Full read-write Claude connector for Microsoft Teams
Make Claude post to channels and reply in threads in Microsoft Teams
Stop switching apps to paste an update into the right channel. Claude reads recent messages, drafts the post or thread reply where the conversation already lives, and sends only once you approve.
Microsoft Teams is Microsoft's chat and collaboration hub for channels, group chats, and meetings. People want Claude to do more than read messages: to post into the right channel or chat, reply in a thread, and keep conversations moving without leaving the work.
What is a Microsoft Teams MCP server?
A Microsoft Teams MCP server is a small hosted service that exposes Microsoft Teams's data and actions to Claude over the Model Context Protocol, so Claude can draft, send, and triage messages inside your own account. We build it as a custom connector with separate read and write tools, and destructive actions stay gated behind your approval.
What can Microsoft Teams's current connector do today?
Today, the available Microsoft Teams connector tends to be read-leaning or covers a thin slice: Claude can often search and summarize messages, but posting to channels, replying in threads, and managing chats are typically limited. A custom connector adds those write actions through the Microsoft Graph API with scoped, human-in-the-loop controls.
What does full read-write Microsoft Teams access unlock?
Full read-write Microsoft Teams access lets Claude post a message to a specific channel, reply inside an existing thread, send a direct or group chat, and react or mention people once you approve. The drafting and follow-up that used to mean switching apps and copy-pasting happen where the conversation already lives.
- Post a message to a specific Teams channel after you approve it
- Reply inside an existing channel thread, preserving the conversation
- Send a direct or group chat message to teammates
- Add a reaction or mention people to flag a message for attention
- Search recent messages and propose a drafted summary to post back
- Share a link or short update into the right channel on your behalf
Can Claude post a message to a Microsoft Teams channel?
Yes. With a full read-write Microsoft Teams connector, Claude can post a message to the specific channel you choose, drafting the update from recent context first. Posting is a gated write action through the Microsoft Graph API, so the message goes out only after you approve it.
Can Claude reply in a thread in Microsoft Teams?
Claude can reply inside an existing channel thread, preserving the conversation rather than starting a fresh one, and can add a reaction or mention people to flag a message. It composes the reply for you to review, and the outbound reply is sent only after your confirmation.
Will Claude send a Teams chat without my approval?
No. Sending a direct or group chat is a gated write action in Microsoft Teams. Claude can search recent messages, prepare a summary, and draft the chat, but it reaches your teammates only after you approve it. The connector inherits your account permissions and never sees more than you can.
How a Microsoft Teams connector works
We build a small MCP server that authenticates to Microsoft Teams with OAuth 2.0 through the Microsoft Graph API, using the narrowest scopes the work needs. Read tools (search, read messages) and write tools (post, reply, send chat) are separated, and outbound actions like posting or sending a chat require your confirmation. Claude only ever has the access your own Microsoft account already has.
Frequently asked questions
Can Claude post messages to a Microsoft Teams channel?
Will Claude send a Teams chat or reply without my approval?
Does a Microsoft Teams connector get more access than my account has?
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