How to connect Echtpost to Claude Cowork

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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 Echtpost account to Cowork via Composio Connect, enabling it to show me all postcard templates available, list templates for confidential document delivery, get preview links for secure message templates, and more such actions on your behalf without compromising your account security.

Also integrate Echtpost with

Connecting Echtpost 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.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

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

3. 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 Cowork

4. Connect your Echtpost account

Back in Cowork, ask the agent to connect to Echtpost or give it any Echtpost-related task.

For example, ask Cowork to:

  • "Show me all postcard templates available"
  • "List templates for confidential document delivery"
  • "Get preview links for secure message templates"

It will prompt you to authenticate and authorize access.

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

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 Echtpost through MCP without you sharing account credentials directly with the agent.

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

The Echtpost MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Echtpost account. It provides structured and secure access to your Echtpost templates, so your agent can perform actions like listing available postcard templates, retrieving template details, and preparing for secure document creation on your behalf.

  • Comprehensive template retrieval: Instantly fetch all available postcard and document templates in your Echtpost account for quick reference and selection.
  • Detailed template information: Allow your agent to access template names, descriptions, preview links, types, and creation timestamps to help you make informed decisions before sending confidential documents.
  • Template ID lookup for card creation: Let your agent efficiently obtain the necessary template IDs required for creating and dispatching secure postcards or messages.
  • Preview and validation of design assets: Preview templates visually and validate their suitability—ensuring every document meets your standards before sending.

Supported Tools & Triggers

Tools
List templatesThis tool retrieves a list of all available templates in the echtpost account.

How to build Echtpost MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Echtpost MCP?

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

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

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

Used by agents from

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Context
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HubSpot
Agent.ai
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