Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Crawlbase Mcp

Crawlbase MCP is a Model Context Protocol (MCP) server that bridges AI agents and the live web.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report before installing.

Graded by PlugVetRubric v2

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

NETWORK_HOST_FROM_INPUT

Why this grade

  • NETWORK_HOST_FROM_INPUT Medium

    A file takes a URL or endpoint as input and has no fixed host list.

    src/mcp-server.js, line 497 const screenshotResponse = await fetch(result.data.screenshot_url);

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

    Serious

    accepts a host from input, with no fixed list in this file.

    NETWORK_HOST_FROM_INPUT

    src/mcp-server.js, line 497

    const screenshotResponse = await fetch(result.data.screenshot_url);

    src/crawlbase/client.js, line 125

    const response = await fetch(fetchUrl, {

    src/crawlbase/client.js, line 328

    const response = await fetch(fetchUrl, init);

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/mcp-server.js, line 41

    const normalToken = options.token || process.env.CRAWLBASE_TOKEN;

    src/mcp-server.js, line 42

    const jsToken = options.jsToken || process.env.CRAWLBASE_JS_TOKEN;

    .gitignore, line 8

    # Environment files

    Show more

    .gitignore, line 9

    .env

    .gitignore, line 10

    .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.

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Note

Hygiene check of commit 66e16b730580. accepts a host from input, with no fixed list in this file. reads a credential or environment file. no licence file found.

Date and source

Date checked:

View source

github.com

Commit graded: 66e16b730580417a1813b6a429d09d6c3af6d95e

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Read how this letter is chosen