How to connect Handwrite.io 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 Handwrite.io account to Cowork via Composio Connect, enabling it to create handwritten thank-you cards for donors, track pending handwritten card orders, send birthday cards to VIP customers, and more such actions on your behalf without compromising your account security.

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Handwrite.io is a direct mail service for creating physical handwritten card orders. It helps teams send personal cards with selectable handwriting, stationery, and tracking.

4 Tools

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 Handwrite.io account to Cowork via Composio Connect, enabling it to create handwritten thank-you cards for donors, track pending handwritten card orders, send birthday cards to VIP customers, and more such actions on your behalf without compromising your account security.

Also integrate Handwrite.io with

OpenAI Agents SDKClaude Agent SDKClaude CodeCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

Connecting Handwrite.io 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 Handwrite.io account

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

For example, ask Cowork to:

  • "Create handwritten thank-you cards for donors"
  • "Track pending handwritten card orders"
  • "Send birthday cards to VIP customers"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Handwrite.io 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 Handwrite.io through MCP without you sharing account credentials directly with the agent.

What is the Handwrite.io MCP server, and what's possible with it?

The Handwrite.io MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Handwrite.io account. It provides structured and secure access to handwritten card ordering, stationery, handwriting styles, and order tracking, so your agent can explore available designs, select card options, send cards to recipients, and check order progress on your behalf.

  • Handwritten card sending: Have your agent create handwritten card orders for one or more recipients using your chosen message, handwriting, and stationery.
  • Handwriting style selection: Let the agent review available handwriting styles and their previews to help you choose the right look for each card.
  • Stationery selection: Direct your agent to browse public and custom stationery, including previews, before placing an order.
  • Order tracking: Instruct your agent to check a card order's current status, delivery addresses, environment, and proof images when available.
TOOLS

Supported Tools

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

Get Order

Get a Handwrite order by ID, including its current status, test or live environment, addresses, and proof images when available.

List Handwriting Styles

List the handwriting styles available to the connected Handwrite account, including the style ID required when sending cards and a preview URL.

List Stationery

List public stationery and custom stationery available to the connected Handwrite account, including the card ID required when sending cards and a preview URL.

Send Handwritten Cards

Create handwritten-card orders for one or more recipients.

FRAMEWORKS

How to build Handwrite.io MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Handwrite.io MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Handwrite.io MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Handwrite.io MCP with Claude Code

Codex logo

Codex

Use Handwrite.io MCP with Codex

OpenClaw logo

OpenClaw

Use Handwrite.io MCP with OpenClaw

Hermes logo

Hermes

Use Handwrite.io MCP with Hermes

CLI logo

CLI

Use Handwrite.io MCP with CLI

Google ADK logo

Google ADK

Use Handwrite.io MCP with Google ADK

LangChain logo

LangChain

Use Handwrite.io MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Handwrite.io MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Handwrite.io MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Handwrite.io MCP with LlamaIndex

CrewAI logo

CrewAI

Use Handwrite.io MCP with CrewAI

FAQ

Frequently asked questions

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

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

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