Office Addin MCP

office-addin-mcp attaches to the WebView2 runtime that Office uses to host Office.js add-ins, then exposes a high-level tool surface to LLM clients. Instead of teaching the model how to chain 15 raw Office.js primitives, the server ships one tool call per workflow. Its 29 documented tools cover excel, discover, runscript, powerpoint. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-06-09 · ★ 3 · #129 OF 194 MAINTAINED AUTOMATION · VERIFIED 2026-08-25

Go servers · how we verify → /methodology

01 · Install Office Addin MCP

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add dsbissett-office-addin-mcp -- npx -y @dsbissett/office-addin-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "dsbissett-office-addin-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@dsbissett/office-addin-mcp"
      ]
    }
  }
}

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 no standard license detected - usage rights unclear; check the repo before commercial use

npm package @dsbissett/office-addin-mcp - published under the repo owner's npm scope (@dsbissett)

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

03 · What Office Addin MCP can do

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

What you can build

With this server connected, an agent can load a range, return rows-as-objects + per-column type tags, run an arbitrary Excel.run callback, run an arbitrary Word.run callback, and query the mailbox / current item.

Capability map

Tools grouped from the project's README - what Office Addin MCP lets an agent do.

Excel

6 tools - e.g. Sheets, tables, named ranges, used-range bounds - single call; Load a range, return rows-as-objects + per-column type tags; Server-side filter / project / groupBy / agg / limit DSL

excel.summarizeWorkbook · excel.tabulateRegion · excel.query · excel.discover · excel.applyDiff · excel.runScript

Powerpoint

5 tools - e.g. Slide-level query DSL; Deck structure snapshot; Rewrite a slide's title and/or body bullets

powerpoint.query · powerpoint.discover · powerpoint.rebuildSlideFromOutline · powerpoint.runScript · PowerPoint

Onenote

5 tools - e.g. Notebook / section / page query DSL; Notebook structure snapshot; Append HTML and/or bullets to a page

onenote.query · onenote.discover · onenote.appendToPage · onenote.runScript · OneNote

Outlook

4 tools - e.g. Query the mailbox / current item; Mailbox + active-item snapshot; Set subject and/or body on a compose-mode item

outlook.query · outlook.discover · outlook.draftReply · outlook.runScript

Word

3 tools - e.g. Document structure snapshot; Batch find/replace edits in one Word.run; Run an arbitrary Word.run callback

word.discover · word.applyEdits · word.runScript

Macro

2 tools - e.g. Begin capturing subsequent tool calls into a named macro; Finalize and persist the macro to disk

macro.record_start · macro.record_stop

Office

1 tool - e.g. Read an Excel range and insert it on a PowerPoint slide

office.embed

create & write

1 tool - e.g. ensureRunning (start here - probes then launches if needed), launch, stop, detect, status, contextInfo, cfRuntimeInfo, openDialog, dialogSubscribe, dialogClose,

addin.

04 · Who maintains Office Addin MCP

office-addin-mcp is maintained by dsbissett. We track 2 MCP servers from dsbissett - 2 actively maintained, 5 combined GitHub stars, oldest repo from Apr 2026. Full record: all servers from dsbissett.

excel-webview2-mcp MCP server for Excel add-ins via WebView2 CDP ★ 2

05 · Facts

repository: github.com/dsbissett/office-addin-mcp
category: automation - ranked #129 of 194 actively-maintained automation servers as of 2026-08-25.
registry: io.github.dsbissett/office-addin-mcp (active, first published 2026-05-01 · 7 versions)
packages: npm:@dsbissett/office-addin-mcp

06 · Office Addin MCP FAQ

Is Office Addin MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-06-09. We re-verify nightly.

What can Office Addin MCP do?

How do I install Office Addin MCP?

Run `npx -y @dsbissett/office-addin-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Office Addin MCP 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 Office Addin MCP

Alternatives to Office Addin MCP

Maintained automation servers if Office Addin MCP isn't the fit.

More automation MCP servers · GB Studio MCP Server · Raycast · Yieldagentx402 · IFC MCP · Floom

More Go MCP servers · Toolmesh · Pituitary · Yutu · Go Model · Bitbucket MCP · see all