Outlook Assistant MCP Server

MCP server for Outlook email, calendar, and contacts - let your AI assistant manage your inbox directly from the conversation. It runs locally over stdio via the published package.

People who work with calendar, contacts and email and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-09 · ★ 37 · #9 OF 90 MAINTAINED EMAIL · VERIFIED 2026-09-18

MIT · JavaScript servers · how we verify → /methodology

01 · Install Outlook Assistant

before you install - you'll need

Set OUTLOOK_CLIENT_ID, OUTLOOK_CLIENT_SECRET, OUTLOOK_ALLOWED_RECIPIENTS, USE_TEST_MODE before connecting. OUTLOOK_MAX_EMAILS_PER_SESSION is optional or environment-specific per the README.

Claude Code

claude mcp add littlebearapps-outlook-assistant -- npx -y @littlebearapps/outlook-assistant

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "littlebearapps-outlook-assistant": {
      "command": "npx",
      "args": [
        "-y",
        "@littlebearapps/outlook-assistant"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @littlebearapps/outlook-assistant - published under the repo owner's npm scope (@littlebearapps)

registry namespace io.github.littlebearapps is GitHub-verified and matches the repo owner

03 · What Outlook Assistant can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v3.11.1 · 2026-09-09

search filter composition and export filename collisions (v3.11.1)

v3.11.0 · 2026-09-09

v3.11.0 - fixes & polish (#68, #69, #72) + dev-dependency sweep

v3.10.0 · 2026-09-09

clear the production audit gate and watch for regressions (#215) · v3.10.0 - search correctness (#217, #229, #230, #231)

04 · Who maintains Outlook Assistant

outlook-assistant is maintained by littlebearapps. We track 2 MCP servers from littlebearapps - 2 actively maintained, 74 combined GitHub stars, oldest repo from Dec 2025.

05 · Facts

repository: github.com/littlebearapps/outlook-assistant
category: email - ranked #9 of 90 actively-maintained email servers as of 2026-09-18.
release cadence: 6 releases in the last 90 days (latest 2026-09-09)
registry: io.github.littlebearapps/outlook-assistant (active, first published 2026-03-09 · 16 versions)
packages: npm:@littlebearapps/outlook-assistant

06 · Outlook Assistant FAQ

What is Outlook Assistant?

MCP server for Outlook email, calendar, and contacts - let your AI assistant manage your inbox directly from the conversation. It runs locally over stdio via the published package.

Is Outlook Assistant still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-09 and it shipped 6 releases in the last 90 days. We re-verify nightly.

How do I install Outlook Assistant?

Run `npx -y @littlebearapps/outlook-assistant`. The README documents 5 environment variables (OUTLOOK_CLIENT_ID, OUTLOOK_CLIENT_SECRET, OUTLOOK_MAX_EMAILS_PER_SESSION…) to set first. Set OUTLOOK_CLIENT_ID, OUTLOOK_CLIENT_SECRET, OUTLOOK_ALLOWED_RECIPIENTS, USE_TEST_MODE before connecting. OUTLOOK_MAX_EMAILS_PER_SESSION is optional or environment-specific per the README. You can also paste the ready-made client config above.

Does Outlook Assistant run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Outlook Assistant

Alternatives to Outlook Assistant

Maintained email servers if Outlook Assistant isn't the fit.

More email MCP servers · Inbox Check - Email Deliverability Test · Qorami · BlackVeil DNS & Email Security Scanner · Proactive MCP

More JavaScript MCP servers · Local Dfw MCP · Logly · Understand Quickly · Lorg MCP Server · see all