How to integrate One drive MCP with Codex

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Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With One drive MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate One drive with

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Large tool responses: Handle them to minimise context rot.
  • Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

How to install One drive MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(Optional) Authenticate with OAuth

To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.

bash
codex mcp login composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on dashboard.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. Restart and verify if it's there in .codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }

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

The One drive MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your OneDrive account. It provides structured and secure access to your cloud files and folders, so your agent can perform actions like uploading documents, sharing files, managing storage, and retrieving version histories on your behalf.

  • File and folder management: Effortlessly copy, move, or delete files and folders, keeping your OneDrive organized with just a prompt.
  • Easy sharing and collaboration: Instantly generate secure sharing links for documents or folders, making collaboration with others seamless.
  • File download and preview: Have your agent fetch files or retrieve visual thumbnails for quick previews and streamlined access.
  • Access control and permissions review: Check who can view or edit any file or folder, and manage sharing permissions without manual clicks.
  • Version tracking and quota monitoring: Retrieve version histories for files and monitor your storage quota to stay on top of changes and space usage.

Supported Tools & Triggers

Tools
Triggers
Check In Drive ItemTool to check in a checked out driveItem resource, making the version of the document available to others.
Checkout Drive ItemTool to check out a driveItem to prevent others from editing it and make your changes invisible until checked in.
Copy ItemTool to copy a DriveItem (file or folder) to a new location asynchronously.
Create Drive Item PermissionTool to create a new permission on a OneDrive drive item.
Create Sharing LinkTool to create a sharing link for a DriveItem (file or folder) by its unique ID.
Delete ItemTool to delete a DriveItem (file or folder) by its unique ID from the authenticated user's OneDrive.
Permanently Delete Drive ItemTool to permanently delete a driveItem by its ID without moving it to the recycle bin.
Delete Drive Item PermissionTool to delete a permission from a drive item.
Delete Shares PermissionTool to delete the permission navigation property for a shared drive item.
Discard CheckoutTool to discard the checkout of a driveItem, releasing it and discarding any changes made while checked out.
Download a fileDownloads a file from a user's OneDrive using its item ID, which must refer to a file and not a folder.
Download file by pathDownloads the contents of a file from OneDrive by its path.
Download item as formatTool to download the contents of a driveItem converted to a specific format (e.
Download Drive Item Version ContentTool to download the contents of a specific previous version of a drive item (file).
Follow Drive ItemTool to follow a driveItem (file or folder) in OneDrive or SharePoint.
Get DriveRetrieves the properties and relationships of a Drive resource by its unique ID.
Get DriveItem by Sharing URLTool to resolve a OneDrive/SharePoint sharing URL (or shareId) to a DriveItem with driveId and itemId.
Get Drives FollowingTool to retrieve a specific followed driveItem from a drive.
Get Group DriveTool to retrieve the document library (drive) for a Microsoft 365 group.
Get Item MetadataRetrieves the metadata of a DriveItem by its unique ID.
Get Item PermissionsRetrieves the permissions of a DriveItem by its unique ID within a specific Drive.
Get Item ThumbnailsTool to retrieve the thumbnails associated with a DriveItem.
Get Item VersionsTool to retrieve the version history of a DriveItem by its unique ID.
Get Recent ItemsGet files and folders recently accessed by the user.
Get Drive Root FolderTool to retrieve metadata for the root folder of the signed-in user's OneDrive.
Get Shared Item by ShareIdTool to access a shared DriveItem or collection of shared items using a shareId or encoded sharing URL.
Get Shared ItemsTool to retrieve items shared with the authenticated user (not items the user has shared with others).
Get SharePoint List ItemsTool to get the items (list items) within a specific SharePoint list on a site.
Get Site DetailsRetrieves metadata for a specific SharePoint site by its ID.
Get SharePoint Site Page ContentGets the content of a modern SharePoint site page.
Get Drive Special FolderTool to retrieve a special folder in OneDrive by name.
Grant Shares PermissionTool to grant users access to a link represented by a permission using an encoded sharing URL.
Invite User to Drive ItemTool to invite users or grant permissions to a specific item in a OneDrive drive.
List Drive ActivitiesTool to retrieve recent activities on the authenticated user's OneDrive.
List Drive BundlesTool to retrieve a list of bundle resources from a specified drive.
List DrivesTool to retrieve a list of Drive resources available to the authenticated user, or for a specific user, group, or site.
List Folder ChildrenList the direct children (files/folders) of a OneDrive/SharePoint folder by DriveItem ID or path.
List Drive Item ActivitiesTool to list recent activities for a specific item in a OneDrive drive.
List Root Drive ChangesTool to list changes in the root of the user's primary drive using a delta token.
List Shares PermissionTool to retrieve permission details for a shared OneDrive or SharePoint item using a share ID.
List SharePoint List Items DeltaTool to track changes to items in a SharePoint list using a delta query.
List Site ColumnsTool to list all column definitions for a SharePoint site.
List Site Drive Items DeltaTool to track changes to DriveItems in the default document library of a SharePoint site.
List Site ListsTool to list all lists under a specific SharePoint site.
List Site SubsitesTool to list all subsites of a SharePoint site.
List SubscriptionsTool to list the current subscriptions for the authenticated user or app.
Move ItemTool to move a file or folder to a new parent folder in OneDrive.
Create folderCreates a new folder in the user's OneDrive, automatically renaming on conflict, optionally within a specified parent_folder (by ID or full path from root) which, if not the root, must exist and be accessible.
Create a new text fileCreates a new plain-text file with specified content in the authenticated user's personal OneDrive, using either the folder's unique ID or its absolute path relative to the user's OneDrive root (paths are automatically resolved to IDs); note that OneDrive may rename or create a new version if the filename already exists.
Find ItemNon-recursively finds an item (file or folder) in a specified OneDrive folder; if `folder` is provided as a path, it must actually exist.
Find FolderFinds folders by name within an accessible parent folder in OneDrive, or lists all its direct child folders if no name is specified.
List OneDrive itemsRetrieves all files and folders as `driveItem` resources from the root of a specified user's OneDrive, automatically handling pagination.
Upload fileUploads a file to a specified OneDrive folder, automatically creating the destination folder if it doesn't exist, renaming on conflict, and supporting large files via chunking.
Preview Drive ItemGenerates or retrieves a short-lived, permission-bound embeddable URL for a preview of a specific item.
Restore Deleted ItemTool to restore a deleted OneDrive driveItem (file or folder) from the recycle bin.
Search ItemsSearch OneDrive for files and folders by keyword.
Delete Drive FollowingTool to unfollow a driveItem by removing it from the user's followed items collection.
Update Drive Item MetadataTool to update the metadata of a specific item (file or folder) in OneDrive.
Update Drive Item PermissionsTool to update the roles of an existing permission on a OneDrive drive item.
Update File ContentTool to create an upload session for updating an existing file's content in OneDrive.

Conclusion

You've successfully integrated One drive with Codex using Composio's MCP server. Now you can interact with One drive directly from your terminal, VS Code, or the Codex App using natural language commands.

Key benefits of this setup:

  • Seamless integration across CLI, VS Code, and standalone app
  • Natural language commands for One drive operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

  • Try asking Codex to perform various One drive operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities

How to build One drive MCP Agent with another framework

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VS Code logo

VS Code

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FAQ

What are the differences in Tool Router MCP and One drive MCP?

With a standalone One drive MCP server, the agents and LLMs can only access a fixed set of One drive tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from One drive and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Codex?

Yes, you can. Codex 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 One drive tools.

Can I manage the permissions and scopes for One drive while using Tool Router?

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

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