How to connect Microsoft To Do to Claude Cowork

Connect Claude Cowork to Microsoft To Do MCP. Create task for tomorrow's expense report, list overdue tasks from all lists, and more using natural language, with authentication handled for you.

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Microsoft To Do logoMicrosoft To Do
Oauth2

Microsoft To Do is Microsoft’s cloud task management app for lists, tasks, checklist items, reminders, and due dates. It keeps personal and team work organized across devices through Microsoft Graph.

22 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 Microsoft To Do account to Cowork via Composio Connect, enabling it to create task for tomorrow's expense report, list overdue tasks from all lists, add reminder to project checklist item, and more such actions on your behalf without compromising your account security.

Also integrate Microsoft To Do with

OpenAI Agents SDKClaude Agent SDKClaude CodeCodexOpenClawHermesGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Microsoft To Do 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 Microsoft To Do account

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

For example, ask Cowork to:

  • "Create task for tomorrow's expense report"
  • "List overdue tasks from all lists"
  • "Add reminder to project checklist item"

It will prompt you to authenticate and authorize access.

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

What is the Microsoft To Do MCP server, and what's possible with it?

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

TOOLS

Supported Tools

Every Microsoft To Do action and event your agent gets out of the box.

Complete Task

Mark a Microsoft To Do task as completed.

Create Checklist Item

Add a checklist item (subtask) to a Microsoft To Do task.

Create Task

Create a task in a Microsoft To Do task list.

Create Task List

Create a new Microsoft To Do task list.

Delete Checklist Item

Delete a checklist item (subtask) from a Microsoft To Do task.

Delete Task

Delete a task from a Microsoft To Do task list.

Delete Task Attachment

Permanently delete a file attachment from a Microsoft To Do task.

Delete Task List

Delete a Microsoft To Do task list.

Download Task Attachment

Download one file attached to a Microsoft To Do task.

Get Checklist Item

Get a single Microsoft To Do checklist item (subtask) by its id, within a task in a task list.

Get Current User

Return the profile of the Microsoft account connected to this toolkit (whoami / connection verification).

Get Task

Get a single Microsoft To Do task by its id, within a task list.

Get Task Attachment

Get metadata for one file attached to a Microsoft To Do task.

Get Task List

Get a single Microsoft To Do task list by its id.

List Checklist Items

List the checklist items (subtasks) of a To Do task.

List Task Attachments

List the files attached to a Microsoft To Do task.

List Task Lists

List the To Do task lists owned by the connected user.

List Tasks

List the tasks in a To Do task list.

Update Checklist Item

Update a checklist item (subtask) of a Microsoft To Do task: rename it (display_name) and/or check/uncheck it (is_checked).

Update Task

Update fields of an existing Microsoft To Do task (title, notes, importance, status, due/start/reminder dates, categories).

Update Task List

Rename a Microsoft To Do task list (updates its displayName).

Upload Task Attachment

Attach a file up to 25 MB to a Microsoft To Do task.

FRAMEWORKS

How to build Microsoft To Do MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Microsoft To Do MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Microsoft To Do MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Microsoft To Do MCP with Claude Code

Codex logo

Codex

Use Microsoft To Do MCP with Codex

OpenClaw logo

OpenClaw

Use Microsoft To Do MCP with OpenClaw

Hermes logo

Hermes

Use Microsoft To Do MCP with Hermes

Google ADK logo

Google ADK

Use Microsoft To Do MCP with Google ADK

LangChain logo

LangChain

Use Microsoft To Do MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Microsoft To Do MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Microsoft To Do MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Microsoft To Do MCP with LlamaIndex

CrewAI logo

CrewAI

Use Microsoft To Do MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Microsoft To Do MCP with Pydantic AI

AutoGen logo

AutoGen

Use Microsoft To Do MCP with AutoGen

FAQ

Frequently asked questions

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

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

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