Google Workspace MCP (tomohiro-owada/google-workspace-mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 51 tools. No publisher has claimed this listing.

Caution

74/100

Google Workspace MCP

Item: Google Workspace MCP
Rating: 74
Author: M8ven

Connects AI assistants to Google Workspace APIs, enabling management of Calendar, Gmail, Drive, Docs, Sheets, Slides, Chat, and People.

→ tomohiro-owada/google-workspace-mcp · listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every push why connect →

Who stands behind it

tomohiro-owada

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

⚡ Connect GitHub for Live Monitored

Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings

⚠️

Known vulnerabilities in dependencies: 1 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// tools this server exposes51 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

auth.clear

Clears the authentication credentials, forcing a re-login on the next request.

auth.refreshToken

Manually triggers the token refresh process.

docs.create

Creates a new Google Doc. Can be blank or with Markdown content.

docs.insertText

Inserts text at the beginning of a Google Doc.

docs.find

Finds Google Docs by searching for a query in their title. Supports pagination.

drive.findFolder

Finds a folder by name in Google Drive.

drive.createFolder

Creates a new folder in Google Drive.

docs.move

Moves a document to a specified folder.

docs.getText

Retrieves the text content of a Google Doc.

docs.appendText

Appends text to the end of a Google Doc.

docs.replaceText

Replaces all occurrences of a given text with new text in a Google Doc.

docs.extractIdFromUrl

Extracts the document ID from a Google Workspace URL.

slides.getText

Retrieves the text content of a Google Slides presentation.

slides.find

Finds Google Slides presentations by searching for a query. Supports pagination.

slides.getMetadata

Gets metadata about a Google Slides presentation.

sheets.getText

Retrieves the content of a Google Sheets spreadsheet.

sheets.getRange

Gets values from a specific range in a Google Sheets spreadsheet.

sheets.find

Finds Google Sheets spreadsheets by searching for a query. Supports pagination.

sheets.getMetadata

Gets metadata about a Google Sheets spreadsheet.

drive.search

Searches for files and folders in Google Drive. The query can be a simple search term, a Google Drive URL, or a full query string. For more information on query strings see: https://developers.google.com/drive/api/guides/search-files

drive.downloadFile

Downloads the content of a file from Google Drive to a local path. Note: Google Docs, Sheets, and Slides require specialized handling.

calendar.list

Lists all of the user's calendars.

calendar.createEvent

Creates a new event in a calendar.

calendar.listEvents

Lists events from a calendar. Defaults to upcoming events.

calendar.getEvent

Gets the details of a specific calendar event.

calendar.findFreeTime

Finds a free time slot for multiple people to meet.

calendar.updateEvent

Updates an existing event in a calendar.

calendar.respondToEvent

Responds to a meeting invitation (accept, decline, or tentative).

calendar.deleteEvent

Deletes an event from a calendar.

chat.listSpaces

Lists the spaces the user is a member of.

chat.findSpaceByName

Finds a Google Chat space by its display name.

chat.sendMessage

Sends a message to a Google Chat space.

chat.getMessages

Gets messages from a Google Chat space.

chat.sendDm

Sends a direct message to a user.

chat.findDmByEmail

Finds a Google Chat DM space by a user's email address.

chat.listThreads

Lists threads from a Google Chat space in reverse chronological order.

chat.setUpSpace

Sets up a new Google Chat space with a display name and a list of members.

gmail.search

Search for emails in Gmail using query parameters.

gmail.get

Get the full content of a specific email message.

gmail.downloadAttachment

Downloads an attachment from a Gmail message to a local file.

gmail.modify

Modify a Gmail message. Supported modifications include: - Add labels to a message. - Remove labels from a message. There are a list of system labels that can be modified on a message: - INBOX: removing INBOX label removes the message from inbox and archives the message. - SPAM: addi…

gmail.send

Send an email message.

gmail.createDraft

Create a draft email message.

gmail.sendDraft

Send a previously created draft email.

gmail.listLabels

List all Gmail labels in the user's mailbox.

time.getCurrentDate

Gets the current date. Returns both UTC (for calendar/API use) and local time (for display to the user), along with the timezone.

time.getCurrentTime

Gets the current time. Returns both UTC (for calendar/API use) and local time (for display to the user), along with the timezone.

time.getTimeZone

Gets the local timezone. Note: timezone is also included in getCurrentDate and getCurrentTime responses.

people.getUserProfile

Gets a user's profile information.

people.getMe

Gets the profile information of the authenticated user.

people.getUserRelations

Gets a user's relations (e.g., manager, spouse, assistant, etc.). Common relation types include: manager, assistant, spouse, partner, relative, mother, father, parent, sibling, child, friend, domesticPartner, referredBy. Defaults to the authenticated user if no userId is provided.

// known CVEs in dependencies1 high7 medium9 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.25.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

mediumdompurify@3.3.1GHSA-39q2-94rc-95cp

DOMPurify's ADD_TAGS function form bypasses FORBID_TAGS due to short-circuit evaluation

mediumdompurify@3.3.1GHSA-cj63-jhhr-wcxv

DOMPurify USE_PROFILES prototype pollution allows event handlers

mediumdompurify@3.3.1GHSA-cjmm-f4jc-qw8r

DOMPurify ADD_ATTR predicate skips URI validation

mediumdompurify@3.3.1GHSA-cmwh-pvxp-8882

DOMPurify: Permanent `ALLOWED_ATTR` pollution via `setConfig()` bypassing the hook clone-guard (incomplete fix of the 3.4.7 hook-pollution patch)

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// environment variables

To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.

configBROWSER

configCLIENT_ID

configDEBIAN_FRONTEND

configGITHUB_REF_NAME

configOAUTH_CALLBACK_HOST

configOAUTH_CALLBACK_PORT

configREDIRECT_URI

configSECRET_NAME

configSSH_CONNECTION

// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

51/51 tools missing one or more hints — auth.clear (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); auth.refreshToken (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); docs.create (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +48 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

Only 1/3 tool handlers declare input schemas (33%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 0/3 tool handlers wrap calls in try/catch (0%)

Wrap each tool handler body in try/catch and return a structured error response.

Tool test coverage

Only 1/51 tools referenced in tests (2%)

Write tests that reference each tool by name so every tool has at least one test.

Production dependencies are patched

0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.25.2 (high), dompurify@3.3.1 (medium)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dependency freshness

1/11 production deps stale: @google-cloud/local-auth@2024-01-08 (2.5y)

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail

The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.

// improvement guidance — verified publishers only

We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Verified](https://m8ven.ai/badge/mcp/tomohiro-owada/google-workspace-mcp?variant=verified)](https://m8ven.ai/mcp/tomohiro-owada/google-workspace-mcp)

Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.

commit: 1d4c0f469ff02914a70ee0e55cfcffc96bebb02d

code hash: 25f75269b4ec1a283a95bde318521570ba07c45d94509c6179bc1baf99b001d0

view raw JSON →

Check MCPs from inside your assistant

Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check

check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern

How to add it →Free · no account needed · works in any MCP client