Kit MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Kit MCP or direct API to automate tasks, send emails, read and update app data, and manage Kit workflows through natural language.
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30 min · no commitment · see it on your stack

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Enter a prompt below to test the integration in our Tool Router playground. You'll be redirected to sign in and try it live.

Supported Tools

Tools
Add Subscriber to FormAdd an existing subscriber to a form by their IDs.
Add Subscriber to Form by EmailTool to add an existing subscriber to a form using their email address.
Create BroadcastTool to create a new broadcast (email campaign) to send to subscribers.
Create Custom FieldTool to create a new custom field for subscriber data.
Create SubscriberTool to create a new subscriber or update an existing one (upsert).
Create TagTool to create a new tag in the account.
Create WebhookCreates a webhook subscription for real-time event notifications.
Delete BroadcastTool to delete a specific broadcast.
Delete Custom FieldTool to delete a specific custom field.
Delete SubscriberUnsubscribe a subscriber from all email communications by their ID.
Delete TagTool to delete a tag by ID.
Delete WebhookTool to delete a webhook by ID.
Filter SubscribersTool to filter subscribers based on engagement criteria such as email opens, clicks, or delivery status.
Get AccountTool to retrieve current account information.
Get Account ColorsTool to retrieve list of colors associated with the account.
Get BroadcastTool to retrieve details of a specific broadcast by ID.
Get Broadcast ClicksTool to retrieve link click data for a specific broadcast by ID.
Get Broadcast StatsTool to retrieve statistics for a specific broadcast by ID.
Get Creator ProfileTool to retrieve the creator profile information for the account.
Get Email StatsTool to retrieve email statistics for the account.
Get Growth StatsTool to retrieve growth statistics for the account over a date range.
Get SubscriberTool to retrieve a specific subscriber by their ID.
Get Subscriber StatsTool to retrieve email stats for a specific subscriber.
List BroadcastsTool to retrieve a paginated list of all broadcasts.
List Custom FieldsTool to retrieve a paginated list of custom fields.
List Email TemplatesRetrieve a paginated list of all email templates in the Kit account.
List FormsLists all forms in your Kit account with optional filtering and cursor-based pagination.
List SegmentsTool to retrieve a paginated list of segments.
List SequencesTool to retrieve a paginated list of all sequences.
List SubscribersTool to retrieve a list of subscribers.
List Subscribers For FormRetrieves subscribers for a specific form by ID with optional filtering and cursor-based pagination.
List TagsRetrieve a paginated list of all tags in the Kit account.
List Tag SubscribersTool to retrieve subscribers for a specific tag.
List WebhooksRetrieve a paginated list of all webhooks configured in the Kit account.
Remove Tag From SubscriberTool to remove a tag from a subscriber using their subscriber ID.
Tag SubscriberTool to associate a subscriber with a specific tag by ID.
Tag Subscriber by EmailAssigns a tag to an existing subscriber using their email address.
Untag Subscriber by EmailTool to remove a tag from a subscriber using their email address.
Update Account ColorsTool to update the list of colors for the account.
Update Custom FieldTool to update a custom field's label.
Update SubscriberTool to update an existing subscriber's information.
Update TagTool to update a tag's name by ID.
Python
TypeScript

Install Composio

python
pip install composio claude-agent-sdk
Install the Composio SDK and Claude Agent SDK

Create Tool Router Session

python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
Initialize the Composio client and create a Tool Router session

Connect to AI Agent

python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to Kit tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Add a subscriber to form with id 12345 and email john@doe.com')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
Use the MCP server with your AI agent

Why Use Composio?

AI Native Kit Integration

  • Supports both Kit MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Kit data

Managed Auth

  • Built-in OAuth handling with automatic token refresh and rotation
  • Central place to manage, scope, and revoke Kit access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Kit
  • Scoped, least privilege access to Kit resources
  • Full audit trail of agent actions to support review and compliance

Use Kit with any AI Agent Framework

Choose a Framework you want to connect Kit with

Frequently Asked Questions

Do I need my own developer credentials to use Kit with Composio?

No, you can get started immediately using Composio's built-in Kit app. For production, we recommend configuring your own OAuth credentials.

Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

What if the API changes?

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Used by agents from

Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.

Get started for freeGet a demo↗