# How to connect Dynosend to Claude Cowork

```json
{
  "title": "How to connect Dynosend to Claude Cowork",
  "toolkit": "Dynosend",
  "toolkit_slug": "dynosend",
  "framework": "Claude Cowork",
  "framework_slug": "claude-cowork",
  "url": "https://composio.dev/toolkits/dynosend/framework/claude-cowork",
  "markdown_url": "https://composio.dev/toolkits/dynosend/framework/claude-cowork.md",
  "updated_at": "2026-08-18T06:25:04.280Z"
}
```

## Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.
This guide walks you through the easiest and most secure way to connect your Dynosend account to Cowork via Composio Connect, enabling it to add contact to newsletter audience, summarize latest campaign engagement metrics, track signup event for customer, and more such actions on your behalf without compromising your account security.

## Also integrate Dynosend with

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

## Connect Dynosend to Claude Cowork

### Connecting Dynosend to Claude Cowork
1. Open Customize
In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.
2. Add the Composio MCP server
Click Add custom connector and paste in the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.
With Composio Connect, Cowork can securely access apps like Dynosend through MCP without you sharing account credentials directly with the agent.

## What is the Dynosend MCP server, and what's possible with it?

The Dynosend MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Dynosend account. It provides structured and secure access so your agent can perform Dynosend operations on your behalf.

## 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.

## Creating MCP Server - Stand-alone vs Composio SDK

The Dynosend MCP server connects Claude Cowork to your Dynosend account through Composio. Once connected, Cowork can use the available Dynosend tools and triggers to complete tasks on your behalf.

## Complete Code

None listed.

## How to build Dynosend MCP Agent with another framework

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

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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Dynosend MCP?

With a standalone Dynosend MCP server, the agents and LLMs can only access a fixed set of Dynosend tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Dynosend and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Dynosend tools.

### Can I manage the permissions and scopes for Dynosend while using Tool Router?

Yes, absolutely. You can configure which Dynosend scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Dynosend data and credentials are handled as safely as possible.

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