# Dynosend

```json
{
  "name": "Dynosend",
  "slug": "dynosend",
  "url": "https://composio.dev/toolkits/dynosend",
  "markdown_url": "https://composio.dev/toolkits/dynosend.md",
  "logo_url": "https://logos.composio.dev/api/dynosend",
  "categories": [
    "marketing & social media"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-08-18T06:25:04.280Z"
}
```

![Dynosend logo](https://logos.composio.dev/api/dynosend)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Dynosend MCP or direct API to manage contacts, update audiences, operate email campaigns, send transactional messages, and track customer events through natural language.

## Summary

Dynosend is an email marketing platform for audiences, contacts, campaigns, transactional messages, and customer events.
Use it to manage lifecycle email, track engagement, and keep customer communication organized.

## Categories

- marketing & social media

## Toolkit Details

- Tools: 18

## Images

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

## Authentication

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

## Suggested Prompts

- Add contact to newsletter audience
- Summarize latest campaign engagement metrics
- Track signup event for customer

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `DYNOSEND_ADD_EMAIL_TO_BLACKLIST` | Add Email To Blacklist | Permanently add an email address to the Dynosend blacklist. This cannot be undone through the Dynosend API because Dynosend exposes no removal operation. |
| `DYNOSEND_ADD_TAGS_TO_CONTACT` | Add Tags To Contact | Append one or more tags to a contact without replacing its existing tags. |
| `DYNOSEND_CHECK_BLACKLIST` | Check Blacklist | Check whether an email address is on the connected Dynosend account's blacklist and return its timestamp and reason when available. |
| `DYNOSEND_CREATE_CONTACT` | Create Contact | Create a contact in an audience, optionally assigning tags and audience-defined custom fields. Can bypass double opt-in when explicitly requested. |
| `DYNOSEND_DELETE_CONTACT` | Delete Contact | Permanently delete one contact from an audience for GDPR/CCPA erasure. This destructive operation cannot be undone. |
| `DYNOSEND_FIND_DUPLICATE_CONTACTS` | Find Duplicate Contacts | Find contacts that use the same email address across all audiences in the connected Dynosend account. |
| `DYNOSEND_GET_AUDIENCE` | Get Audience | Get one audience's configuration, custom-field definitions, contact information, and subscription statistics by audience UID. |
| `DYNOSEND_GET_CAMPAIGN` | Get Campaign | Get one campaign's configuration and delivery, open, click, spam, bounce, and unsubscribe insights. |
| `DYNOSEND_GET_CONTACT` | Get Contact | Get one contact in an audience by contact UID or email address. |
| `DYNOSEND_LIST_AUDIENCES` | List Audiences | List audiences available to the connected Dynosend account, including the UID needed by audience and contact tools. |
| `DYNOSEND_LIST_CAMPAIGNS` | List Campaigns | List campaigns in the connected Dynosend account, including status and the campaign UID used by campaign tools. |
| `DYNOSEND_LIST_CONTACTS` | List Contacts | Return one page of contacts in a Dynosend audience, including contact UIDs, subscription status, tags, and audience-defined custom-field values. |
| `DYNOSEND_RECORD_CONTACT_EVENT` | Record Contact Event | Record an application event for a contact in an audience. Dynosend stores the event persistently for automations and segmentation, and its API does not provide an operation to delete recorded events. |
| `DYNOSEND_SEND_TRANSACTIONAL_MESSAGE` | Send Transactional Message | Send a configured Dynosend transactional message. This immediately sends email and may create the recipient as a new Dynosend contact if the address is unknown. |
| `DYNOSEND_SET_CAMPAIGN_DELIVERY_STATE` | Set Campaign Delivery State | Pause a sending campaign or resume a paused campaign by setting its delivery state to paused or sending. Resuming can send queued emails to campaign recipients; this does not start a ready campaign. |
| `DYNOSEND_SET_CONTACT_SUBSCRIPTION_STATUS` | Set Contact Subscription Status | Set a contact's subscription status to subscribed or unsubscribed in an audience. |
| `DYNOSEND_START_CAMPAIGN` | Start Campaign | Start a ready broadcast campaign. This immediately sends email to all campaign recipients and cannot be undone. |
| `DYNOSEND_UPDATE_CONTACT` | Update Contact | Update a contact's email, replace its complete tag set, or set audience-defined custom fields. |

## 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 Dynosend Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute Dynosend actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Add jane@example.com as a new Dynosend contact in my newsletter audience'
  }]
)
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: 'Add jane@example.com as a new Dynosend contact in my newsletter audience'
  }],
});
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 Dynosend
```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 Dynosend tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Show me the latest Dynosend campaign engagement and summarize key trends')
        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: 'Show me the latest Dynosend campaign engagement and summarize key trends'
  }],
  maxSteps: 5,
});

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

## Why Use Composio?

### 1. AI Native Dynosend Integration

- Supports both Dynosend MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable contact, campaign, and event operations
- Rich coverage for reading, writing, and querying your Dynosend audiences and marketing data

### 2. Managed Auth

- Secure API key handling without hard-coding Dynosend credentials in your agent code
- Central place to manage, scope, and revoke Dynosend access
- Per user and per environment credentials for safer email marketing automation

### 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 which Dynosend action ran, when, and on whose behalf
- Clear tool schemas help agents handle contacts, campaigns, messages, and events with fewer mistakes

### 4. Enterprise Grade Security

- Fine-grained RBAC so you control which agents and users can access Dynosend
- Scoped, least privilege access to Dynosend audiences, contacts, and campaign operations
- Full audit trail of agent actions to support review and compliance

## Use Dynosend with any AI Agent Framework

Choose a framework you want to connect Dynosend with:

- [ChatGPT Work](https://composio.dev/toolkits/dynosend/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/dynosend/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/dynosend/framework/hermes-agent)

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## Frequently Asked Questions

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

Yes, Dynosend 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)