Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.butterbase-ai/mcp

The official Model Context Protocol server for Butterbase — manage schemas, auth, functions, storage, RAG, realtime, and deploys on Butterbase from any MCP-capable client (Claude Code, Claude Desktop, Cursor, Windsurf,

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

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

NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_ENV_READ

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    src/active-window-cache.ts, line 24 const res = await fetch(`${getBaseUrl()}/v1/public/hackathons/active`);

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    src/active-window-cache.ts, line 24 const res = await fetch(`${getBaseUrl()}/v1/public/hackathons/active`);

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    src/api-client.ts, line 20 return process.env.BUTTERBASE_API_KEY;

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. can reach api.email.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    src/active-window-cache.ts, line 24

    const res = await fetch(`${getBaseUrl()}/v1/public/hackathons/active`);

    src/api-client.ts, line 73

    const res = await fetch(`${getBaseUrl()}${path}`, {

    src/api-client.ts, line 80

    const res = await fetch(`${getBaseUrl()}${path}`, {

    Show more

    src/api-client.ts, line 89

    const res = await fetch(`${getBaseUrl()}${path}`, {

    src/api-client.ts, line 98

    const res = await fetch(`${getBaseUrl()}${path}`, {

    src/api-client.ts, line 110

    const res = await fetch(`${getBaseUrl()}${path}`, {

    src/docs/user-documentation.ts, line 789

    await fetch(uploadUrl, {

    src/docs/user-documentation.ts, line 1073

    const response = await fetch(\`\${baseUrl}/data\`, {

    src/docs/user-documentation.ts, line 2483

    curl -X PUT https://api.butterbase.ai/v1/{app_id}/ai/meetings/webhook \\

  • Secrets

    Note

    reads an environment variable.

    SECRETS_ENV_READ

    src/api-client.ts, line 20

    return process.env.BUTTERBASE_API_KEY;

    src/docs/user-documentation.ts, line 3688

    const admin = createClient({ appId: 'app_abc123', apiKey: process.env.BUTTERBASE_API_KEY });

  • 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 6faacd7b6e42. can reach a host that is not written as a fixed address. can reach api.email.com. The description does not name that host. reads an environment variable.

Date and source

Date checked:

View source

github.com

Commit graded: 6faacd7b6e42240aa32d4a23bdc3978eb5742743

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Read how this letter is chosen