Connect Claude to Microsoft Teams — read/send messages, list channels, search chats.
Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"teams": {
"cwd": "/path/to/teams-mcp-server",
"args": [
"/path/to/teams-mcp-server/dist/index.js"
],
"command": "node"
}
}
}Are you the author?
Add this badge to your README to show your security score and help users find safe servers.
The first open-source Microsoft Teams connector for Claude. Any Microsoft 365 user can connect — just sign in with your work account. No setup, no credentials, no self-hosting required.
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y 'npm' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Five weighted categories — click any category to see the underlying evidence.
Packing does not respect root-level ignore files in workspaces
### Impact `npm pack` ignores root-level `.gitignore` & `.npmignore` file exclusion directives when run in a workspace or with a workspace flag (ie. `--workspaces`, `--workspace=<name>`). Anyone who has run `npm pack` or `npm publish` with workspaces, as of [v7.9.0](https://github.com/npm/cli/releases/tag/v7.9.0) & [v7.13.0](https://github.com/npm/cli/releases/tag/v7.13.0) respectively, may be affected and have published files into the npm registry they did not intend to include. ### Patch - Up
Incorrect Permission Assignment for Critical Resource in NPM
An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.
Local Privilege Escalation in npm
Affected versions of `npm` use predictable temporary file names during archive unpacking. If an attacker can create a symbolic link at the location of one of these temporary file names, the attacker can arbitrarily write to any file that the user which owns the `npm` process has permission to write to, potentially resulting in local privilege escalation. ## Recommendation Update to version 1.3.3 or later.
npm CLI exposing sensitive information through logs
Versions of the npm CLI prior to 6.14.6 are vulnerable to an information exposure vulnerability through log files. The CLI supports URLs like `<protocol>://[<user>[:<password>]@]<hostname>[:<port>][:][/]<path>`. The password value is not redacted and is printed to stdout and also to any generated log files.
npm Vulnerable to Global node_modules Binary Overwrite
Versions of the npm CLI prior to 6.13.4 are vulnerable to a Global node_modules Binary Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a `serve` binary, any subsequent installs of packages that also create a `serve` binary would overwrite the first binary. This will not overwrite system binaries but only binaries put into the global node_modules directory. This b
Click any tool to inspect its schema.
Be the first to review
Have you used this server?
Share your experience — it helps other developers decide.
Sign in to write a review.
Others in communication
Asynchronous coordination layer for AI coding agents: identities, inboxes, searchable threads, and advisory file leases over FastMCP + Git + SQLite
Social layer for Claude Code - DMs, presence, discovery, and games between AI-assisted developers
End-to-end encrypted multi-agent chat rooms. Client-side crypto; zero chat logs.
PubNub Model Context Protocol MCP Server for Cursor and Claude
MCP Security Weekly
Get CVE alerts and security updates for io.github.SurgeEnterpriseAI/teams-mcp-server and similar servers.
Start a conversation
Ask a question, share a tip, or report an issue.
Sign in to join the discussion.
The first open-source Microsoft Teams connector for Claude. Any Microsoft 365 user can connect — just sign in with your work account. No setup, no credentials, no self-hosting required.
Read messages, list channels, search across Teams, send messages — all from Claude Code, Claude Desktop, or Claude Cowork.
Built by SurgeEnterpriseAI.
┌─────────────┐ Click "Connect" ┌──────────────────────┐
│ Claude User │ ──────────────────────► │ Teams MCP Server │
│ (Cowork/ │ │ (hosted by Surge) │
│ Desktop/ │ SSE/MCP Protocol │ │
│ Code) │ ◄─────────────────────► │ ┌────────────────┐ │
└─────────────┘ │ │ OAuth (common) │ │
│ │ Any M365 user │ │
User signs in with their │ │ can sign in │ │
own Microsoft account │ └───────┬────────┘ │
─────────────────────► │ │ │
│ ┌───────▼────────┐ │
│ │ Microsoft │ │
│ │ Graph API │ │
│ └────────────────┘ │
└──────────────────────┘
The user connects their own Microsoft 365 account. They see their own teams, their own channels, their own messages. Each user's tokens are isolated. The server is the bridge — it never stores messages, just passes them through.
/connect, sign in with Microsoft, doneIf someone is already hosting this server (e.g., on https://teams-mcp.surgeai.com):
No API keys, no Azure portal, no setup.
git clone https://github.com/SurgeEnterpriseAI/teams-mcp-server.git
cd teams-mcp-server
npm install
npm run build
Teams MCP Serverhttps://your-server.com/auth/callbackConfigure:
ChannelMessage.Read.All, ChannelMessage.SendChat.Read, Chat.ReadWrite, ChatMessage.SendTeam.ReadBasic.All, Channel.ReadBasic.AllUser.Readcp .env.example .env
# Set TEAMS_CLIENT_ID, TEAMS_CLIENT_SECRET
# Set BASE_URL and REDIRECT_URI to your production URL
# TEAMS_AUTHORITY=common (multi-tenant, default)
Deploy to Railway, Render, Azure App Service, or any Node.js host:
# Railway
railway login && railway init && railway up
# Or Azure
az webapp up --name teams-mcp-server --runtime "NODE:20-lts"
# Or just run directly
TRANSPORT_MODE=http node dist/
... [View full README on GitHub](https://github.com/SurgeEnterpriseAI/teams-mcp-server#readme)