~/web4w3›MSTeamsMCP Server
MSTeams — README.md
❯cat README.md

# MSTeams MCP

An MCP server for Microsoft Teams using the Microsoft Graph API. Enables AI clients to read, send, and manage Teams messages, channels, and conversations directly from Claude Code or any MCP-compatible client.

❯cat MSTeams/ARCHITECTURE.md

## How It Works

The MCP server authenticates to Microsoft Graph API using OAuth2 client credentials (Azure App Registration). It exposes MCP tools for listing teams, channels, and messages — and for sending messages to any channel or chat. Token refresh is handled transparently.

MCP Client (Claude) ──stdio──▶ MSTeams MCP Server
                                       └── OAuth2 (Azure AAD)
                                       └── MS Graph API v1.0
                                              └── /teams
                                              └── /channels
                                              └── /chats/messages
❯MSTeams --demo

## Screenshots

msteams-mcp — list channels
❯  list_channels  team=Engineering

   ID              NAME                 MEMBERS
   ─────────────────────────────────────────────
   chan_001        General              24
   chan_002        Backend              12
   chan_003        Frontend             9
   chan_004        DevOps               7
   chan_005        Random               24
msteams-mcp — read + send message
❯  list_messages  channel=Backend  limit=3

   [10:01]  Alex:   PR #2841 is ready for review
   [10:04]  Maria:  On it! Checking now
   [10:09]  CI Bot: All checks passed ✓

❯  send_message  channel=Backend
   text: "Merging PR #2841. Staging updated."

   ✓  Message sent
❯grep -n "## Features" MSTeams/README.md

## Features

  • +Read and send Teams messages
  • +Channel and conversation management
  • +MS Graph API integration
  • +Works with any MCP client
❯MSTeams --compare

## vs. The Field

FeatureMSTeams MCPDirect MS Graph APIZapier Teams
MCP protocol native✓✗✗
Read + write messages✓✓partial
Claude Code integration✓✗✗
Free / open source✓freepaid
Zero UI required✓✗✗
❯cd MSTeams && cat INSTALL.md

## Installation

1

Register an Azure App

portal.azure.com → Azure Active Directory → App registrations → New registration.

⚠ Add API permissions: Chat.Read, Chat.ReadWrite, ChannelMessage.Read.All, ChannelMessage.Send.

2

Install

No build step required.

npx -y @web4w3/install msteams
3

Set credentials

export AZURE_TENANT_ID=your-tenant-id
export AZURE_CLIENT_ID=your-client-id
export AZURE_CLIENT_SECRET=your-client-secret
4

Add to Claude config

{
  "mcpServers": {
    "msteams": {
      "command": "npx",
      "args": ["-y", "@web4w3/install", "msteams"],
      "env": {
        "AZURE_TENANT_ID": "your-tenant-id",
        "AZURE_CLIENT_ID": "your-client-id",
        "AZURE_CLIENT_SECRET": "your-client-secret"
      }
    }
  }
}
❯cat MSTeams/package.json | jq '.dependencies | keys'

## Tech Stack

Node.jsTypeScriptMS Graph APIMCP SDK
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