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How to connect Microsoft To Do with ChatGPT

Connect ChatGPT 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 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.

25 Tools

How to connect Microsoft To Do MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your Microsoft To Do account to ChatGPT via Composio Connect, so it can create and update tasks, complete tasks, manage task lists, add checklist items, and attach files through natural language commands without ever putting your account credentials at risk.

For exact tool slugs and parameter tables, see the tool catalog in the Composio docs.

Also integrate Microsoft To Do with

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Microsoft To Do integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,700+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account. We will use the ChatGPT desktop app, and the steps are the same on the web.
  • Access to the Microsoft To Do workspace you want to connect.
  • Composio plugin.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Microsoft To Do to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread Microsoft To Do messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Microsoft To Do.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting Microsoft To Do

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

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
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 in a specified task list.

Create Linked Resource

Attach a partner-application link to an existing 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 Linked Resources

List external resources linked to a Microsoft To Do task.

List Task Attachments

List the files attached to a Microsoft To Do task.

List Task Lists

List the connected user's To Do task lists, one page at a time.

List Tasks

List the tasks in a To Do task list.

Sync Task Lists

Read one page of Microsoft To Do task-list changes.

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, including title, notes, importance, status, dates, and categories; set status to completed to mark it done.

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

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FAQ

Frequently asked questions

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