Google Workspace by aaronsb MCP Server

Give AI agents access to Gmail, Calendar, Drive, and more — multi-account, manifest-driven

Publisher claimed. No tool list reported, and Pod has not connected to this server.

Status

Pod has not dialled Google Workspace by aaronsb yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

Connect

Published as @aaronsb/google-workspace-mcp on npm. Runs locally.

Reviewed GitHub reports

57 GitHub reports passed Pod's relevance review. This can include external user reports, maintainer-confirmed bugs, and concrete feature gaps. It is evidence to inspect, not a count of distinct defects. Showing 12.

Most discussed

[BUG] OOB Deprecated

This repo looks great!

Bug Description

I've looked at your detailed setup guide but don't see how to configure a redirect URI for a desktop app?

Create OAuth 2.0 credentials:
1. Choose "Desktop application" type
2. Note your Client ID and Client Secret
3. Use "urn:ietf:wg:oauth:2.0:oob" as the redirect URI (this enables out-of-band authentication)

Steps To Reproduce

Go to Google Clients
Create Client
Select "Deskto

Read the thread · 2025-04-19 · closed · external user · 3 comments

manage_scratchpad json-mode doc import reads the first tab only

manage_scratchpad import with mode: 'json' calls documents.get without includeTabsContent, so a multi-tab document imports as its FIRST TAB ONLY — the same defect as #152, on a different surface. mode: 'markdown' is fine: it goes through Drive's files.export, which returns every tab.

src/server/scratchpad/adapters/import-doc.ts:93

This was left out of the #152 fix deliberately, because the obvious change breaks something. Measured live: with includeTabsContent=true, Google **re

Read the thread · 2026-07-30 · closed · 2 comments

Legacy streamable-http: credential refresh triggers session rebinding error for multi-account use

Bug Description

When using Google Workspace MCP in legacy streamable-http multi-user mode, stored credentials are successfully refreshed after a server restart, but the request fails because the MCP session attempts to rebind to a different Google identity.

The server then incorrectly starts a new OAuth flow even though valid refreshed credentials already exist.

This appears to affect environments where a single MCP server is used with multiple Google accounts by supplying user_google_ema

Read the thread · 2026-07-10 · closed · external user · 2 comments

Proposal: opt-in read-only OAuth scopes (access: 'read')

Proposal

Add an opt-in access: 'read' | 'readwrite' option to account authentication. When set to 'read', it requests the read-only variant of each service scope (gmail.readonly, drive.readonly, calendar.readonly, …) instead of the current read/write scopes (gmail.modify, drive, calendar, …).

The default stays 'readwrite' — fully backward-compatible. No behavior changes unless a user opts in.

Motivation

In multi-account setups it's common to want least privile

Read the thread · 2026-06-03 · open · external user · 2 comments

manage_calendar.create fails: package emits --attendees, gws CLI takes --attendee (singular)

Bug

manage_calendar operation create returns validationError whenever the attendees param is provided. The package emits --attendees <comma-string> to the gws CLI, but gws calendar +insert only accepts --attendee <EMAIL> (singular, can be repeated). The unknown plural flag is rejected at validation time.

Reproduction

{
  "operation": "create",
  "email": "user@example.com",
  "summary": "Test",
  "start": "2026-05-01T00:00:00+05:30",
  "end": "2026-05-01T01:00:00

[Read the thread](https://github.com/aaronsb/google-workspace-mcp/issues/116) · 2026-04-30 · closed · external user · 2 comments

### Most recent

### Expose contact groups — list, get, and add/remove members

Google publishes seven `contactGroups` methods and `manage_contacts` exposes none of them. Contact groups are how Gmail labels people — "Family", "Team" — and they are the natural follow-on to the contact operations that shipped in v4.3.0.

## The surface

contactGroups.list contactGroups.get contactGroups.batchGet contactGroups.create contactGroups.update contactGroups.delete contactGroups.members.modify


`members.modify` is the interesting one: it adds and removes 

[Read the thread](https://github.com/aaronsb/google-workspace-mcp/issues/186) · 2026-08-17 · open · 0 comments

### Service account domain-wide delegation as a second auth mode, alongside OAuth

Roadmap idea. Today every account authenticates the same way: interactive OAuth, one browser round trip per account, a refresh token on disk. That is right for a person on their own machine and wrong for two cases it currently cannot serve.

## What it would enable

**Workspace administrators acting across a domain.** With domain-wide delegation, one service account can impersonate any user in the domain without each of them consenting individually. "Search every mailbox for this invoice" is not

[Read the thread](https://github.com/aaronsb/google-workspace-mcp/issues/184) · 2026-08-17 · open · 0 comments

### Spotlighting only wraps Gmail HTML — Drive, Docs, Meet and Contacts text is unwrapped

Spotlighting (ADR-305) is applied to Gmail HTML bodies and nothing else. Every other source of attacker-controlled text reaches the agent unwrapped.

## Measured

`sanitizeHtmlForAgent` has exactly two callers, both Gmail:

src/server/formatting/markdown.ts:75 sanitizeHtmlForAgent(decoded, { source: 'gmail' }) src/server/formatting/markdown.ts:89 sanitizeHtmlForAgent(html, { source: 'gmail' })


Zero references in `src/services/drive/patch.ts`, `src/services/docs/patch.ts`, `src/se

[Read the thread](https://github.com/aaronsb/google-workspace-mcp/issues/183) · 2026-08-17 · open · 0 comments

### manage_email reports "Email sent" with Message ID: unknown when Gmail did not confirm a send

`manage_email send` reports success on a Gmail response that never confirmed one.

## The defect

`src/services/gmail/patch.ts:309`:

```js
text: `Email sent to ${to}.\n\n**Subject:** ${subject}\n**Message ID:** ${data.id ?? 'unknown'}`

Same shape at :269 (forward), :303 (draft) and :366 (draft reply).

If Gmail returns a body without an id, the agent is told "Email sent to alice@example.com" with an id of unknown. Nothing distinguishes that from a real send, so the agent repo

Read the thread · 2026-08-17 · closed · 0 comments

Google Slides: expose it through the scratchpad, the way Docs and Sheets work

Roadmap idea. Related to #151, which asks for slides.presentations.batchUpdate specifically — this is the wider shape that would make it useful.

The idea

Docs and Sheets aren't exposed as raw API calls. They're authored through manage_scratchpad: compose or edit content in a buffer, addressed by line or JSON path, then send it — and in JSON mode the buffer live-syncs back to the document. Slides could use the same machinery rather than growing its own editing surface.

That matters beca

Read the thread · 2026-08-17 · open · 0 comments

Advertise the .mcpb bundle in the MCP Registry, not just the npm package

We build google-workspace-mcp.mcpb and attach it to every release, but server.json advertises only the npm package. Other Google Workspace servers in the registry list both, so Claude Desktop users can install straight from the registry listing.

Noticed while adding repository metadata (#179).

What the entry would gain

{
  "registryType": "mcpb",
  "identifier": "https://github.com/aaronsb/google-workspace-mcp/releases/download/v4.4.0/google-workspace-mcp.mcpb",
  "version": "4

[Read the thread](https://github.com/aaronsb/google-workspace-mcp/issues/180) · 2026-08-17 · open · 0 comments

### Batch many edits into one documents.batchUpdate / spreadsheets.batchUpdate call

The second bulk axis, found while building the first (ADR-308, #10).

## What's happening now

`manage_docs` and `manage_sheets` already call Google's `batchUpdate` — but each tool call sends exactly one request inside it:

- `src/services/docs/patch.ts:411`, `:439`, `:473` — `requests: [{ … }]`
- `src/services/sheets/patch.ts:334` — `requests: [request]`

Google's `batchUpdate` accepts an **array**. So five edits to one document cost five HTTP calls carrying one request each, where they could c

[Read the thread](https://github.com/aaronsb/google-workspace-mcp/issues/175) · 2026-08-17 · open · 0 comments

[See all 23 reports Pod holds for Google Workspace by aaronsb](/mcp/google-workspace-by-aaronsb/issues) — of 57 qualified upstream.

## Firsthand observations

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