# How to integrate Dynosend MCP with Atomic Agent

```json
{
  "title": "How to integrate Dynosend MCP with Atomic Agent",
  "toolkit": "Dynosend",
  "toolkit_slug": "dynosend",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/dynosend/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/dynosend/framework/atomic-agent.md",
  "updated_at": "2026-08-18T06:25:04.280Z"
}
```

## Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Dynosend.
This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Dynosend account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Dynosend with

- [ChatGPT](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)

## TL;DR

### How Atomic Agent connects to Dynosend
Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.
Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

## Connect Dynosend to Atomic Agent

### Connect Dynosend to Atomic Agent
- Sign up or sign in to the [Composio dashboard](https://dashboard.composio.dev/?cta_placement=atomic-agent-api-key). Copy your API key.
- In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
- Ask Atomic Agent to do something in Dynosend. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Dynosend account, then return to Atomic Agent to continue.
### Headless setup
Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

```bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY
```

## 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.

## Troubleshooting

### Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

### Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

### Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See [Composio pricing](/pricing) for the current limits that apply to your connection.

## Complete Code

None listed.

## Conclusion

### Use Dynosend from Atomic Agent
With your account connected, ask Atomic Agent to work with Dynosend in natural language. You can connect more apps through the same Composio integration as you need them.
Visit the [Atomic Agent website](https://atomicagent.io/?cta_placement=atomic-agent-site) or inspect the [Atomic Agent source code](https://github.com/AtomicBot-ai/atomic-agent?cta_placement=atomic-agent-repo).

## How to build Dynosend MCP Agent with another framework

- [ChatGPT](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)

## Related Toolkits

- [Reddit](https://composio.dev/toolkits/reddit) - Reddit is a social news platform with thriving user-driven communities (subreddits). It's the go-to place for discussion, content sharing, and viral marketing.
- [Facebook](https://composio.dev/toolkits/facebook) - Facebook is a social media and advertising platform for businesses and creators. It helps you connect, share, and manage content across your public Facebook Pages.
- [Linkedin](https://composio.dev/toolkits/linkedin) - LinkedIn is a professional networking platform for connecting, sharing content, and engaging with business opportunities. It's the go-to place for building your professional brand and unlocking new career connections.
- [Active campaign](https://composio.dev/toolkits/active_campaign) - ActiveCampaign is a marketing automation and CRM platform for managing email campaigns, sales pipelines, and customer segmentation. It helps businesses engage customers and drive growth through smart automation and targeted outreach.
- [ActiveTrail](https://composio.dev/toolkits/active_trail) - ActiveTrail is a user-friendly email marketing and automation platform. It helps you reach subscribers and automate campaigns with ease.
- [Adobe Marketing Agent MCP](https://composio.dev/toolkits/adobe_marketing_agent_mcp) - Adobe Marketing Agent MCP is Adobe's hosted MCP service that exposes marketing context, preferences, and agent capabilities. Use it to provide agents with campaign, audience, and analytics context via a managed integration.
- [Ahrefs](https://composio.dev/toolkits/ahrefs) - Ahrefs is an SEO and marketing platform for site audits, keyword research, and competitor insights. It helps you improve search rankings and drive organic traffic.
- [AimTell](https://composio.dev/toolkits/aimtell) - AimTell is a web push notification platform for managing websites, subscribers, campaigns, segments, and delivery analytics. Use it to send targeted browser notifications and measure engagement across your web push campaigns.
- [Amcards](https://composio.dev/toolkits/amcards) - AMCards lets you create and mail personalized greeting cards online. Build stronger customer relationships with easy, automated card campaigns.
- [Beamer](https://composio.dev/toolkits/beamer) - Beamer is a news and changelog platform for in-app announcements and feature updates. It helps companies boost user engagement by sharing news where users are most active.
- [Beehiiv](https://composio.dev/toolkits/beehiiv) - Beehiiv is a newsletter platform for creating and managing publications and subscribers. It helps grow audience engagement and monetize your mailing list.
- [Benchmark email](https://composio.dev/toolkits/benchmark_email) - Benchmark Email is a platform for creating, sending, and tracking email campaigns. It's built to help you engage audiences and analyze results—all in one place.
- [Bigmailer](https://composio.dev/toolkits/bigmailer) - BigMailer is an email marketing platform for managing multiple brands with white-labeling and automation. It helps teams streamline campaigns and simplify integration with Amazon SES.
- [Bitly](https://composio.dev/toolkits/bitly) - Bitly is a link management platform for shortening, customizing, sharing, and tracking links and QR codes. It helps teams create branded links and measure engagement across campaigns.
- [BlueFox Email](https://composio.dev/toolkits/bluefox_email) - BlueFox Email is an email API for managing contacts, subscriber lists, and sending transactional and triggered messages. Use it to reliably send transactional and triggered emails and manage subscribers at scale.
- [Brandfetch](https://composio.dev/toolkits/brandfetch) - Brandfetch is an API that delivers company logos, colors, and visual branding assets. It helps marketers and developers keep brand visuals consistent everywhere.
- [Braze](https://composio.dev/toolkits/braze) - Braze is a customer engagement platform for managing user data, messaging, campaigns, and analytics. Use it to deliver targeted, multi-channel messaging and analyze campaign performance.
- [Brevo](https://composio.dev/toolkits/brevo) - Brevo is an all-in-one email and SMS marketing platform for transactional messaging, automation, and CRM. It helps businesses engage customers and streamline communications through powerful campaign tools.
- [Buffer](https://composio.dev/toolkits/buffer) - Buffer is a social media management platform for planning, creating, scheduling, and publishing posts across connected channels. It helps teams keep content organized and publish consistently without jumping between social apps.
- [BulkPublish](https://composio.dev/toolkits/bulkpublish) - BulkPublish is a social media publishing platform for managing scheduled content across multiple channels. It helps teams plan campaigns, publish consistently, and track performance in one place.

## 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 Atomic Agent?

Yes, you can. Atomic Agent 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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