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How to connect Postalytics to Claude

Connect Claude Web, Desktop and Cowork to Postalytics MCP. Create a new direct mail campaign, sync contacts from hubspot to postalytics, and more using natural language, with authentication handled for you.

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Postalytics is cloud-based direct mail automation software for marketing teams. It streamlines campaign creation, tracking, and CRM integration with digital-like automation.

24 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Postalytics account to Claude via Composio Connect, enabling it to create a new direct mail campaign, sync contacts from HubSpot to Postalytics, track delivery status for recent campaigns, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Postalytics with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Postalytics to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Postalytics account

Back in Claude, ask it to connect to Postalytics or give it any Postalytics-related task.

For example, ask Claude to:

  • "Create a new direct mail campaign"
  • "Sync contacts from HubSpot to Postalytics"
  • "Track delivery status for recent campaigns"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Postalytics account is ready to use.

What is the Postalytics Claude Connector, 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.

Troubleshooting

1. Why does Claude not use the Composio connector for Postalytics?

The connector can show as connected, but Claude must use it in each Postalytics conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Postalytics again.

2. Why does Claude show an MCP server error before Postalytics connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Postalytics.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Postalytics.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Postalytics authorization link not work?

The Composio connector is one server. Your Postalytics account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Postalytics connection.
  • Composio creates a fresh Postalytics authorization link.
  • Open that link in your browser and finish the Postalytics sign-in.

4. Why do Postalytics actions fail after they worked before?

The Postalytics connection can expire or lose permission.

  • Ask Claude to inspect the Postalytics connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Postalytics account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Postalytics.
  • If the action still fails with a permission error, check that the connected account has that permission in Postalytics itself.

5. How do I switch to a different Postalytics account?

Claude can manage the Postalytics connection for you.

  • Ask Claude to disconnect or delete the current Postalytics account.
  • Ask Claude to connect Postalytics again.
  • Open the new Composio authorization link for Postalytics.
  • Sign in with the other Postalytics account in the browser.
  • After the account connects, ask Claude to retry the Postalytics task.

6. Why is my Postalytics connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Postalytics connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Postalytics tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Postalytics.
TOOLS

Supported Tools

Every Postalytics action and event your agent gets out of the box.

Add Account

Tool to create a new sub-account in the Postalytics system.

Add Contact

Tool to add a contact to a specified contact list with their information.

Create New Campaign

Tool to create a new direct mail campaign in Postalytics.

Create Suppression List

Tool to create a new suppression list that can be used in campaigns to suppress contacts from being sent mail.

Create Suppression List Contact

Tool to create a new suppression contact on a specified suppression list.

Create Template

Tool to create a new template with full HTML for postcard or letter.

Create Webhook

Tool to create a new webhook to receive campaign event notifications from Postalytics.

Delete Account

Tool to delete a Postalytics account and all associated campaigns, templates, and lists.

Delete Campaign

Tool to delete a campaign from the system.

Delete Suppression List

Tool to delete a specified suppression list.

Delete Suppression List Contact

Tool to delete a specific contact from a suppression list.

Get All Contact Lists

Tool to retrieve all contact lists for an account.

Get All Contacts on a List

Tool to retrieve all contacts from a specified contact list with pagination support.

Get All Drip Campaigns

Tool to retrieve all triggered drip campaign names and endpoint IDs in the account.

Get All Flows

Tool to retrieve all flows for the requester's account.

Get All Webhooks

Tool to retrieve all webhooks configured for the authenticated account.

Get Integrations

Tool to retrieve all Connect integrations configured for the authenticated user's account.

Get My Account

Tool to retrieve basic account information for the authenticated user.

Get Suppression List

Tool to get the details of a suppression list based on the id supplied.

Get Suppression List Contact

Tool to retrieve a specific contact from a suppression list.

Get Suppression List Contacts

Tool to get all contacts on a specified suppression list.

Get Suppression Lists

Tool to retrieve all suppression lists for the authenticated user.

Update Account

Tool to update an existing account in the Postalytics system.

Update Suppression List Contact

Tool to update a suppression contact on the specified suppression list.

FRAMEWORKS

How to build Postalytics MCP Agent with another framework

Claude Code logo

Claude Code

Use Postalytics MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Postalytics MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Postalytics MCP with Claude Agent SDK

Codex logo

Codex

Use Postalytics MCP with Codex

OpenClaw logo

OpenClaw

Use Postalytics MCP with OpenClaw

Hermes logo

Hermes

Use Postalytics MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Postalytics MCP with Atomic Agent

Google ADK logo

Google ADK

Use Postalytics MCP with Google ADK

LangChain logo

LangChain

Use Postalytics MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Postalytics MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Postalytics MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Postalytics MCP with LlamaIndex

CrewAI logo

CrewAI

Use Postalytics MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Postalytics MCP with Pydantic AI

AutoGen logo

AutoGen

Use Postalytics MCP with AutoGen

FAQ

Frequently asked questions

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.

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 Postalytics tools.

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.

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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