google-mcp (thehellmaker/google-mcp) is an MCP server listed on the M8ven Trust Index. It scores 60 out of 100, grade C. It declares 4 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
60/100

google-mcp

Enables interaction with Google Chat through MCP, allowing listing spaces and messages, searching messages, and sending messages. Supports local and remote transports.

→ thehellmaker/google-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 pushwhy connect →

Who stands behind it

thehellmaker

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: 3 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.
🔐
You'll be asked for 2 credentials: GOOGLE_MCP_BEARER_TOKEN, GOOGLE_OAUTH_CLIENT_SECRET
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes4 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.

chat_list_spaces

List Chat spaces and direct messages the authenticated user belongs to.

chat_list_messages

List messages in a space. Provide the space resource name, e.g. spaces/AAAA.

chat_find_messages

Fetch recent messages in a space and return those whose text contains the query (case-insensitive).

chat_send_message

Post a text message to a space. Provide the space resource name and message text.

// known CVEs in dependencies3 high

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

high@modelcontextprotocol/sdk@1.12.0GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

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.
🔐 secretGOOGLE_MCP_BEARER_TOKENThe HTTP transport listens on PORT (default 8080) at GOOGLE_MCP_HTTP_PATH (default /mcp). Set to require an Authorization: Bearer <token> header.
configGOOGLE_MCP_CONFIG_DIR
configGOOGLE_MCP_HTTP_PATHThe HTTP transport listens on PORT (default 8080) at (default /mcp). Set GOOGLE_MCP_BEARER_TOKEN to require an Authorization: Bearer <token> header.
configGOOGLE_MCP_TRANSPORTThe server selects a transport at startup — by CLI arg or the env var. Adding a transport means implementing one TransportRunner and registering it; nothing else changes (Open/Closed).
configGOOGLE_OAUTH_CLIENT_IDexport ="your-client-id.apps.googleusercontent.com"
🔐 secretGOOGLE_OAUTH_CLIENT_SECRETexport ="your-client-secret"
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
// 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

4/4 tools missing one or more hints — chat_list_spaces (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); chat_list_messages (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); chat_find_messages (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 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 handlers catch errors

Only 0/4 tool handlers wrap calls in try/catch (0%)

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

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.12.0 (high), @modelcontextprotocol/sdk@1.12.0 (high)

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

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 5 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/thehellmaker/google-mcp?variant=verified)](https://m8ven.ai/mcp/thehellmaker/google-mcp)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 7abd9035433ed3c6a8d16cdaa3c077c420cca979
code hash: 8c5e7e9c2b1557a476442af10b3436c0987154c70facd26ebcb0642b30619265
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