Mcp Kit

io.github.aplaceforallmystuffPublished by GitHub account aplaceforallmystuffv1.0.1Updated Oct 24, 2026

MCP server for Kit.com (ConvertKit) - manage subscribers, tags, sequences, broadcasts

Overview

AI-generated overview

Deprecated community MCP server that lets an assistant manage Kit.com (ConvertKit) subscribers, tags, sequences, broadcasts, forms and webhooks.

What you can do
  • Read account details and list subscribers with status, date and pagination filters
  • Create and update subscribers, and add or remove their tags
  • List, create, rename and delete tags, and list subscribers by tag
  • List sequences and add subscribers to them
  • List, create, update and delete broadcasts, and list or add subscribers to forms
  • List custom fields, and list, create or delete webhooks
When to use it
Only if you already depend on this community server or need a quick local bridge to a Kit.com account for newsletter and email-marketing chores. The README states the project is deprecated and unmaintained and recommends migrating to Kit's official MCP servers, so new users should start there.
Requirements
Runs locally over stdio as an npm package (kit-mcp-server) and needs Node.js 18 or newer. Requires a Kit.com account and a Kit API v4 key supplied in the KIT_API_KEY environment variable.
Before you install
The project is deprecated and no longer maintained, so it may lag behind Kit API changes. The API key grants access to your Kit account and is passed in plain configuration. Tools create, update and delete subscribers, tags, broadcasts and webhooks, and can add people to sequences and forms, which may send email to real contacts. Subscriber data is sent to Kit's API.

Installation

In SourceWeft

  1. Open Mcp Kit in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

MCP Kit Server

[Architecture]

[npm version] [CI] [License: MIT] [MCP] [Status: Deprecated]

An MCP (Model Context Protocol) server that connects AI assistants like Claude to the Kit.com (formerly ConvertKit) email marketing platform. Manage your email lists, subscribers, broadcasts, sequences, and more through natural language.

[!WARNING] This project is deprecated and no longer maintained. Kit now ships official, first-party MCP servers that supersede it with broader API coverage and managed authentication. Please migrate — see below.

⚠️ Deprecated — use Kit's official MCP servers

This community server was built before Kit offered its own MCP. Kit now maintains official servers that cover far more of the Kit API v4 surface (including analytics, commerce, segments, and bulk operations), handle auth for you, and stay current with API changes. New and existing users should migrate.

Use caseOfficial serverURL
Act on your Kit account — subscribers, tags, sequences, broadcasts, analytics, commerce…Kit MCPhttps://app.kit.com/mcp
Give a coding agent live access to Kit's developer docs + APIKit Developer Docs MCPhttps://developers.kit.com/mcp

Migrate in Claude Code

bash
# Remove this deprecated server (if you added it as "kit")claude mcp remove kit
# Add the official operational Kit MCPclaude mcp add --transport http kit https://app.kit.com/mcp
# Optional: add Kit's developer-docs MCP for building integrationsclaude mcp add --transport http kit-docs https://developers.kit.com/mcp

Official setup guides (Claude Desktop, Cursor, Windsurf, Cline, and more): https://developers.kit.com/mcp/kit-developer-docs-mcp/mcp/overview


📦 Legacy documentation (for historical reference)

Why Use This?

If you run a newsletter or email marketing on Kit.com, this MCP server lets you:

  • Manage subscribers - List, create, update, and organize your email subscribers
  • Handle tags efficiently - Create tags, add/remove tags from subscribers, list subscribers by tag
  • Work with sequences - View email sequences and add subscribers to automated sequences
  • Create broadcasts - Draft and manage email campaigns
  • Analyze your list - Query subscriber data with filters (status, date ranges, custom fields)
  • Automate workflows - Let Claude handle repetitive email marketing tasks

Features

CategoryTools
AccountGet account information
SubscribersList, get, create, update, manage tags
TagsList, create, update, delete, get subscribers by tag
SequencesList, get, add subscribers
BroadcastsList, get, create, update, delete
FormsList, get, add subscribers
Custom FieldsList available fields
WebhooksList, create, delete

Complete Tool Reference

Account

  • kit_get_account - Get Kit.com account information

Subscribers (7 tools)

  • kit_list_subscribers - List subscribers with filters (status, date ranges, pagination)
  • kit_get_subscriber - Get a specific subscriber by ID
  • kit_create_subscriber - Create a new subscriber
  • kit_update_subscriber - Update subscriber details
  • kit_get_subscriber_tags - Get all tags for a subscriber
  • kit_add_tag_to_subscriber - Add a tag to a subscriber
  • kit_remove_tag_from_subscriber - Remove a tag from a subscriber

Tags (6 tools)

  • kit_list_tags - List all tags
  • kit_get_tag - Get a specific tag
  • kit_create_tag - Create a new tag
  • kit_update_tag - Rename a tag
  • kit_delete_tag - Delete a tag
  • kit_list_tag_subscribers - List all subscribers with a specific tag

Sequences (3 tools)

  • kit_list_sequences - List all email sequences
  • kit_get_sequence - Get sequence details
  • kit_add_subscriber_to_sequence - Add subscriber to a sequence

Broadcasts (5 tools)

  • kit_list_broadcasts - List all broadcasts
  • kit_get_broadcast - Get broadcast details
  • kit_create_broadcast - Create a new broadcast
  • kit_update_broadcast - Update a broadcast
  • kit_delete_broadcast - Delete a broadcast

Forms (3 tools)

  • kit_list_forms - List all forms
  • kit_get_form - Get form details
  • kit_add_subscriber_to_form - Add subscriber via form

Custom Fields (1 tool)

  • kit_list_custom_fields - List all custom fields

Webhooks (3 tools)

  • kit_list_webhooks - List configured webhooks
  • kit_create_webhook - Create a new webhook
  • kit_delete_webhook - Delete a webhook

Prerequisites

  • Node.js 18+
  • A Kit.com account
  • Your Kit.com API key (v4 API)

Installation

Option 1: Install from npm (recommended)

bash
npx kit-mcp-server

Or install globally:

bash
npm install -g kit-mcp-server

Option 2: Clone and Build

bash
git clone https://github.com/aplaceforallmystuff/mcp-kit.gitcd mcp-kitnpm installnpm run build

Configuration

1. Get Your Kit.com API Key

  1. Log in to Kit.com
  2. Navigate to Settings > Developer
  3. Create a new API key or copy an existing v4 API key

2. Configure Your MCP Client

For Claude Desktop

Add to your Claude Desktop config file:

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

Windows: %APPDATA%\Claude\claude_desktop_config.json

json
{  "mcpServers": {    "kit": {      "command": "node",      "args": ["/path/to/mcp-kit/dist/index.js"],      "env": {        "KIT_API_KEY": "your-api-key-here"      }    }  }}
For Claude Code
bash
claude mcp add kit -e KIT_API_KEY=your-api-key-here -- node /path/to/mcp-kit/dist/index.js

Or add to ~/.claude.json:

json
{  "mcpServers": {    "kit": {      "command": "node",      "args": ["/path/to/mcp-kit/dist/index.js"],      "env": {        "KIT_API_KEY": "your-api-key-here"      }    }  }}

Usage Examples

Once configured, you can interact with Kit.com through natural language:

Subscriber Management

"Show me all active subscribers from the last 30 days"

"Create a new subscriber with email [email protected] and tag them as 'newsletter'"

"What tags does [email protected] have?"

Tag Operations

"List all my tags and how many subscribers each has"

"Create a tag called 'VIP Customers'"

"Add the 'engaged' tag to all subscribers who signed up this month"

Email Sequences

"Show me all my email sequences"

"Add [email protected] to the welcome sequence"

Broadcasts

"Create a draft broadcast with subject 'Weekly Update' and preview text 'This week in AI...'"

"List all my recent broadcasts and their stats"

Forms

"Show me all active forms"

"Add a subscriber to my main signup form"

Development

bash
# Run in development mode (watches for changes)npm run dev
# Build for productionnpm run build
# Run the built versionnpm start

Troubleshooting

"KIT_API_KEY environment variable is required"

Ensure you have set the KIT_API_KEY environment variable in your MCP configuration.

"Kit API error (401)"

Your API key is invalid or expired. Generate a new one from Kit.com Settings > Developer.

"Kit API error (403)"

Your API key doesn't have permission for this operation. Check that you're using a v4 API key with appropriate scopes.

"Kit API error (404)"

The resource (subscriber, tag, broadcast, etc.) was not found. Verify the ID is correct.

"Kit API error (422)"

Invalid request data. Check that email addresses are valid and required fields are provided.

API Reference

This server uses the Kit.com API v4. All tools support pagination where applicable using per_page and after cursor parameters.

Contributing

This project is deprecated and not accepting contributions. Please use Kit's official MCP servers instead.

License

MIT License - see LICENSE for details.

Links

Source: README.md at commit edcfdc3

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.1LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts