# Unisender

```json
{
  "name": "Unisender",
  "slug": "unisender",
  "url": "https://composio.dev/toolkits/unisender",
  "markdown_url": "https://composio.dev/toolkits/unisender.md",
  "logo_url": "https://logos.composio.dev/api/unisender",
  "categories": [
    "marketing & social media"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-03-29T06:54:16.935Z"
}
```

![Unisender logo](https://logos.composio.dev/api/unisender)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Unisender MCP or direct API to send campaigns, manage contact lists, create segments, and automate email/SMS marketing through natural language.

## Summary

UniSender is a service for email and SMS marketing campaigns.
It helps you reach your audience easily and automate campaign management.

## Categories

- marketing & social media

## Toolkit Details

- Tools: 33

## Images

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

## Authentication

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

## Suggested Prompts

- Send an SMS campaign to new signups
- Create a new email list segment
- Check status of yesterday's email campaign

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `UNISENDER_CHECK_EMAIL` | Check Email Status | Tool to check the delivery status of emails sent via sendEmail method. Use when you need to verify email delivery status by email IDs. Statuses are stored for approximately one month. Rate limited to 300 requests per 60 seconds. |
| `UNISENDER_CREATE_EMAIL_TEMPLATE` | Create Email Template | Tool to create a new email template for mass campaigns in UniSender. Use when you need to create a reusable email template with customizable title, subject, body content, and sender information. |
| `UNISENDER_CREATE_FIELD` | Create Field | Tool to create a new custom field for contact data in UniSender. Use when you need to add a custom field that can store additional contact information and be used in email message substitutions. |
| `UNISENDER_CREATE_LIST` | Create List | Tool to create a new contact list for organizing thematic email campaigns in UniSender. Use when you need to create a new mailing list with a unique title. The list title must be unique within the account. |
| `UNISENDER_CREATE_SUBSCRIBER_NOTE` | Create Subscriber Note | Tool to create a note for a subscriber contact in UniSender. Use when you need to add a new note to a subscriber's profile. Notes created via API have an 'origin' field set to 'api'. |
| `UNISENDER_DELETE_FIELD` | Delete Field | Tool to remove a custom field from the Unisender system. Use when you need to permanently delete a custom field and all its associated contact data. |
| `UNISENDER_DELETE_LIST` | Delete List | Tool to permanently delete a contact list from your UniSender account. Use when you need to remove a mailing list by its ID. |
| `UNISENDER_DELETE_SUBSCRIBER_NOTE` | Delete Subscriber Note | Tool to delete a subscriber note from UniSender by its ID. Use when you need to remove a note associated with a subscriber/contact from the system. |
| `UNISENDER_DELETE_TAG` | Delete Tag | Tool to delete a tag by its ID and remove it from all associated contacts. Use when you need to remove a tag from your UniSender account. |
| `UNISENDER_DELETE_TEMPLATE` | Delete Template | Tool to remove a template from the UniSender account. Use when you need to permanently delete a template by its ID. |
| `UNISENDER_EXCLUDE_CONTACT_FROM_LISTS` | Exclude Contact from Lists | Tool to remove contacts from specified lists or all lists in UniSender. Use when you need to exclude a contact (email or phone) from mailing lists. Unlike unsubscribe, exclude actually removes the contact from lists, allowing them to be re-added later using the subscribe method. Recommended when subscription management is performed by sender's initiative. |
| `UNISENDER_EXPORT_CONTACTS` | Export Contacts | Tool to export contact data from UniSender lists for synchronization. Use when you need to export email addresses, phone numbers, and custom fields from lists. This method works asynchronously - the response contains a task_uuid for tracking export status. |
| `UNISENDER_GET_CAMPAIGNS` | Get Campaigns | Tool to retrieve list of campaigns from Unisender within a specified date range. Use when you need to fetch email campaign information with optional filtering by date and pagination support. Returns up to 10,000 campaigns per request. |
| `UNISENDER_GET_CAMPAIGN_STATUS` | Get Campaign Status | Tool to check the current status of a campaign in UniSender. Use when you need to verify campaign progress or completion status. Returns detailed status information including creation time and start time. |
| `UNISENDER_GET_CONTACT` | Get Contact | Tool to get information about a single contact from UniSender. Use when you need to retrieve detailed contact data including email/phone status, custom fields, list memberships, and engagement statistics. Either email or contact_id must be provided. |
| `UNISENDER_GET_CONTACT_FIELD_VALUES` | Get Contact Field Values | Tool to retrieve custom field values for a specific contact identified by email address. Use when you need to get additional field data associated with a contact. You can optionally specify which fields to retrieve by providing field IDs. |
| `UNISENDER_GET_FIELDS` | Get Fields | Tool to retrieve all custom user-defined fields for contact personalization and data management. Use when creating integrations to map fields between systems or to retrieve available custom fields for contacts. |
| `UNISENDER_GET_LISTS` | Get Lists | Tool to retrieve all existing mailing lists associated with the account. Use when you need to get list IDs and titles before sending emails or SMS to a list, or to display available contact lists. |
| `UNISENDER_GET_MESSAGES` | Get Messages | Tool to retrieve list of all messages with body and attachments. Use when you need complete message information including content and attachments, unlike listMessages which returns only metadata. |
| `UNISENDER_GET_SENDER_DOMAIN_LIST` | Get Sender Domain List | Tool to retrieve information about sender domains and their DKIM status. Use when you need to check which domains are registered for sending emails and their verification status. |
| `UNISENDER_GET_TAGS` | Get Tags | Tool to retrieve all custom tags/labels for contact segmentation. Use when you need to list all available tags in the Unisender account. |
| `UNISENDER_GET_TEMPLATE` | Get Template | Tool to retrieve detailed information about a specific email template by its ID. Use when you need to fetch template details including metadata, content, creation details, and formatting information. |
| `UNISENDER_GET_TEMPLATES` | Get Templates | Tool to retrieve list of all templates with full content including body. Use when you need complete template information including raw_body and body fields, unlike listTemplates which returns templates without body content. |
| `UNISENDER_IMPORT_CONTACTS_BULK` | Import Contacts (Bulk) | Tool to bulk import contacts to UniSender with maximum 500 contacts per call. Use when you need to import multiple contacts at once with their fields, list subscriptions, and tags. Supports creating new contacts, updating existing ones, and managing list subscriptions. UniSender automatically validates emails and filters spam-traps. |
| `UNISENDER_CHECK_IF_CONTACT_IS_IN_LISTS` | Check if Contact is in Lists | Tool to check if a contact exists in specified mailing lists based on and/or conditions. Use when you need to verify whether a contact is a member of specific lists. The condition parameter allows checking if the contact is in all lists (and) or at least one list (or). |
| `UNISENDER_LIST_MESSAGES` | List Messages | Tool to list all messages without body and attachments. Use when you need to browse available messages created via API or web interface. |
| `UNISENDER_LIST_TEMPLATES` | List Templates | Tool to list email templates without body content. Use when you need to browse available templates created via API or web interface. |
| `UNISENDER_SUBSCRIBE_CONTACT_TO_LISTS` | Subscribe Contact to Lists | Tool to add contacts to one or multiple mailing lists with optional tags and field values. Use when you need to subscribe a contact (email and/or phone) to Unisender lists. This method adds contacts individually and can override existing contact data based on the overwrite parameter. Contacts previously excluded can be re-added using this action. |
| `UNISENDER_UNSUBSCRIBE_CONTACT` | Unsubscribe Contact | Tool to unsubscribe contacts from mailing lists in UniSender. Use when a contact initiates opt-out from campaigns. This marks contacts as 'unsubscribed' rather than excluding them - the active status can only be restored by the contact clicking an activation link. |
| `UNISENDER_UPDATE_EMAIL_TEMPLATE` | Update Email Template | Tool to update an existing email template for mass campaigns. Use when you need to modify template properties like title, subject, body content, sender information, or language settings. Only the fields you specify will be updated. |
| `UNISENDER_UPDATE_FIELD` | Update Field | Tool to modify parameters of an existing custom field in UniSender. Use when you need to change field properties like name, display name, type, visibility, or display position. |
| `UNISENDER_UPDATE_LIST` | Update List | Tool to update the parameters of an existing contact list in UniSender. Use when you need to change the title, pre-subscription URL, or post-subscription URL of an existing mailing list. |
| `UNISENDER_UPDATE_SUBSCRIBER_NOTE` | Update Subscriber Note | Tool to update the content of an existing subscriber note in UniSender. Use when you need to edit or modify the content of a previously created note attached to a subscriber. |

## 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 Unisender Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute Unisender actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Send a new email campaign to my subscribers about the 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: 'Send a new email campaign to my subscribers about the 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 Unisender
```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 Unisender tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Send a new email campaign to my subscribers about the summer sale.')
        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: 'Send a new email campaign to my subscribers about the summer sale.'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
```

## Why Use Composio?

### 1. AI Native Unisender Integration

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

### 2. Managed Auth

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

## Use Unisender with any AI Agent Framework

Choose a framework you want to connect Unisender with:

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

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## Frequently Asked Questions

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

Yes, Unisender 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](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)