Outlook MCP Server

Outlook & OneDrive MCP: personal & enterprise tools for mail, calendar, contacts, tasks, files. This MCP entry surfaces a curated ranking/list from the project README rather than a classic multi-tool integration surface. It runs locally over stdio via the published package.

People connecting email tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-08-22 · ★ 16 · #16 OF 75 MAINTAINED EMAIL · VERIFIED 2026-08-25

MIT · Go servers · how we verify → /methodology

01 · Install Outlook

Claude Code

claude mcp add rlrghb-olkcli -- npx -y olkcli

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "rlrghb-olkcli": {
      "command": "npx",
      "args": [
        "-y",
        "olkcli"
      ]
    }
  }
}

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 olkcli - unscoped; check the name against the project README before installing

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

03 · What Outlook can do

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

Latest releases

v1.12.0 · 2026-08-15

support targeted event creation

v1.11.0 · 2026-07-31

complete guarded provider contracts (#70)

v1.10.0 · 2026-07-12

add browser-based authorization-code + PKCE login (#68)

04 · Who maintains Outlook

outlook is maintained by rlrghb. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

repository: github.com/rlrghb/olkcli
category: email - ranked #16 of 75 actively-maintained email servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-15)
registry: io.github.rlrghb/outlook (active, first published 2026-06-09 · 6 versions)
packages: npm:olkcli

06 · Outlook FAQ

What is Outlook?

Is Outlook still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-22 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Outlook?

Run `npx -y olkcli`. You can also paste the ready-made client config above.

Does Outlook 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

Alternatives to Outlook

Maintained email servers if Outlook isn't the fit.

More email MCP servers · IntoDNS.ai DNS & Email Security Scanner · Forge MCP · Email Inbox API + Sending by Sendmux · AI · Sequenzy MCP

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