How to connect Echtpost to Claude Cowork

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.

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Echtpost

Api Key

Echtpost is a secure digital communication platform for encrypted document and message exchange. It ensures confidential data stays private and protected during transmission.

1 Tools

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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

OpenAI Agents SDK Claude Agent SDK Claude Code Codex OpenClaw Hermes CLI Google ADK LangChain Vercel AI SDK Mastra AI LlamaIndex CrewAI

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.

TOOLS

Supported Tools

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

List templates

This tool retrieves a list of all available templates in the Echtpost account.

FRAMEWORKS

How to build Echtpost MCP Agent with another framework

OpenAI Agents SDK

Use Echtpost MCP with OpenAI Agents SDK

Claude Agent SDK

Use Echtpost MCP with Claude Agent SDK

Claude Code

Use Echtpost MCP with Claude Code

Codex

Use Echtpost MCP with Codex

OpenClaw

Use Echtpost MCP with OpenClaw

Hermes

Use Echtpost MCP with Hermes

CLI

Use Echtpost MCP with CLI

Google ADK

Use Echtpost MCP with Google ADK

LangChain

Use Echtpost MCP with LangChain

Vercel AI SDK

Use Echtpost MCP with Vercel AI SDK

Mastra AI

Use Echtpost MCP with Mastra AI

LlamaIndex

Use Echtpost MCP with LlamaIndex

CrewAI

Use Echtpost MCP with CrewAI

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Gmail

Oauth2

Gmail is Google's email service with powerful spam protection, search, and G Suite integration. It keeps your inbox organized and makes communication fast and reliable.

Outlook

Oauth2S2s Oauth2

Outlook is Microsoft's email and calendaring platform for unified communications and scheduling. It helps users stay organized with powerful email, contacts, and calendar management.

Slack

Oauth2

Slack is a channel-based messaging platform for teams and organizations. It helps people collaborate in real time, share files, and connect all their tools in one place.

Gong

BasicOauth2

Gong is a platform for video meetings, call recording, and team collaboration. It helps teams capture conversations, analyze calls, and turn insights into action.

FAQ

Frequently asked questions

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.

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.

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.

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.

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Customer stories

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati

Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya

Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave

CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu

Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola

Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche

Co-Founder, Ingram Technologies