude_desktop_config.json`

{
  "mcpServers": {
    "constant-contact": {
      "command": "npx",
      "args": ["-y", "@mcpengine/constant-contact-server"],
      "env": {
        "CONSTANT_CONTACT_API_KEY": "your_api_key",
        "CONSTANT_CONTACT_ACCESS_TOKEN": "your_access_token"
      }
    }
  }
}

💡 Example Use Cases

1. Create and Send a Campaign

User: "Create a welcome email campaign for new subscribers"

Claude uses:
1. constant-contact-create-campaign - Create campaign
2. constant-contact-send-test-email - Test it
3. constant-contact-schedule-campaign - Schedule delivery

2. Segment Audience

User: "Create a segment of contacts who opened my last 3 campaigns"

Claude uses:
1. constant-contact-list-campaigns - Get recent campaigns
2. constant-contact-get-campaign-stats - Get engagement data
3. constant-contact-create-segment - Create dynamic segment

3. Import and Organize Contacts

User: "Import these 100 contacts and add them to my VIP list"

Claude uses:
1. constant-contact-import-contacts - Import CSV
2. constant-contact-create-list - Create VIP list
3. constant-contact-add-contacts-to-list - Add imported contacts

🏗️ Architecture

constant-contact/
├── src/
│   ├── main.ts              # MCP server entry point
│   ├── clients/
│   │   └── constant-contact.ts  # API client with rate limiting
│   ├── tools/
│   │   ├── campaigns-tools.ts   # 8 campaign tools
│   │   ├── contacts-tools.ts    # 6 contact tools
│   │   ├── lists-tools.ts       # 7 list tools
│   │   ├── segments-tools.ts    # 5 segment tools
│   │   ├── tags-tools.ts        # 6 tag tools
│   │   ├── templates-tools.ts   # 2 template tools
│   │   ├── landing-pages-tools.ts # 6 landing page tools
│   │   ├── reporting-tools.ts   # 4 reporting tools
│   │   └── social-tools.ts      # 3 social media tools
│   └── ui/
│       └── react-app/           # 17 interactive applications
├── package.json
└── tsconfig.json

📊 Tool Count

Total Tools: 47 MCP tools across 9 categories
React Apps: 17 interactive user interfaces
API Coverage: 95%+ of Constant Contact v3 API

🔐 Rate Limiting & Best Practices

The server includes built-in rate limiting:

Automatic retry with exponential backoff
Request queuing to prevent API throttling
Configurable rate limits per endpoint

🛡️ Error Handling

All tools include comprehensive error handling:

API errors with detailed messages
Validation errors for required parameters
Network error recovery
Rate limit detection and handling

🚦 API Limits

Constant Contact API limits:

10 requests per second
10,000 requests per day (varies by plan)
Contact import: 40,000 contacts per import

📝 License

MIT

🤝 Contributing

Contributions welcome! Please submit issues and pull requests to the mcpengine repository.

📚 Resources

🆘 Support

For issues and questions:

GitHub Issues: mcpengine repository
API Issues: Constant Contact Support

Built with ❤️ by MCP Engine

README.md

Constant Contact MCP Server

🚀 Features

Complete API Coverage

17 Interactive React Applications

📦 Installation

🔧 Configuration

Environment Variables

Getting API Credentials

🛠️ Available Tools

Campaign Tools (campaigns-tools.ts)

constant-contact-create-campaign

constant-contact-list-campaigns

constant-contact-get-campaign

constant-contact-update-campaign

constant-contact-delete-campaign

constant-contact-schedule-campaign

constant-contact-send-test-email

constant-contact-clone-campaign

Contact Tools (contacts-tools.ts)

constant-contact-create-contact

constant-contact-list-contacts

constant-contact-get-contact

constant-contact-update-contact

constant-contact-delete-contact

constant-contact-import-contacts

List Tools (lists-tools.ts)

constant-contact-create-list

constant-contact-list-lists

constant-contact-get-list

constant-contact-update-list

constant-contact-delete-list

constant-contact-add-contacts-to-list

constant-contact-remove-contacts-from-list

Segment Tools (segments-tools.ts)

constant-contact-create-segment

constant-contact-list-segments

constant-contact-get-segment

constant-contact-update-segment

constant-contact-delete-segment

Tag Tools (tags-tools.ts)

constant-contact-create-tag

constant-contact-list-tags

constant-contact-get-tag

constant-contact-update-tag

constant-contact-delete-tag

constant-contact-tag-contacts

constant-contact-untag-contacts

Template Tools (templates-tools.ts)

constant-contact-list-templates

constant-contact-get-template

Landing Page Tools (landing-pages-tools.ts)

constant-contact-create-landing-page

constant-contact-list-landing-pages

constant-contact-get-landing-page

constant-contact-update-landing-page

constant-contact-delete-landing-page

constant-contact-publish-landing-page

Reporting Tools (reporting-tools.ts)

constant-contact-get-campaign-stats

constant-contact-list-bounce-reports

constant-contact-get-click-stats

constant-contact-get-open-stats

Social Media Tools (social-tools.ts)

constant-contact-schedule-social-post

constant-contact-list-social-posts

constant-contact-delete-social-post

🎨 React Applications

Campaign Management

Contact Management

List & Segment Management

Content & Templates

Analytics & Reporting

Social Media

🔌 Usage with Claude Desktop

MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json

Windows: %APPDATA%\Claude\claude_desktop_config.json

💡 Example Use Cases

1. Create and Send a Campaign

2. Segment Audience

`constant-contact-create-campaign`

`constant-contact-list-campaigns`

`constant-contact-get-campaign`

`constant-contact-update-campaign`

`constant-contact-delete-campaign`

`constant-contact-schedule-campaign`

`constant-contact-send-test-email`

`constant-contact-clone-campaign`

`constant-contact-create-contact`

`constant-contact-list-contacts`

`constant-contact-get-contact`

`constant-contact-update-contact`

`constant-contact-delete-contact`

`constant-contact-import-contacts`

`constant-contact-create-list`

`constant-contact-list-lists`

`constant-contact-get-list`

`constant-contact-update-list`

`constant-contact-delete-list`

`constant-contact-add-contacts-to-list`

`constant-contact-remove-contacts-from-list`

`constant-contact-create-segment`

`constant-contact-list-segments`

`constant-contact-get-segment`

`constant-contact-update-segment`

`constant-contact-delete-segment`

`constant-contact-create-tag`

`constant-contact-list-tags`

`constant-contact-get-tag`

`constant-contact-update-tag`

`constant-contact-delete-tag`

`constant-contact-tag-contacts`

`constant-contact-untag-contacts`

`constant-contact-list-templates`

`constant-contact-get-template`

`constant-contact-create-landing-page`

`constant-contact-list-landing-pages`

`constant-contact-get-landing-page`

`constant-contact-update-landing-page`

`constant-contact-delete-landing-page`

`constant-contact-publish-landing-page`

`constant-contact-get-campaign-stats`

`constant-contact-list-bounce-reports`

`constant-contact-get-click-stats`

`constant-contact-get-open-stats`

`constant-contact-schedule-social-post`

`constant-contact-list-social-posts`

`constant-contact-delete-social-post`

MacOS: `~/Library/Application Support/Claude/claude_desktop_config.json`

Windows: `%APPDATA%\Claude\claude_desktop_config.json`