Google Calendar MCP Server (murphy360/mcp_google_calendar) is an MCP server listed on the M8ven Trust Index. It scores 0 out of 100, grade F. It declares 11 tools. No publisher has claimed this listing.

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Google Calendar MCP Server

Integrates Google Calendar with the Model Context Protocol to manage events, search agendas, and check availability. It features Home Assistant integration and SSE support for remote access through Claude Desktop.

→ murphy360/mcp_google_calendar· listed on glama

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Who stands behind it

murphy360

Source: Glama

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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.

⏳ This MCP is queued for scoring. Check back in a few minutes.
// key findings
🚨
Reads files from sensitive locations
Touches: credentials, credentials, credentials
// 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.
configHEADLESS
// 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

11/11 tools missing one or more hints — calendar_get_current_time (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); calendar_list_events (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); calendar_search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +8 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.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tests exist

No test files found

Add tests that exercise each declared tool.

No access to sensitive paths

Reads sensitive paths: credentials, credentials, credentials

Remove reads of sensitive system paths. If you genuinely need them, document why in the README.

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
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commit: f6054bdb59e4cfb7e8127cf3b10c331e7c16f9f7
code hash: a8f97c61f9831f56b30f25927bc9fe95cbc1ad4d33f274df6c12369b39fe4582
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