Grades are a hygiene check, not a security guarantee.

MCP, MCP server

CalendarMCP

Hosted Google Calendar MCP server for AI agents.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit cb6a55d7eaf2, unchanged since the check below.

SECRETS_PATH_CREDENTIAL

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    README.md, line 3 > **The hosted Google Calendar MCP server.** Connect any AI agent to your Google Calendar in about two minutes. No self-hosting, no Docker, no `credentials.json`.

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_CREDENTIAL

    README.md, line 3

    > **The hosted Google Calendar MCP server.** Connect any AI agent to your Google Calendar in about two minutes. No self-hosting, no Docker, no `credentials.json`.

    README.md, line 17

    - **Zero setup.** One Google OAuth click. No `credentials.json`, no Google Cloud Console, no Docker.

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit cb6a55d7eaf2. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: cb6a55d7eaf2fdb3cbeb65846ad83ac31c2ef683

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen