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Files, notes and calendars

Microsoft 365 MCP server

One Microsoft sign-in covers Outlook mail, the calendar, OneDrive and Teams, and you tick which of them the assistant may reach. It can search and read mail and attachments, look up events and when people are free, find files, and read your Teams chats. Sending, replying, booking a meeting, adding a file or posting in Teams waits for your approval by default.

Connect Microsoft 365 →Set up your assistant
Tools
16 read · 15 change
Sign-in
Your own account
Approval, by default
Changes wait for you
MCP server
Flowplane’s tools
What it can do

What your assistant can do in Microsoft 365

16 tools that read and 15 that change something in Microsoft 365. Reads are allowed; a change marked “asks first” waits for the person’s approval by default, and your workspace’s rules decide the rest.

Reads16

  • Check the connectionSee which account it uses and whether it workswhoami
  • List foldersInbox, sent and your own folderslist_folders
  • Search messagesFind mail by sender, subject, date or unreadsearch_messages
  • Read messagesWho sent them, when, and what they sayread_messages
  • Download an attachmentOne attachment, up to 2 MiBdownload_attachment
  • List calendarsYour calendars and shared oneslist_calendars
  • List eventsEvents between two timeslist_events
  • Read an eventOne event, with its textget_event
  • Find free busyWhen people are freefind_free_busy
  • Search filesFind files and folders by name or contentsearch_files
  • List a folderWhat is in a folderlist_folder
  • Describe a fileName, size, type and linkget_file
  • List teamsYour teamslist_teams
  • List channelsA team's channelslist_channels
  • List chatsYour latest chatslist_chats
  • Read a chatThe latest messages in a chatread_chat

Changesasks first15

  • Send a messageSends right away, as yousend_message
  • Reply to a messageAnswers in the conversation, as youreply_message
  • Forward messagesAttached as they are, or inline, as youforward_message
  • Update messagesMark read or unread, flag, or moveupdate_messages
  • Delete messagesTo Deleted Items, from where you can restore themdelete_messages
  • Create a draftKept in Drafts, never sentcreate_draft
  • Create a mail folderA new folder for mailcreate_mail_folder
  • Create eventAdd an event, and invite peoplecreate_event
  • Update eventChange an eventupdate_event
  • Answer an invitationAccept, maybe or decline, as yourespond_to_event
  • Delete eventDelete an eventdelete_event
  • Create a folderA new folder, never over an existing onecreate_folder
  • Add a text fileA new text file, never over an existing oneupload_text_file
  • Send a chat messageSends right away, as yousend_chat_message
  • Post in a channelPosts right away, as yousend_channel_message
How it connects

Sign-in

Each person signs in with their own Microsoft account, work or school, or a personal one such as outlook.com (Teams only works with work and school accounts). The assistant acts as that person and sees only their mail, calendar, files and chats. For a team mailbox or calendar you can connect one shared account instead, which everyone with access then uses. Flowplane keeps the login sealed; the assistant never sees it.

In Flowplane: In the Flowplane console, add Microsoft 365, tick Outlook, Calendar, OneDrive and Teams as you need them, and sign in with Microsoft.

MCP

Microsoft 365 and MCP

Microsoft runs its own MCP server for Microsoft 365, Work IQ MCP, next to older per-app servers it keeps for backward compatibility. Flowplane does not pass those through: it talks to Microsoft Graph directly, with its own tools for each part, so there is nothing to install or host.

Try it

Things to ask

  • “Which unread mails did I get from our accountant this week?”
  • “When are Sarah and Tom both free on Thursday afternoon? Book an hour then and invite them.”
  • “Find the quote for Janssens in my OneDrive and give me the link.”
  • “What did the project team say in our Teams chat today?”
  • “Reply to Marc’s last mail that Friday at 10 works for us.”
Your assistant

Connect your assistant to Microsoft 365

One Flowplane address works in every assistant below, with the same rules and the same log. Step-by-step setup for each:

FAQ

Questions

What can the assistant change in Microsoft 365?
It can send, reply and forward mail, move, mark and delete messages, make drafts and mail folders, add, change, answer and delete calendar events, add folders and text files to OneDrive, and post in Teams chats and channels. Each of those waits for your approval by default. Deleted mail goes to Deleted Items, where you can restore it.
What is left out on purpose?
It does not read the contents of OneDrive files: it finds them and gives their name, size, type and a link to open them. It never overwrites, shares or deletes files. It does not read what others post in Teams channels, because that needs a tenant administrator’s consent; it can post in them. Attachments over 2 MiB are not fetched.
Is there a limit on how much mail it sends?
Yes. Sending, replying and forwarding share one limit of 30 messages an hour per person.
Which AI assistants can use Microsoft 365 through Flowplane?
Claude, Claude Code, ChatGPT, Cursor, Codex, GitHub Copilot and Mistral Le Chat, and any other client that supports remote MCP servers with sign-in. They all reach Microsoft 365 through the same Flowplane address.
What does it cost?
Free for one person, with up to three apps and five assistants. Personal Pro is €9 a month including VAT; companies start at €99 a month for ten active users. Prices are indicative; see the pricing page.

Flowplane is not affiliated with or endorsed by Microsoft 365’s maker; the name and logo only identify the app. Pricing

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