# Sender

```json
{
  "name": "Sender",
  "slug": "sender",
  "url": "https://composio.dev/toolkits/sender",
  "markdown_url": "https://composio.dev/toolkits/sender.md",
  "logo_url": "https://logos.composio.dev/api/sender",
  "categories": [
    "marketing & social media",
    "productivity & project management"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-03-29T06:49:27.339Z"
}
```

![Sender logo](https://logos.composio.dev/api/sender)

## Description

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.

## Summary

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

## Categories

- marketing & social media
- productivity & project management

## Toolkit Details

- Tools: 9

## Images

- Logo: https://logos.composio.dev/api/sender

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for Sender.
  - Setup:
    - Configure Api Key credentials for Sender.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

- Create a new email campaign for holiday sale
- Add a contact to my main subscriber list
- Get open rates for last week's campaigns

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `SENDER_CREATE_FIELD` | Create Field | Tool to create a new custom subscriber field in Sender.net. Use when you need to add custom fields for email personalization, segmentation, or storing additional subscriber information like company name, birthday, job title, or other custom attributes. |
| `SENDER_CREATE_OR_UPDATE_SUBSCRIBER` | Create Or Update Subscriber | Tool to create a new subscriber or update an existing one in Sender.net. Use when you need to add new subscribers to your email list or update existing subscriber information. This performs an upsert operation - creates if the email doesn't exist, updates if it does. |
| `SENDER_GET_ALL_FIELDS` | Get All Fields | Tool to retrieve a list of all custom subscriber fields configured in the Sender.net account. Use when you need to view available fields for email personalization, segmentation, or managing subscriber data. |
| `SENDER_GET_ALL_WORKFLOWS` | Get All Workflows | Tool to retrieve a list of all automation workflows in the Sender account. Use when you need to view or manage automation workflows. |
| `SENDER_GET_CAMPAIGN_BY_ID` | Get Campaign By ID | Tool to retrieve a specific campaign by its unique ID from Sender. Use when you need detailed information about a campaign including delivery metrics and engagement statistics. |
| `SENDER_GET_GROUP_BY_ID` | Get Group By ID | Tool to retrieve a specific subscriber group by its unique ID from Sender. Use when you need detailed information about a single group including subscriber counts. |
| `SENDER_GET_SUBSCRIBER_BY_EMAIL` | Get Subscriber By Email | Tool to retrieve a specific subscriber by their email address from Sender. Use when you need to fetch detailed information about a single subscriber including their status, groups, and custom fields. |
| `SENDER_GET_SUBSCRIBER_BY_ID` | Get Subscriber By ID | Tool to retrieve a specific subscriber by their unique ID from Sender. Use when you need to fetch detailed information about a single subscriber including their status, groups, and custom fields. |
| `SENDER_UPDATE_SUBSCRIBER_FIELDS` | Update Subscriber Fields | Tool to update custom fields and information for an existing subscriber in Sender.net. Use when you need to modify subscriber details such as email, first name, last name, groups, or custom fields for email personalization and segmentation. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK
```python
pip install composio_openai
```

```typescript
npm install @composio/openai
```

#### Path 1, Step 2: Initialize Composio and Create Tool Router Session

Import and initialize Composio client, then create a Tool Router session
```python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
```

```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');
```

#### Path 1, Step 3: Execute Sender Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute Sender actions with your Agent
```python
tools = session.tools
response = 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.'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```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);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK for Python or TypeScript
```python
pip install composio claude-agent-sdk
```

```typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
```

#### Path 2, Step 2: Initialize Client and Create Tool Router Session

Import and initialize the Composio client, then create a Tool Router session for Sender
```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
```

```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}`);
```

#### Path 2, Step 3: Connect to AI Agent

Use the MCP server with your AI agent (Anthropic Claude or Mastra)
```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 Sender tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Create and schedule a newsletter for all contacts about our new product launch next week.')
        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())
```

```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}`);
```

## Why Use Composio?

### 1. 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

### 2. 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

### 3. 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

### 4. 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

## Use Sender with any AI Agent Framework

Choose a framework you want to connect Sender with:

- [OpenAI Agents SDK](https://composio.dev/toolkits/sender/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/sender/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/sender/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/sender/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/sender/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/sender/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/sender/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/sender/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/sender/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/sender/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/sender/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/sender/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/sender/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/sender/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/sender/framework/autogen)

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## Frequently Asked Questions

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

Yes, Sender requires you to configure your own API key. 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](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

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

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)