Sender MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Sender MCP or direct API to create campaigns, automate workflows, segment audiences, and track campaign results through natural language.

Sender logoSender
Api Key

Sender is an email marketing platform for creating campaigns and automations. It helps you manage, automate, and track email marketing results easily.

9 Tools

Try Sender now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Sender
Try asking
TOOLS

Supported Tools

Every Sender action and event your agent gets out of the box.

Create Field

Tool to create a new custom subscriber field in Sender.

Create Or Update Subscriber

Tool to create a new subscriber or update an existing one in Sender.

Get All Fields

Tool to retrieve a list of all custom subscriber fields configured in the Sender.

Get All Workflows

Tool to retrieve a list of all automation workflows in the Sender account.

Get Campaign By ID

Tool to retrieve a specific campaign by its unique ID from Sender.

Get Group By ID

Tool to retrieve a specific subscriber group by its unique ID from Sender.

Get Subscriber By Email

Tool to retrieve a specific subscriber by their email address from Sender.

Get Subscriber By ID

Tool to retrieve a specific subscriber by their unique ID from Sender.

Update Subscriber Fields

Tool to update custom fields and information for an existing subscriber in Sender.

SETUP GUIDE

Connect Sender MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK for Python or TypeScript
2

Initialize Client and Create Tool Router Session

typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
Import and initialize the Composio client, then create a Tool Router session for Sender
3

Connect to AI Agent

typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'Create and schedule a newsletter for all contacts about our new product launch next week.'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
Use the MCP server with your AI agent (Anthropic Claude or Mastra)
SETUP GUIDE

Connect Sender API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
Import and initialize Composio client, then create a Tool Router session
3

Execute Sender Tools via Tool Router with Your Agent

typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Create a new email campaign for my subscribers announcing our summer sale.'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
Get tools from Tool Router session and execute Sender actions with your Agent

Why Use Composio?

AI Native Sender Integration

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

Managed Auth

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

Frequently asked questions

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

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

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

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

Start with Sender.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Sender tool your agent needs.Free to start.

Start building