Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mailcannon

AI-powered email outreach platform using MCP (Model Context Protocol).

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 7194a61990a1, 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).

    .gitignore, line 5 gmail-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

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    src/mcp-client.ts, line 44

    response = await fetch(this._url, {

    src/mcp-client.ts, line 148

    const res = await fetch(

    src/mcp-client.ts, line 156

    const res2 = await fetch(

    Show more

    src/mcp-client.ts, line 170

    const res = await fetch(registrationEndpoint, {

    src/mcp-client.ts, line 215

    const res = await fetch(tokenEndpoint, {

    src/mcp-client.ts, line 238

    const res = await fetch(tokenEndpoint, {

    src/tools/deliverability-check.ts, line 13

    const res = await fetch(url);

    public/app.html, line 460

    var res = await fetch(url, { ...opts, headers });

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    src/gmail.ts, line 7

    const GOOGLE_CLIENT_SECRET = process.env.GOOGLE_CLIENT_SECRET || "";

    src/supabase.ts, line 7

    const supabaseKey = process.env.SUPABASE_ANON_KEY || SUPABASE_ANON_KEY;

    .gitignore, line 5

    gmail-credentials.json

    Show more

    src/supabase.ts, line 8

    const serviceRoleKey = process.env.SUPABASE_SERVICE_ROLE_KEY;

    src/web.ts, line 267

    const secret = process.env.CRON_SECRET;

    .gitignore, line 2

    dist/

    .gitignore, line 6

    .vercel

    README.md, line 22

    Configure provider credentials in `.env`.

    supabase/.gitignore, line 5

    # dotenvx

    supabase/.gitignore, line 6

    .env.keys

    supabase/.gitignore, line 7

    .env.local

  • Agent instructions

    Pass

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

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Note

    no licence file found.

    LICENCE_MISSING

    No file path was stored.

    no licence file found.

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 7194a61990a1. can reach a host that is not written as a fixed address. reads a credential or environment file. no licence file found.

Date and source

Date checked:

View source

github.com

Commit graded: 7194a61990a18bfe3c13044bf2ab3d4dd214ac73

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