How to connect Docupost 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 Docupost account to Cowork via Composio Connect, enabling it to mail a PDF letter to your accountant, send a custom postcard to new customers, post a signed contract to a client address, and more such actions on your behalf without compromising your account security.

Connecting Docupost 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.

2. Add the Composio MCP server

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

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

The Docupost MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Docupost account. It provides structured and secure access to Docupost's print and mail services, so your agent can send letters, mail postcards, and automate physical document delivery on your behalf.

• Automated letter mailing: Direct your agent to send digital files as physical letters to any recipient in the U.S., specifying sender and recipient details.
• Personalized postcard delivery: Have your agent create and mail custom postcards, using front and back image designs tailored for your recipients.
• Bulk document distribution: Let your agent send batches of letters or postcards to multiple addresses, streamlining mass mail campaigns or notifications.
• Seamless file-to-mail conversion: Enable your agent to instantly turn PDFs or images into tangible mail pieces, no printing or trips to the post office required.