# How to integrate Postalytics MCP with Atomic Agent

```json
{
  "title": "How to integrate Postalytics MCP with Atomic Agent",
  "toolkit": "Postalytics",
  "toolkit_slug": "postalytics",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/postalytics/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/postalytics/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:04:56.201Z"
}
```

## 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 Postalytics.
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 Postalytics account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Postalytics with

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

## TL;DR

### How Atomic Agent connects to Postalytics
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 Postalytics to Atomic Agent

### Connect Postalytics 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 Postalytics. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Postalytics 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 Postalytics MCP server, and what's possible with it?

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

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `POSTALYTICS_ADD_ACCOUNT` | Add Account | Tool to create a new sub-account in the Postalytics system. Use when you need to create a new account with a unique ID associated with the requester's user ID as parent. The response includes the API key and user ID for the new account, which should be stored for future API calls. |
| `POSTALYTICS_ADD_CONTACT` | Add Contact | Tool to add a contact to a specified contact list with their information. Use when you need to create a new contact or update an existing one on a contact list. |
| `POSTALYTICS_CREATE_NEW_CAMPAIGN` | Create New Campaign | Tool to create a new direct mail campaign in Postalytics. Use when you need to start a new campaign with specified sender details and template. Important: A template must be created and proofed before creating the campaign. |
| `POSTALYTICS_CREATE_SUPPRESSION_LIST` | Create Suppression List | Tool to create a new suppression list that can be used in campaigns to suppress contacts from being sent mail. Use when you need to create an empty suppression list. Note that contacts must be added separately using the SuppressionListContact API after the list is created. |
| `POSTALYTICS_CREATE_SUPPRESSION_LIST_CONTACT` | Create Suppression List Contact | Tool to create a new suppression contact on a specified suppression list. Use when you need to add a contact to a suppression list to prevent them from receiving mailings. |
| `POSTALYTICS_CREATE_TEMPLATE` | Create Template | Tool to create a new template with full HTML for postcard or letter. Use when you need to create a template by providing complete HTML markup or image URLs for front/back. The template can be used for various mail types including postcards, letters, and bifolds. |
| `POSTALYTICS_CREATE_WEBHOOK` | Create Webhook | Tool to create a new webhook to receive campaign event notifications from Postalytics. Use when you need to set up a webhook endpoint that will be notified about campaign events like sent, delivered, opened, or clicked. |
| `POSTALYTICS_DELETE_ACCOUNT` | Delete Account | Tool to delete a Postalytics account and all associated campaigns, templates, and lists. Use when you need to permanently remove a sub account or sub user account. Cannot delete parent accounts. |
| `POSTALYTICS_DELETE_CAMPAIGN` | Delete Campaign | Tool to delete a campaign from the system. Use when you need to remove a campaign that is no longer needed. |
| `POSTALYTICS_DELETE_SUPPRESSION_LIST` | Delete Suppression List | Tool to delete a specified suppression list. Use when you need to remove a suppression list that is no longer needed. |
| `POSTALYTICS_DELETE_SUPPRESSION_LIST_CONTACT` | Delete Suppression List Contact | Tool to delete a specific contact from a suppression list. Use when you need to remove a contact from a suppression list in Postalytics. |
| `POSTALYTICS_GET_ALL_CONTACT_LISTS` | Get All Contact Lists | Tool to retrieve all contact lists for an account. Use when you need to get a complete list of contact lists including their IDs, names, item counts, and creation dates. |
| `POSTALYTICS_GET_ALL_CONTACTS_ON_A_LIST` | Get All Contacts on a List | Tool to retrieve all contacts from a specified contact list with pagination support. Use when you need to get contacts from a list, with optional pagination using start offset and limit parameters. |
| `POSTALYTICS_GET_ALL_DRIP_CAMPAIGNS` | Get All Drip Campaigns | Tool to retrieve all triggered drip campaign names and endpoint IDs in the account. Use when you need to list all available drip campaigns for the authenticated user. |
| `POSTALYTICS_GET_ALL_FLOWS` | Get All Flows | Tool to retrieve all flows for the requester's account. Use when you need to list or browse available flows. |
| `POSTALYTICS_GET_ALL_WEBHOOKS` | Get All Webhooks | Tool to retrieve all webhooks configured for the authenticated account. Use when you need to view webhook configurations for campaigns. |
| `POSTALYTICS_GET_INTEGRATIONS` | Get Integrations | Tool to retrieve all Connect integrations configured for the authenticated user's account. Use when you need to view CRM or data source integrations. |
| `POSTALYTICS_GET_MY_ACCOUNT` | Get My Account | Tool to retrieve basic account information for the authenticated user. Use when you need to get account details such as contact information, address, or API key. |
| `POSTALYTICS_GET_SUPPRESSION_LIST` | Get Suppression List | Tool to get the details of a suppression list based on the id supplied. Use when you need to retrieve information about a specific suppression list. |
| `POSTALYTICS_GET_SUPPRESSION_LIST_CONTACT` | Get Suppression List Contact | Tool to retrieve a specific contact from a suppression list. Use when you need to get details about a contact on a specific suppression list by their list ID and contact ID. |
| `POSTALYTICS_GET_SUPPRESSION_LIST_CONTACTS` | Get Suppression List Contacts | Tool to get all contacts on a specified suppression list. Use when you need to retrieve contacts that are suppressed for a particular list. |
| `POSTALYTICS_GET_SUPPRESSION_LISTS` | Get Suppression Lists | Tool to retrieve all suppression lists for the authenticated user. Use when you need to view or manage suppression lists. Returns all lists or a specific list when ID is provided. |
| `POSTALYTICS_UPDATE_ACCOUNT` | Update Account | Tool to update an existing account in the Postalytics system. Use when you need to modify account information such as contact details, address, or credentials for an existing account. |
| `POSTALYTICS_UPDATE_SUPPRESSION_LIST_CONTACT` | Update Suppression List Contact | Tool to update a suppression contact on the specified suppression list. Use when you need to modify contact information for a specific contact on a suppression list. |

## 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 Postalytics from Atomic Agent
With your account connected, ask Atomic Agent to work with Postalytics 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 Postalytics MCP Agent with another framework

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

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## Frequently Asked Questions

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

With a standalone Postalytics MCP server, the agents and LLMs can only access a fixed set of Postalytics tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Postalytics 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 Postalytics tools.

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

Yes, absolutely. You can configure which Postalytics 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 Postalytics data and credentials are handled as safely as possible.

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