How to connect Handwrytten 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 Handwrytten account to Cowork via Composio Connect, enabling it to send a thank you card to John Doe, schedule a handwritten birthday note delivery, list all pending Handwrytten orders, and more such actions on your behalf without compromising your account security.

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Handwrytten

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Handwrytten automates handwritten cards and notes using robotic penmanship. Save time while adding a personal touch to your customer or team communications.

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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 Handwrytten account to Cowork via Composio Connect, enabling it to send a thank you card to John Doe, schedule a handwritten birthday note delivery, list all pending Handwrytten orders, and more such actions on your behalf without compromising your account security.

Also integrate Handwrytten with

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

Connecting Handwrytten 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 Handwrytten account

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

For example, ask Cowork to:

"Send a thank you card to John Doe"
"Schedule a handwritten birthday note delivery"
"List all pending Handwrytten orders"

It will prompt you to authenticate and authorize access.

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

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

The Handwrytten MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Handwrytten account. It provides structured and secure access so your agent can perform Handwrytten operations on your behalf.

TOOLS

Supported Tools

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

Add Recipient

Tool to add a recipient address to the user's addressbook in Handwrytten.

Calculate Order Taxes

Tool to calculate taxes for Handwrytten basket orders.

Check Authentication

Tool to verify API key authentication validity for Handwrytten.

Clear Basket

Tool to clear all items from the shopping basket.

Create Template

Tool to create a new template for the current user.

Create User Address

Tool to create a new user address in Handwrytten.

Delete Custom Image

Tool to delete a custom image/logo from Handwrytten.

Delete Recipient Address

Tool to delete one or more recipient addresses from user's profile.

Delete Template

Tool to delete a user's template by its ID.

Get Basket (New Method)

Tool to retrieve the user's basket using the new method.

Get Basket Count

Tool to retrieve the count of items currently in the basket.

Get Basket Item

Tool to retrieve a basket item by its ID from Handwrytten.

Get Card Details

Tool to get detailed information about a specific card in the Handwrytten catalog.

Get List of Addresses

Tool to retrieve a list of all addresses associated with the user's account.

Get Random Cards

Tool to retrieve random cards from Handwrytten.

Get Template Details

Tool to get detailed information about a card text template in the Handwrytten catalog.

Get Current User Info

Tool to retrieve information about the currently authenticated user.

Get User Address

Tool to retrieve the authenticated user's address and billing information.

List Basket Orders Grouped

Tool to list all basket orders grouped by basket.

List Past Baskets

Tool to retrieve a list of user's past baskets.

List Cards

Tool to retrieve a list of available Handwrytten cards with optional filtering and pagination.

List Categories

Tool to retrieve the list of available card categories from Handwrytten.

List Countries

Tool to retrieve the list of countries available in Handwrytten.

List Credit Cards

Tool to list all credit cards associated with the Handwrytten account.

List Fonts

Tool to retrieve the list of available handwriting fonts.

List Fonts for Customizer

Tool to list fonts available for use with the card customizer.

List Gift Cards

Tool to retrieve the list of available gift cards with their denominations and pricing.

List Custom User Images

Tool to retrieve a list of custom user images uploaded to Handwrytten.

List Inserts

Tool to retrieve a list of available inserts from Handwrytten.

List Orders

Tool to retrieve a list of user's past orders from Handwrytten.

List Orders Grouped

Tool to retrieve the user's order history grouped by basket.

List Past Orders

Tool to retrieve a list of user's past orders from Handwrytten API.

List Recipients

Tool to retrieve a list of recipient addresses that the user has previously saved.

List Signatures

Tool to retrieve the list of available signatures for use in card orders.

List States

Tool to retrieve the list of states/provinces available in Handwrytten.

List Template Categories

Tool to retrieve the list of available template categories from Handwrytten.

List Templates

Tool to retrieve a list of card text templates from Handwrytten.

Logout User

Tool to logout user from Handwrytten application.

Place Order in Basket

Tool to add an order to the basket in Handwrytten.

Tool to register a new Handwrytten user account.

Request Password Reset

Tool to request a password reset email for a Handwrytten account.

Set Default Address

Tool to set a default return address for the user in Handwrytten.

Set Test Mode

Tool to set test mode for the current Handwrytten user.

Update Basket Item

Tool to update an existing basket item in Handwrytten.

Update Billing Information

Tool to update user billing information (country, zip, address) for tax calculations in Handwrytten.

Update Recipient

Tool to update a recipient address in the user's addressbook in Handwrytten.

Update Template

Tool to update an existing user template in Handwrytten.

Upload Custom Logo

Tool to upload a custom image (logo or cover) to Handwrytten for use with custom cards.

FRAMEWORKS

How to build Handwrytten MCP Agent with another framework

OpenAI Agents SDK

Use Handwrytten MCP with OpenAI Agents SDK

Claude Agent SDK

Use Handwrytten MCP with Claude Agent SDK

Claude Code

Use Handwrytten MCP with Claude Code

Codex

Use Handwrytten MCP with Codex

OpenClaw

Use Handwrytten MCP with OpenClaw

Hermes

Use Handwrytten MCP with Hermes

CLI

Use Handwrytten MCP with CLI

Google ADK

Use Handwrytten MCP with Google ADK

LangChain

Use Handwrytten MCP with LangChain

Vercel AI SDK

Use Handwrytten MCP with Vercel AI SDK

Mastra AI

Use Handwrytten MCP with Mastra AI

LlamaIndex

Use Handwrytten MCP with LlamaIndex

CrewAI

Use Handwrytten MCP with CrewAI

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Google Sheets

Oauth2

Google Sheets is a cloud-based spreadsheet tool for real-time collaboration and data analysis. It lets teams work together from anywhere, updating information instantly.

Notion

Oauth2Api Key

Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place.

Airtable

Oauth2Api Key

Airtable combines the flexibility of spreadsheets with the power of a database for easy project and data management. Teams use Airtable to organize, track, and collaborate with custom views and automations.

Asana

Oauth2

Asana is a collaborative work management platform for teams to organize and track projects. It streamlines teamwork, boosts productivity, and keeps everyone aligned on goals.

FAQ

Frequently asked questions

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

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

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Customer stories

Teams ship real agents on Composio

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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