Mailsoftly MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Mailsoftly MCP or direct API to send campaigns, manage subscriber lists, automate sequences, and track campaign performance through natural language.
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Try Mailsoftly now

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 Contact to Contact ListTool to add an existing contact to a specific contact list.
Add Custom Field to ContactTool to add a custom field value to an existing contact.
Assign Tags to ContactTool to assign multiple tags to an existing contact at once.
Authenticate FirmTool to validate the API key and retrieve firm details.
Create ContactTool to create a new contact for the authenticated firm with email, first name, and last name.
Create Contact ListTool to create a new contact list for the authenticated firm.
Create Email DraftsTool to create one or more email drafts in Mailsoftly.
Create or Update ContactTool to create a new contact or update an existing contact in Mailsoftly.
Get ContactTool to retrieve a specific contact by ID from Mailsoftly.
Get Contact FieldsTool to fetch all contact fields available for a firm, excluding hidden columns.
Get Contact ListTool to retrieve details of a specific contact list by ID.
Get Contact List ContactsTool to retrieve all contacts within a specific contact list.
Get Contact ListsTool to retrieve all contact lists for the authenticated firm.
Get ContactsTool to retrieve all contacts associated with a firm.
Get Custom FieldsTool to retrieve all custom fields defined for the authenticated firm.
Get Email StatusTool to fetch the status of a specific email draft by its ID.
Get TagsTool to retrieve all tags associated with the authenticated firm.
Search ContactsTool to search for contacts matching specified criteria in Mailsoftly.
Send EmailTool to send an existing email draft that is marked as ready.
Update ContactTool to update an existing contact's information in Mailsoftly.
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 Mailsoftly tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Verify my Mailsoftly API key and show account details')
        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 Mailsoftly Integration

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

Managed Auth

  • Built-in OAuth handling with automatic token refresh and rotation
  • Central place to manage, scope, and revoke Mailsoftly 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 Mailsoftly
  • Scoped, least privilege access to Mailsoftly resources
  • Full audit trail of agent actions to support review and compliance

Use Mailsoftly with any AI Agent Framework

Choose a Framework you want to connect Mailsoftly with

Frequently Asked Questions

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

Yes, Mailsoftly requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

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.

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