How to connect Thanks io 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 Thanks io account to Cowork via Composio Connect, enabling it to add new customer to holiday mailing list, show all available handwritten font styles, create a mailing list for event attendees, and more such actions on your behalf without compromising your account security.

Also integrate Thanks io with

Connecting Thanks 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 Thanks io account

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

For example, ask Cowork to:

  • "Add new customer to holiday mailing list"
  • "Show all available handwritten font styles"
  • "Create a mailing list for event attendees"

It will prompt you to authenticate and authorize access.

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

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

The Thanks 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 Thanks io account. It provides structured and secure access to your direct mail platform, so your agent can perform actions like managing mailing lists, sending personalized postcards, choosing templates, and handling recipients automatically on your behalf.

  • Mailing list management: Effortlessly create, list, or delete mailing lists, and keep your recipient groups organized for targeted campaigns.
  • Recipient automation: Quickly add or remove recipients from mailing lists, ensuring your contacts are always up to date and ready for new mailings.
  • Personalized mail creation: Enable your agent to select from available handwriting styles or image templates, so every postcard, letter, or notecard feels truly unique.
  • Template selection and preview: Browse and choose from message and image templates to customize your direct mail content for any occasion.
  • Automated sending workflows: Trigger stored send actions to deliver mailings at the right moment, keeping your outreach timely and efficient.

Supported Tools & Triggers

Tools
Add Recipient to Mailing ListTool to add a new recipient to a mailing list.
Create Mailing ListTool to create a new mailing list.
Delete Mailing ListTool to delete a mailing list.
Delete Recipient from Mailing ListTool to remove a recipient from a mailing list.
Delete Sub-AccountTool to delete a specific sub-account by id.
Execute Stored SendTool to execute a previously created stored send.
List Handwriting StylesTool to retrieve available handwriting styles.
List Image TemplatesTool to retrieve a list of available image templates.
List Mailing ListsTool to list all mailing lists.
List Message TemplatesTool to list available message templates.
Buy Radius Search Mailing ListTool to buy or append a radius search mailing list based on address and radius.
Preview letter sendTool to preview a letter send as pdf.
Preview NotecardTool to preview a notecard send.
Preview PostcardTool to preview a postcard send.
Preview Windowless LetterTool to preview a windowless letter send.
List OrdersTool to list recent orders.
Search Orders by Recipient Street AddressTool to search orders by recipient street address.
Search Orders by Recipient Full NameTool to search orders by recipient full name.
Order Summary StatisticsTool to retrieve order summary statistics for a date range.
Proof PostcardTool to generate a pdf proof of a postcard's front and back.
Create Multiple RecipientsTool to create multiple recipients at once in a mailing list.
Delete Recipient by AddressTool to delete a recipient by address and postal code.
Get Recipient DetailsTool to get details for a specific recipient by id.
Search Recipients by EmailTool to search recipients by email across mailing lists.
Update RecipientTool to update existing recipient details by recipient id.
Send PostcardTool to send a customized postcard.
Stored Send NotecardTool to create a stored send for a notecard.
Stored Send PostcardTool to create a stored send for a postcard.
Stored Send Windowless LetterTool to create a stored send for a windowless letter.
Create Sub-AccountTool to create a new sub-account.
List Sub AccountsTool to list all available sub-accounts.
Get Sub Account DetailsTool to retrieve details for a specific sub-account by id.
Update Sub-AccountTool to update details for a specific sub-account.

How to build Thanks io MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Thanks io MCP?

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

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

Yes, absolutely. You can configure which Thanks 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.

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 Thanks io data and credentials are handled as safely as possible.

Used by agents from

Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.