outlook-local-mcp

outlook-local-mcp is a plugin for Claude Code from desek/outlook-local-mcp. Its manifest loads nothing; the 1 skill it bundles cost 55 tokens per session together, scanned A, original, MIT.

A local connection to Microsoft Outlook services through Microsoft Graph, Microsoft's interface for working with Microsoft 365 data. It covers calendars, email, contacts, and Teams while keeping access tokens in the computer's operating-system keychain.

In plain words
What is it for?
It is for reading and managing mail, checking schedules, working with contacts, and accessing Teams messages or meeting information.
Why use it?
It lets a coding agent work with Outlook data without sending the credentials to a separate hosted service.

Plugin for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

Good fit It is for reading and managing mail, checking schedules, working with contacts, and accessing Teams messages or meeting information.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add desek/outlook-local-mcp
/plugin install outlook-local-mcp
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/desek/outlook-local-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for outlook-local-mcp

README.md
[![agentmods](https://agentmods.dev/badge/plugins/desek/outlook-local-mcp/plugin/github.svg)](https://agentmods.dev/plugins/desek/outlook-local-mcp/plugin)
Your own site
<a href="https://agentmods.dev/plugins/desek/outlook-local-mcp/plugin"><img src="https://agentmods.dev/badge/plugins/desek/outlook-local-mcp/plugin/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for outlook-local-mcp

Your own site · 80×15
<a href="https://agentmods.dev/plugins/desek/outlook-local-mcp/plugin"><img src="https://agentmods.dev/badge/plugins/desek/outlook-local-mcp/plugin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 1 skill cost 55 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

outlook-local-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 15d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugin/.claude-plugin/plugin.json · 92 lines

How it starts

The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "name": "outlook-local-mcp",
  "displayName": "Outlook Local MCP",
  "version": "1.0.0-rc.2",
  "description": "Local MCP server for Microsoft Outlook calendar, mail, contacts, and Teams through Microsoft Graph. Runs on your machine; tokens stay in the OS keychain.",
  "author": {
    "name": "Daniel Grenemark",
    "url": "https://github.com/desek"
  },
  "homepage": "https://outlook-local-mcp.com",
  "repository": "https://github.com/desek/outlook-local-mcp",
  "license": "MIT",
  "keywords": [
    "outlook",
    "microsoft-graph",
    "calendar",
    "mail",
    "teams",
    "mcp"
  ],
  "icon": "./icon.png",
  "documentationUrl": "https://outlook-local-mcp.com/docs/quickstart",
  "supportUrl": "https://github.com/desek/outlook-local-mcp/issues",
  "privacyPolicyUrl": "https://github.com/desek/outlook-local-mcp/blob/main/PRIVACY.md",
  "userConfig": {
    "client_id": {
      "type": "string",
      "title": "Microsoft Application (Client) ID",
      "description": "The app used to access Microsoft Graph. Default: 'outlook-desktop' (Microsoft Office, works out of the box with device_code auth). Use 'outlook-local-mcp' for the project's own app registration. To use browser auth, register your own app in Entra ID with http://localhost redirect URI and paste the client ID here.",
      "default": "outlook-desktop"
    },
    "tenant_id": {
      "type": "string",
      "title": "Entra ID Tenant ID",
      "description": "Your Entra ID tenant. Use 'common' (default) for any Microsoft account, 'organizations' for work/school only, or 'consumers' for personal accounts only. Advanced: paste a specific tenant GUID to restrict access to a single organization.",
      "default": "common"
    },
    "auth_method": {
      "type": "string",
      "title": "Authentication Method",
      "description": "How you sign in to Microsoft. 'device_code' (default): visit a URL and enter a code — works everywhere, no app registration needed. 'browser': opens your browser automatica

Read the full file on GitHub · 92 lines

Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 55 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 15d ago First seen · 92 lines scan A 862c623e15c9

Subscribe to this mod's changes

outlook-local-mcp is a plugin published in the GitHub repository desek/outlook-local-mcp (44 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-04.